Bumped version to 0.10.1

Fix instance back references

.travis.yml

@@ -1,27 +1,45 @@
-# http://travis-ci.org/#!/MongoEngine/mongoengine
 language: python
-services: mongodb
 python:
-    - "2.6"
-    - "2.7"
-    - "3.2"
-    - "3.3"
+- '2.6'
+- '2.7'
+- '3.2'
+- '3.3'
+- '3.4'
+- pypy
+- pypy3
 env:
-  - PYMONGO=dev DJANGO=1.5.1
-  - PYMONGO=dev DJANGO=1.4.2
-  - PYMONGO=2.5 DJANGO=1.5.1
-  - PYMONGO=2.5 DJANGO=1.4.2
+- PYMONGO=2.7
+- PYMONGO=2.8
+- PYMONGO=3.0
+- PYMONGO=dev
+matrix:
+  fast_finish: true
+before_install:
+- travis_retry sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 7F0CEB10
+- echo 'deb http://downloads-distro.mongodb.org/repo/ubuntu-upstart dist 10gen' |
+  sudo tee /etc/apt/sources.list.d/mongodb.list
+- travis_retry sudo apt-get update
+- travis_retry sudo apt-get install mongodb-org-server
 install:
-    - if [[ $TRAVIS_PYTHON_VERSION == '2.'* ]]; then cp /usr/lib/*/libz.so $VIRTUAL_ENV/lib/; fi
-    - if [[ $TRAVIS_PYTHON_VERSION == '2.'* ]]; then pip install pil --use-mirrors ; true; fi
-    - if [[ $TRAVIS_PYTHON_VERSION == '2.'* ]]; then pip install django==$DJANGO --use-mirrors ; true; fi
-    - if [[ $PYMONGO == 'dev' ]]; then pip install https://github.com/mongodb/mongo-python-driver/tarball/master; true; fi
-    - if [[ $PYMONGO != 'dev' ]]; then pip install pymongo==$PYMONGO --use-mirrors; true; fi
-    - python setup.py install
+- sudo apt-get install python-dev python3-dev libopenjpeg-dev zlib1g-dev libjpeg-turbo8-dev
+  libtiff4-dev libjpeg8-dev libfreetype6-dev liblcms2-dev libwebp-dev tcl8.5-dev tk8.5-dev
+  python-tk
+- travis_retry pip install tox>=1.9 coveralls
+- travis_retry tox -e $(echo py$TRAVIS_PYTHON_VERSION-mg$PYMONGO | tr -d . | sed -e 's/pypypy/pypy/') -- -e test
 script:
-    - python setup.py test
+- tox -e $(echo py$TRAVIS_PYTHON_VERSION-mg$PYMONGO | tr -d . | sed -e 's/pypypy/pypy/') -- --with-coverage
+after_script: coveralls --verbose
 notifications:
-  irc: "irc.freenode.org#mongoengine"
+  irc: irc.freenode.org#mongoengine
 branches:
   only:
-    - master
+  - master
+  - /^v.*$/
+deploy:
+  provider: pypi
+  user: the_drow
+  password:
+    secure: QMyatmWBnC6ZN3XLW2+fTBDU4LQcp1m/LjR2/0uamyeUzWKdlOoh/Wx5elOgLwt/8N9ppdPeG83ose1jOz69l5G0MUMjv8n/RIcMFSpCT59tGYqn3kh55b0cIZXFT9ar+5cxlif6a5rS72IHm5li7QQyxexJIII6Uxp0kpvUmek=
+  on:
+    tags: true
+    repo: MongoEngine/mongoengine

AUTHORS

@@ -12,12 +12,10 @@ Laine Herron https://github.com/LaineHerron
 
 CONTRIBUTORS
 
-Dervived from the git logs, inevitably incomplete but all of whom and others
+Derived from the git logs, inevitably incomplete but all of whom and others
 have submitted patches, reported bugs and generally helped make MongoEngine
 that much better:
 
- * Harry Marr
- * Ross Lawley
  * blackbrrr
  * Florian Schlachter
  * Vincent Driessen
@@ -77,7 +75,7 @@ that much better:
  * Adam Parrish
  * jpfarias
  * jonrscott
- * Alice Zoë Bevan-McGregor
+ * Alice Zoë Bevan-McGregor (https://github.com/amcgregor/)
  * Stephen Young
  * tkloc
  * aid
@@ -121,7 +119,7 @@ that much better:
  * Anton Kolechkin
  * Sergey Nikitin
  * psychogenic
- * Stefan Wójcik
+ * Stefan Wójcik (https://github.com/wojcikstefan)
  * dimonb
  * Garry Polley
  * James Slagle
@@ -136,15 +134,14 @@ that much better:
  * Paul Swartz
  * Sundar Raman
  * Benoit Louy
- * lraucy
+ * Loic Raucy (https://github.com/lraucy)
  * hellysmile
  * Jaepil Jeong
  * Daniil Sharou
- * Stefan Wójcik
  * Pete Campton
  * Martyn Smith
  * Marcelo Anton
- * Aleksey Porfirov
+ * Aleksey Porfirov (https://github.com/lexqt)
  * Nicolas Trippar
  * Manuel Hermann
  * Gustavo Gawryszewski
@@ -161,3 +158,74 @@ that much better:
  * Jin Zhang
  * Daniel Axtens
  * Leo-Naeka
+ * Ryan Witt (https://github.com/ryanwitt)
+ * Jiequan (https://github.com/Jiequan)
+ * hensom (https://github.com/hensom)
+ * zhy0216 (https://github.com/zhy0216)
+ * istinspring (https://github.com/istinspring)
+ * Massimo Santini (https://github.com/mapio)
+ * Nigel McNie (https://github.com/nigelmcnie)
+ * ygbourhis (https://github.com/ygbourhis)
+ * Bob Dickinson (https://github.com/BobDickinson)
+ * Michael Bartnett (https://github.com/michaelbartnett)
+ * Alon Horev (https://github.com/alonho)
+ * Kelvin Hammond (https://github.com/kelvinhammond)
+ * Jatin Chopra (https://github.com/jatin)
+ * Paul Uithol (https://github.com/PaulUithol)
+ * Thom Knowles (https://github.com/fleat)
+ * Paul (https://github.com/squamous)
+ * Olivier Cortès (https://github.com/Karmak23)
+ * crazyzubr (https://github.com/crazyzubr)
+ * FrankSomething (https://github.com/FrankSomething)
+ * Alexandr Morozov (https://github.com/LK4D4)
+ * mishudark (https://github.com/mishudark)
+ * Joe Friedl (https://github.com/grampajoe)
+ * Daniel Ward (https://github.com/danielward)
+ * Aniket Deshpande (https://github.com/anicake)
+ * rfkrocktk (https://github.com/rfkrocktk)
+ * Gustavo Andrés Angulo (https://github.com/woakas)
+ * Dmytro Popovych (https://github.com/drudim)
+ * Tom (https://github.com/tomprimozic)
+ * j0hnsmith (https://github.com/j0hnsmith)
+ * Damien Churchill (https://github.com/damoxc)
+ * Jonathan Simon Prates (https://github.com/jonathansp)
+ * Thiago Papageorgiou (https://github.com/tmpapageorgiou)
+ * Omer Katz (https://github.com/thedrow)
+ * Falcon Dai (https://github.com/falcondai)
+ * Polyrabbit (https://github.com/polyrabbit)
+ * Sagiv Malihi (https://github.com/sagivmalihi)
+ * Dmitry Konishchev (https://github.com/KonishchevDmitry)
+ * Martyn Smith (https://github.com/martynsmith)
+ * Andrei Zbikowski (https://github.com/b1naryth1ef)
+ * Ronald van Rij (https://github.com/ronaldvanrij)
+ * François Schmidts (https://github.com/jaesivsm)
+ * Eric Plumb (https://github.com/professorplumb)
+ * Damien Churchill (https://github.com/damoxc)
+ * Aleksandr Sorokoumov (https://github.com/Gerrrr)
+ * Clay McClure (https://github.com/claymation)
+ * Bruno Rocha (https://github.com/rochacbruno)
+ * Norberto Leite (https://github.com/nleite)
+ * Bob Cribbs (https://github.com/bocribbz)
+ * Jay Shirley (https://github.com/jshirley)
+ * David Bordeynik (https://github.com/DavidBord)
+ * Axel Haustant (https://github.com/noirbizarre)
+ * David Czarnecki (https://github.com/czarneckid)
+ * Vyacheslav Murashkin (https://github.com/a4tunado)
+ * André Ericson https://github.com/aericson)
+ * Mikhail Moshnogorsky (https://github.com/mikhailmoshnogorsky)
+ * Diego Berrocal (https://github.com/cestdiego)
+ * Matthew Ellison (https://github.com/seglberg)
+ * Jimmy Shen (https://github.com/jimmyshen)
+ * J. Fernando Sánchez (https://github.com/balkian)
+ * Michael Chase (https://github.com/rxsegrxup)
+ * Eremeev Danil (https://github.com/elephanter)
+ * Catstyle Lee (https://github.com/Catstyle)
+ * Kiryl Yermakou (https://github.com/rma4ok)
+ * Matthieu Rigal (https://github.com/MRigal)
+ * Charanpal Dhanjal (https://github.com/charanpald)
+ * Emmanuel Leblond (https://github.com/touilleMan)
+ * Breeze.Kay (https://github.com/9nix00)
+ * Vicki Donchenko (https://github.com/kivistein)
+ * Emile Caron (https://github.com/emilecaron)
+ * Amit Lichtenberg (https://github.com/amitlicht)
+ * Lars Butler (https://github.com/larsbutler)

CONTRIBUTING.rst

@@ -29,7 +29,10 @@ Style Guide
 -----------
 
 MongoEngine aims to follow `PEP8 <http://www.python.org/dev/peps/pep-0008/>`_
-including 4 space indents and 79 character line limits.
+including 4 space indents. When possible we try to stick to 79 character line limits.
+However, screens got bigger and an ORM has a strong focus on readability and
+if it can help, we accept 119 as maximum line length, in a similar way as
+`django does <https://docs.djangoproject.com/en/dev/internals/contributing/writing-code/coding-style/#python-style>`_
 
 Testing
 -------
@@ -38,14 +41,21 @@ All tests are run on `Travis <http://travis-ci.org/MongoEngine/mongoengine>`_
 and any pull requests are automatically tested by Travis. Any pull requests
 without tests will take longer to be integrated and might be refused.
 
+You may also submit a simple failing test as a PullRequest if you don't know
+how to fix it, it will be easier for other people to work on it and it may get
+fixed faster.
+
 General Guidelines
 ------------------
 
 - Avoid backward breaking changes if at all possible.
 - Write inline documentation for new classes and methods.
 - Write tests and make sure they pass (make sure you have a mongod
-  running on the default port, then execute ``python setup.py test``
+  running on the default port, then execute ``python setup.py nosetests``
   from the cmd line to run the test suite).
+- Ensure tests pass on every Python and PyMongo versions.
+  You can test on these versions locally by executing ``tox``
+- Add enhancements or problematic bug fixes to docs/changelog.rst
 - Add yourself to AUTHORS :)
 
 Documentation

README.rst

@@ -9,6 +9,13 @@ MongoEngine
 .. image:: https://secure.travis-ci.org/MongoEngine/mongoengine.png?branch=master
   :target: http://travis-ci.org/MongoEngine/mongoengine
 
+.. image:: https://coveralls.io/repos/MongoEngine/mongoengine/badge.png?branch=master
+  :target: https://coveralls.io/r/MongoEngine/mongoengine?branch=master
+
+.. image:: https://landscape.io/github/MongoEngine/mongoengine/master/landscape.png
+   :target: https://landscape.io/github/MongoEngine/mongoengine/master
+   :alt: Code Health
+
 About
 =====
 MongoEngine is a Python Object-Document Mapper for working with MongoDB.
@@ -19,16 +26,26 @@ a `tutorial <http://readthedocs.org/docs/mongoengine-odm/en/latest/tutorial.html
 
 Installation
 ============
-If you have `setuptools <http://peak.telecommunity.com/DevCenter/setuptools>`_
+We recommend the use of `virtualenv <https://virtualenv.pypa.io/>`_ and of
+`pip <https://pip.pypa.io/>`_. You can then use ``pip install -U mongoengine``.
+You may also have `setuptools <http://peak.telecommunity.com/DevCenter/setuptools>`_ and thus
 you can use ``easy_install -U mongoengine``. Otherwise, you can download the
 source from `GitHub <http://github.com/MongoEngine/mongoengine>`_ and run ``python
 setup.py install``.
 
 Dependencies
 ============
-- pymongo 2.5+
+- pymongo>=2.7.1
 - sphinx (optional - for documentation generation)
 
+Optional Dependencies
+---------------------
+- **Image Fields**: Pillow>=2.0.0
+- dateutil>=2.1.0
+
+.. note
+   MongoEngine always runs it's test suite against the latest patch version of each dependecy. e.g.: PyMongo 3.0.1
+
 Examples
 ========
 Some simple examples of what MongoEngine code looks like::
@@ -66,7 +83,7 @@ Some simple examples of what MongoEngine code looks like::
 
     >>> len(BlogPost.objects)
     2
-    >>> len(HtmlPost.objects)
+    >>> len(TextPost.objects)
     1
     >>> len(LinkPost.objects)
     1
@@ -80,7 +97,26 @@ Some simple examples of what MongoEngine code looks like::
 Tests
 =====
 To run the test suite, ensure you are running a local instance of MongoDB on
-the standard port, and run: ``python setup.py test``.
+the standard port, and run: ``python setup.py nosetests``.
+
+To run the test suite on every supported Python version and every supported PyMongo version,
+you can use ``tox``.
+tox and each supported Python version should be installed in your environment:
+
+.. code-block:: shell
+
+    # Install tox
+    $ pip install tox
+    # Run the test suites
+    $ tox
+
+If you wish to run one single or selected tests, use the nosetest convention. It will find the folder,
+eventually the file, go to the TestClass specified after the colon and eventually right to the single test.
+Also use the -s argument if you want to print out whatever or access pdb while testing.
+
+.. code-block:: shell
+
+    $ python setup.py nosetests --tests tests/fields/fields.py:FieldTest.test_cls_field -s
 
 Community
 =========
@@ -92,4 +128,4 @@ Community
 
 Contributing
 ============
-We welcome contributions! see  the`Contribution guidelines <https://github.com/MongoEngine/mongoengine/blob/master/CONTRIBUTING.rst>`_
+We welcome contributions! see  the `Contribution guidelines <https://github.com/MongoEngine/mongoengine/blob/master/CONTRIBUTING.rst>`_

benchmark.py

@@ -15,7 +15,7 @@ def cprofile_main():
     class Noddy(Document):
         fields = DictField()
 
-    for i in xrange(1):
+    for i in range(1):
         noddy = Noddy()
         for j in range(20):
             noddy.fields["key" + str(j)] = "value " + str(j)
@@ -113,6 +113,7 @@ def main():
     4.68946313858
     ----------------------------------------------------------------------------------------------------
     """
+    print("Benchmarking...")
 
     setup = """
 from pymongo import MongoClient
@@ -127,7 +128,7 @@ connection = MongoClient()
 db = connection.timeit_test
 noddy = db.noddy
 
-for i in xrange(10000):
+for i in range(10000):
     example = {'fields': {}}
     for j in range(20):
         example['fields']["key"+str(j)] = "value "+str(j)
@@ -138,10 +139,10 @@ myNoddys = noddy.find()
 [n for n in myNoddys] # iterate
 """
 
-    print "-" * 100
-    print """Creating 10000 dictionaries - Pymongo"""
+    print("-" * 100)
+    print("""Creating 10000 dictionaries - Pymongo""")
     t = timeit.Timer(stmt=stmt, setup=setup)
-    print t.timeit(1)
+    print(t.timeit(1))
 
     stmt = """
 from pymongo import MongoClient
@@ -150,7 +151,7 @@ connection = MongoClient()
 db = connection.timeit_test
 noddy = db.noddy
 
-for i in xrange(10000):
+for i in range(10000):
     example = {'fields': {}}
     for j in range(20):
         example['fields']["key"+str(j)] = "value "+str(j)
@@ -161,10 +162,10 @@ myNoddys = noddy.find()
 [n for n in myNoddys] # iterate
 """
 
-    print "-" * 100
-    print """Creating 10000 dictionaries - Pymongo write_concern={"w": 0}"""
+    print("-" * 100)
+    print("""Creating 10000 dictionaries - Pymongo write_concern={"w": 0}""")
     t = timeit.Timer(stmt=stmt, setup=setup)
-    print t.timeit(1)
+    print(t.timeit(1))
 
     setup = """
 from pymongo import MongoClient
@@ -180,7 +181,7 @@ class Noddy(Document):
 """
 
     stmt = """
-for i in xrange(10000):
+for i in range(10000):
     noddy = Noddy()
     for j in range(20):
         noddy.fields["key"+str(j)] = "value "+str(j)
@@ -190,13 +191,13 @@ myNoddys = Noddy.objects()
 [n for n in myNoddys] # iterate
 """
 
-    print "-" * 100
-    print """Creating 10000 dictionaries - MongoEngine"""
+    print("-" * 100)
+    print("""Creating 10000 dictionaries - MongoEngine""")
     t = timeit.Timer(stmt=stmt, setup=setup)
-    print t.timeit(1)
+    print(t.timeit(1))
 
     stmt = """
-for i in xrange(10000):
+for i in range(10000):
     noddy = Noddy()
     fields = {}
     for j in range(20):
@@ -208,13 +209,13 @@ myNoddys = Noddy.objects()
 [n for n in myNoddys] # iterate
 """
 
-    print "-" * 100
-    print """Creating 10000 dictionaries without continual assign - MongoEngine"""
+    print("-" * 100)
+    print("""Creating 10000 dictionaries without continual assign - MongoEngine""")
     t = timeit.Timer(stmt=stmt, setup=setup)
-    print t.timeit(1)
+    print(t.timeit(1))
 
     stmt = """
-for i in xrange(10000):
+for i in range(10000):
     noddy = Noddy()
     for j in range(20):
         noddy.fields["key"+str(j)] = "value "+str(j)
@@ -224,13 +225,13 @@ myNoddys = Noddy.objects()
 [n for n in myNoddys] # iterate
 """
 
-    print "-" * 100
-    print """Creating 10000 dictionaries - MongoEngine - write_concern={"w": 0}, cascade = True"""
+    print("-" * 100)
+    print("""Creating 10000 dictionaries - MongoEngine - write_concern={"w": 0}, cascade = True""")
     t = timeit.Timer(stmt=stmt, setup=setup)
-    print t.timeit(1)
+    print(t.timeit(1))
 
     stmt = """
-for i in xrange(10000):
+for i in range(10000):
     noddy = Noddy()
     for j in range(20):
         noddy.fields["key"+str(j)] = "value "+str(j)
@@ -240,13 +241,13 @@ myNoddys = Noddy.objects()
 [n for n in myNoddys] # iterate
 """
 
-    print "-" * 100
-    print """Creating 10000 dictionaries - MongoEngine, write_concern={"w": 0}, validate=False, cascade=True"""
+    print("-" * 100)
+    print("""Creating 10000 dictionaries - MongoEngine, write_concern={"w": 0}, validate=False, cascade=True""")
     t = timeit.Timer(stmt=stmt, setup=setup)
-    print t.timeit(1)
+    print(t.timeit(1))
 
     stmt = """
-for i in xrange(10000):
+for i in range(10000):
     noddy = Noddy()
     for j in range(20):
         noddy.fields["key"+str(j)] = "value "+str(j)
@@ -256,13 +257,13 @@ myNoddys = Noddy.objects()
 [n for n in myNoddys] # iterate
 """
 
-    print "-" * 100
-    print """Creating 10000 dictionaries - MongoEngine, write_concern={"w": 0}, validate=False"""
+    print("-" * 100)
+    print("""Creating 10000 dictionaries - MongoEngine, write_concern={"w": 0}, validate=False""")
     t = timeit.Timer(stmt=stmt, setup=setup)
-    print t.timeit(1)
+    print(t.timeit(1))
 
     stmt = """
-for i in xrange(10000):
+for i in range(10000):
     noddy = Noddy()
     for j in range(20):
         noddy.fields["key"+str(j)] = "value "+str(j)
@@ -272,11 +273,11 @@ myNoddys = Noddy.objects()
 [n for n in myNoddys] # iterate
 """
 
-    print "-" * 100
-    print """Creating 10000 dictionaries - MongoEngine, force_insert=True, write_concern={"w": 0}, validate=False"""
+    print("-" * 100)
+    print("""Creating 10000 dictionaries - MongoEngine, force_insert=True, write_concern={"w": 0}, validate=False""")
     t = timeit.Timer(stmt=stmt, setup=setup)
-    print t.timeit(1)
+    print(t.timeit(1))
 
 
 if __name__ == "__main__":
-    main()
+    main()

docs/_themes/nature/static/nature.css_t

@@ -1,229 +0,0 @@
-/**
- * Sphinx stylesheet -- default theme
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- */
- 
-@import url("basic.css");
- 
-/* -- page layout ----------------------------------------------------------- */
- 
-body {
-    font-family: Arial, sans-serif;
-    font-size: 100%;
-    background-color: #111;
-    color: #555;
-    margin: 0;
-    padding: 0;
-}
-
-div.documentwrapper {
-    float: left;
-    width: 100%;
-}
-
-div.bodywrapper {
-    margin: 0 0 0 230px;
-}
-
-hr{
-    border: 1px solid #B1B4B6;
-}
- 
-div.document {
-    background-color: #eee;
-}
- 
-div.body {
-    background-color: #ffffff;
-    color: #3E4349;
-    padding: 0 30px 30px 30px;
-    font-size: 0.8em;
-}
- 
-div.footer {
-    color: #555;
-    width: 100%;
-    padding: 13px 0;
-    text-align: center;
-    font-size: 75%;
-}
- 
-div.footer a {
-    color: #444;
-    text-decoration: underline;
-}
- 
-div.related {
-    background-color: #6BA81E;
-    line-height: 32px;
-    color: #fff;
-    text-shadow: 0px 1px 0 #444;
-    font-size: 0.80em;
-}
- 
-div.related a {
-    color: #E2F3CC;
-}
- 
-div.sphinxsidebar {
-    font-size: 0.75em;
-    line-height: 1.5em;
-}
-
-div.sphinxsidebarwrapper{
-    padding: 20px 0;
-}
- 
-div.sphinxsidebar h3,
-div.sphinxsidebar h4 {
-    font-family: Arial, sans-serif;
-    color: #222;
-    font-size: 1.2em;
-    font-weight: normal;
-    margin: 0;
-    padding: 5px 10px;
-    background-color: #ddd;
-    text-shadow: 1px 1px 0 white
-}
-
-div.sphinxsidebar h4{
-    font-size: 1.1em;
-}
- 
-div.sphinxsidebar h3 a {
-    color: #444;
-}
- 
- 
-div.sphinxsidebar p {
-    color: #888;
-    padding: 5px 20px;
-}
- 
-div.sphinxsidebar p.topless {
-}
- 
-div.sphinxsidebar ul {
-    margin: 10px 20px;
-    padding: 0;
-    color: #000;
-}
- 
-div.sphinxsidebar a {
-    color: #444;
-}
- 
-div.sphinxsidebar input {
-    border: 1px solid #ccc;
-    font-family: sans-serif;
-    font-size: 1em;
-}
-
-div.sphinxsidebar input[type=text]{
-    margin-left: 20px;
-}
- 
-/* -- body styles ----------------------------------------------------------- */
- 
-a {
-    color: #005B81;
-    text-decoration: none;
-}
- 
-a:hover {
-    color: #E32E00;
-    text-decoration: underline;
-}
- 
-div.body h1,
-div.body h2,
-div.body h3,
-div.body h4,
-div.body h5,
-div.body h6 {
-    font-family: Arial, sans-serif;
-    background-color: #BED4EB;
-    font-weight: normal;
-    color: #212224;
-    margin: 30px 0px 10px 0px;
-    padding: 5px 0 5px 10px;
-    text-shadow: 0px 1px 0 white
-}
- 
-div.body h1 { border-top: 20px solid white; margin-top: 0; font-size: 200%; }
-div.body h2 { font-size: 150%; background-color: #C8D5E3; }
-div.body h3 { font-size: 120%; background-color: #D8DEE3; }
-div.body h4 { font-size: 110%; background-color: #D8DEE3; }
-div.body h5 { font-size: 100%; background-color: #D8DEE3; }
-div.body h6 { font-size: 100%; background-color: #D8DEE3; }
- 
-a.headerlink {
-    color: #c60f0f;
-    font-size: 0.8em;
-    padding: 0 4px 0 4px;
-    text-decoration: none;
-}
- 
-a.headerlink:hover {
-    background-color: #c60f0f;
-    color: white;
-}
- 
-div.body p, div.body dd, div.body li {
-    line-height: 1.5em;
-}
- 
-div.admonition p.admonition-title + p {
-    display: inline;
-}
-
-div.highlight{
-    background-color: white;
-}
-
-div.note {
-    background-color: #eee;
-    border: 1px solid #ccc;
-}
- 
-div.seealso {
-    background-color: #ffc;
-    border: 1px solid #ff6;
-}
- 
-div.topic {
-    background-color: #eee;
-}
- 
-div.warning {
-    background-color: #ffe4e4;
-    border: 1px solid #f66;
-}
- 
-p.admonition-title {
-    display: inline;
-}
- 
-p.admonition-title:after {
-    content: ":";
-}
- 
-pre {
-    padding: 10px;
-    background-color: White;
-    color: #222;
-    line-height: 1.2em;
-    border: 1px solid #C6C9CB;
-    font-size: 1.2em;
-    margin: 1.5em 0 1.5em 0;
-    -webkit-box-shadow: 1px 1px 1px #d8d8d8;
-    -moz-box-shadow: 1px 1px 1px #d8d8d8;
-}
- 
-tt {
-    background-color: #ecf0f3;
-    color: #222;
-    padding: 1px 2px;
-    font-size: 1.2em;
-    font-family: monospace;
-}

docs/_themes/nature/static/pygments.css

@@ -1,54 +0,0 @@
-.c { color: #999988; font-style: italic } /* Comment */
-.k { font-weight: bold } /* Keyword */
-.o { font-weight: bold } /* Operator */
-.cm { color: #999988; font-style: italic } /* Comment.Multiline */
-.cp { color: #999999; font-weight: bold } /* Comment.preproc */
-.c1 { color: #999988; font-style: italic } /* Comment.Single */
-.gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */
-.ge { font-style: italic } /* Generic.Emph */
-.gr { color: #aa0000 } /* Generic.Error */
-.gh { color: #999999 } /* Generic.Heading */
-.gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */
-.go { color: #111 } /* Generic.Output */
-.gp { color: #555555 } /* Generic.Prompt */
-.gs { font-weight: bold } /* Generic.Strong */
-.gu { color: #aaaaaa } /* Generic.Subheading */
-.gt { color: #aa0000 } /* Generic.Traceback */
-.kc { font-weight: bold } /* Keyword.Constant */
-.kd { font-weight: bold } /* Keyword.Declaration */
-.kp { font-weight: bold } /* Keyword.Pseudo */
-.kr { font-weight: bold } /* Keyword.Reserved */
-.kt { color: #445588; font-weight: bold } /* Keyword.Type */
-.m { color: #009999 } /* Literal.Number */
-.s { color: #bb8844 } /* Literal.String */
-.na { color: #008080 } /* Name.Attribute */
-.nb { color: #999999 } /* Name.Builtin */
-.nc { color: #445588; font-weight: bold } /* Name.Class */
-.no { color: #ff99ff } /* Name.Constant */
-.ni { color: #800080 } /* Name.Entity */
-.ne { color: #990000; font-weight: bold } /* Name.Exception */
-.nf { color: #990000; font-weight: bold } /* Name.Function */
-.nn { color: #555555 } /* Name.Namespace */
-.nt { color: #000080 } /* Name.Tag */
-.nv { color: purple } /* Name.Variable */
-.ow { font-weight: bold } /* Operator.Word */
-.mf { color: #009999 } /* Literal.Number.Float */
-.mh { color: #009999 } /* Literal.Number.Hex */
-.mi { color: #009999 } /* Literal.Number.Integer */
-.mo { color: #009999 } /* Literal.Number.Oct */
-.sb { color: #bb8844 } /* Literal.String.Backtick */
-.sc { color: #bb8844 } /* Literal.String.Char */
-.sd { color: #bb8844 } /* Literal.String.Doc */
-.s2 { color: #bb8844 } /* Literal.String.Double */
-.se { color: #bb8844 } /* Literal.String.Escape */
-.sh { color: #bb8844 } /* Literal.String.Heredoc */
-.si { color: #bb8844 } /* Literal.String.Interpol */
-.sx { color: #bb8844 } /* Literal.String.Other */
-.sr { color: #808000 } /* Literal.String.Regex */
-.s1 { color: #bb8844 } /* Literal.String.Single */
-.ss { color: #bb8844 } /* Literal.String.Symbol */
-.bp { color: #999999 } /* Name.Builtin.Pseudo */
-.vc { color: #ff99ff } /* Name.Variable.Class */
-.vg { color: #ff99ff } /* Name.Variable.Global */
-.vi { color: #ff99ff } /* Name.Variable.Instance */
-.il { color: #009999 } /* Literal.Number.Integer.Long */

docs/_themes/nature/theme.conf

@@ -1,4 +0,0 @@
-[theme]
-inherit = basic
-stylesheet = nature.css
-pygments_style = tango

docs/_themes/sphinx_rtd_theme/__init__.py

@@ -0,0 +1,17 @@
+"""Sphinx ReadTheDocs theme.
+
+From https://github.com/ryan-roemer/sphinx-bootstrap-theme.
+
+"""
+import os
+
+VERSION = (0, 1, 5)
+
+__version__ = ".".join(str(v) for v in VERSION)
+__version_full__ = __version__
+
+
+def get_html_theme_path():
+    """Return list of HTML theme paths."""
+    cur_dir = os.path.abspath(os.path.dirname(os.path.dirname(__file__)))
+    return cur_dir

docs/_themes/sphinx_rtd_theme/breadcrumbs.html

@@ -0,0 +1,15 @@
+<ul class="wy-breadcrumbs">
+  <li><a href="{{ pathto(master_doc) }}">Docs</a> &raquo;</li>
+  <li><a href="">{{ title }}</a></li>
+    <li class="wy-breadcrumbs-aside">
+      {% if display_github %}
+        <a href="https://github.com/{{ github_user }}/{{ github_repo }}/blob/{{ github_version }}{{ conf_py_path }}{{ pagename }}.rst" class="icon icon-github"> Edit on GitHub</a>
+      {% elif display_bitbucket %}
+        <a href="https://bitbucket.org/{{ bitbucket_user }}/{{ bitbucket_repo }}/src/{{ bitbucket_version}}{{ conf_py_path }}{{ pagename }}.rst'" class="icon icon-bitbucket"> Edit on Bitbucket</a>
+      {% elif show_source and has_source and sourcename %}
+        <a href="{{ pathto('_sources/' + sourcename, true)|e }}" rel="nofollow"> View page source</a>
+      {% endif %}
+    </li>
+</ul>
+<hr/>
+

docs/_themes/sphinx_rtd_theme/footer.html

@@ -0,0 +1,30 @@
+<footer>
+  {% if next or prev %}
+    <div class="rst-footer-buttons">
+      {% if next %}
+        <a href="{{ next.link|e }}" class="btn btn-neutral float-right" title="{{ next.title|striptags|e }}">Next <span class="icon icon-circle-arrow-right"></span></a>
+      {% endif %}
+      {% if prev %}
+        <a href="{{ prev.link|e }}" class="btn btn-neutral" title="{{ prev.title|striptags|e }}"><span class="icon icon-circle-arrow-left"></span> Previous</a>
+      {% endif %}
+    </div>
+  {% endif %}
+
+  <hr/>
+
+  <p>
+  {%- if show_copyright %}
+    {%- if hasdoc('copyright') %}
+      {% trans path=pathto('copyright'), copyright=copyright|e %}&copy; <a href="{{ path }}">Copyright</a> {{ copyright }}.{% endtrans %}
+    {%- else %}
+      {% trans copyright=copyright|e %}&copy; Copyright {{ copyright }}.{% endtrans %}
+    {%- endif %}
+  {%- endif %}
+
+  {%- if last_updated %}
+    {% trans last_updated=last_updated|e %}Last updated on {{ last_updated }}.{% endtrans %}
+  {%- endif %}
+  </p>
+
+  {% trans %}<a href="https://www.github.com/snide/sphinx_rtd_theme">Sphinx theme</a> provided by <a href="http://readthedocs.org">Read the Docs</a>{% endtrans %}
+</footer>

docs/_themes/sphinx_rtd_theme/layout.html

@@ -0,0 +1,142 @@
+{# TEMPLATE VAR SETTINGS #}
+{%- set url_root = pathto('', 1) %}
+{%- if url_root == '#' %}{% set url_root = '' %}{% endif %}
+{%- if not embedded and docstitle %}
+  {%- set titlesuffix = " — "|safe + docstitle|e %}
+{%- else %}
+  {%- set titlesuffix = "" %}
+{%- endif %}
+
+<!DOCTYPE html>
+<!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]-->
+<!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]-->
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  {% block htmltitle %}
+  <title>{{ title|striptags|e }}{{ titlesuffix }}</title>
+  {% endblock %}
+
+  {# FAVICON #}
+  {% if favicon %}
+    <link rel="shortcut icon" href="{{ pathto('_static/' + favicon, 1) }}"/>
+  {% endif %}
+  {# CANONICAL #}
+  {%- if theme_canonical_url %}
+    <link rel="canonical" href="{{ theme_canonical_url }}{{ pagename }}.html"/>
+  {%- endif %}
+
+  {# CSS #}
+  <link href='https://fonts.googleapis.com/css?family=Lato:400,700|Roboto+Slab:400,700|Inconsolata:400,700' rel='stylesheet' type='text/css'>
+
+  {# JS #}
+  {% if not embedded %}
+
+    <script type="text/javascript">
+      var DOCUMENTATION_OPTIONS = {
+        URL_ROOT:'{{ url_root }}',
+        VERSION:'{{ release|e }}',
+        COLLAPSE_INDEX:false,
+        FILE_SUFFIX:'{{ '' if no_search_suffix else file_suffix }}',
+        HAS_SOURCE:  {{ has_source|lower }}
+      };
+    </script>
+    {%- for scriptfile in script_files %}
+      <script type="text/javascript" src="{{ pathto(scriptfile, 1) }}"></script>
+    {%- endfor %}
+
+    {% if use_opensearch %}
+      <link rel="search" type="application/opensearchdescription+xml" title="{% trans docstitle=docstitle|e %}Search within {{ docstitle }}{% endtrans %}" href="{{ pathto('_static/opensearch.xml', 1) }}"/>
+    {% endif %}
+
+  {% endif %}
+
+  {# RTD hosts these file themselves, so just load on non RTD builds #}
+  {% if not READTHEDOCS %}
+    <link rel="stylesheet" href="{{ pathto('_static/' + style, 1) }}" type="text/css" />
+    <script type="text/javascript" src="_static/js/theme.js"></script>
+  {% endif %}
+
+  {% for cssfile in css_files %}
+    <link rel="stylesheet" href="{{ pathto(cssfile, 1) }}" type="text/css" />
+  {% endfor %}
+
+  {%- block linktags %}
+    {%- if hasdoc('about') %}
+        <link rel="author" title="{{ _('About these documents') }}"
+              href="{{ pathto('about') }}"/>
+    {%- endif %}
+    {%- if hasdoc('genindex') %}
+        <link rel="index" title="{{ _('Index') }}"
+              href="{{ pathto('genindex') }}"/>
+    {%- endif %}
+    {%- if hasdoc('search') %}
+        <link rel="search" title="{{ _('Search') }}" href="{{ pathto('search') }}"/>
+    {%- endif %}
+    {%- if hasdoc('copyright') %}
+        <link rel="copyright" title="{{ _('Copyright') }}" href="{{ pathto('copyright') }}"/>
+    {%- endif %}
+    <link rel="top" title="{{ docstitle|e }}" href="{{ pathto('index') }}"/>
+    {%- if parents %}
+        <link rel="up" title="{{ parents[-1].title|striptags|e }}" href="{{ parents[-1].link|e }}"/>
+    {%- endif %}
+    {%- if next %}
+        <link rel="next" title="{{ next.title|striptags|e }}" href="{{ next.link|e }}"/>
+    {%- endif %}
+    {%- if prev %}
+        <link rel="prev" title="{{ prev.title|striptags|e }}" href="{{ prev.link|e }}"/>
+    {%- endif %}
+  {%- endblock %}
+  {%- block extrahead %} {% endblock %}
+
+  <script src="//cdnjs.cloudflare.com/ajax/libs/modernizr/2.6.2/modernizr.min.js"></script>
+
+</head>
+
+<body class="wy-body-for-nav">
+
+  <div class="wy-grid-for-nav">
+
+    {# SIDE NAV, TOGGLES ON MOBILE #}
+    <nav data-toggle="wy-nav-shift" class="wy-nav-side">
+      <div class="wy-side-nav-search">
+        <a href="{{ pathto(master_doc) }}" class="icon icon-home"> {{ project }}</a>
+        {% include "searchbox.html" %}
+      </div>
+
+      <div class="wy-menu wy-menu-vertical" data-spy="affix">
+        {% set toctree = toctree(maxdepth=2, collapse=False, includehidden=True) %}
+        {% if toctree %}
+            {{ toctree }}
+        {% else %}
+            <!-- Local TOC -->
+            <div class="local-toc">{{ toc }}</div>
+        {% endif %}
+      </div>
+      &nbsp;
+    </nav>
+
+    <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap">
+
+      {# MOBILE NAV, TRIGGLES SIDE NAV ON TOGGLE #}
+      <nav class="wy-nav-top">
+        <i data-toggle="wy-nav-top" class="icon icon-reorder"></i>
+        <a href="{{ pathto(master_doc) }}">{{ project }}</a>
+      </nav>
+
+
+      {# PAGE CONTENT #}
+      <div class="wy-nav-content">
+        <div class="rst-content">
+          {% include "breadcrumbs.html" %}
+          {% block body %}{% endblock %}
+          {% include "footer.html" %}
+        </div>
+      </div>
+
+    </section>
+
+  </div>
+  {% include "versions.html" %}
+</body>
+</html>

docs/_themes/sphinx_rtd_theme/layout_old.html

@@ -0,0 +1,205 @@
+{#
+    basic/layout.html
+    ~~~~~~~~~~~~~~~~~
+
+    Master layout template for Sphinx themes.
+
+    :copyright: Copyright 2007-2013 by the Sphinx team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+#}
+{%- block doctype -%}
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+{%- endblock %}
+{%- set reldelim1 = reldelim1 is not defined and ' &raquo;' or reldelim1 %}
+{%- set reldelim2 = reldelim2 is not defined and ' |' or reldelim2 %}
+{%- set render_sidebar = (not embedded) and (not theme_nosidebar|tobool) and
+                         (sidebars != []) %}
+{%- set url_root = pathto('', 1) %}
+{# XXX necessary? #}
+{%- if url_root == '#' %}{% set url_root = '' %}{% endif %}
+{%- if not embedded and docstitle %}
+  {%- set titlesuffix = " &mdash; "|safe + docstitle|e %}
+{%- else %}
+  {%- set titlesuffix = "" %}
+{%- endif %}
+
+{%- macro relbar() %}
+    <div class="related">
+      <h3>{{ _('Navigation') }}</h3>
+      <ul>
+        {%- for rellink in rellinks %}
+        <li class="right" {% if loop.first %}style="margin-right: 10px"{% endif %}>
+          <a href="{{ pathto(rellink[0]) }}" title="{{ rellink[1]|striptags|e }}"
+             {{ accesskey(rellink[2]) }}>{{ rellink[3] }}</a>
+          {%- if not loop.first %}{{ reldelim2 }}{% endif %}</li>
+        {%- endfor %}
+        {%- block rootrellink %}
+        <li><a href="{{ pathto(master_doc) }}">{{ shorttitle|e }}</a>{{ reldelim1 }}</li>
+        {%- endblock %}
+        {%- for parent in parents %}
+          <li><a href="{{ parent.link|e }}" {% if loop.last %}{{ accesskey("U") }}{% endif %}>{{ parent.title }}</a>{{ reldelim1 }}</li>
+        {%- endfor %}
+        {%- block relbaritems %} {% endblock %}
+      </ul>
+    </div>
+{%- endmacro %}
+
+{%- macro sidebar() %}
+      {%- if render_sidebar %}
+      <div class="sphinxsidebar">
+        <div class="sphinxsidebarwrapper">
+          {%- block sidebarlogo %}
+          {%- if logo %}
+            <p class="logo"><a href="{{ pathto(master_doc) }}">
+              <img class="logo" src="{{ pathto('_static/' + logo, 1) }}" alt="Logo"/>
+            </a></p>
+          {%- endif %}
+          {%- endblock %}
+          {%- if sidebars != None %}
+            {#- new style sidebar: explicitly include/exclude templates #}
+            {%- for sidebartemplate in sidebars %}
+            {%- include sidebartemplate %}
+            {%- endfor %}
+          {%- else %}
+            {#- old style sidebars: using blocks -- should be deprecated #}
+            {%- block sidebartoc %}
+            {%- include "localtoc.html" %}
+            {%- endblock %}
+            {%- block sidebarrel %}
+            {%- include "relations.html" %}
+            {%- endblock %}
+            {%- block sidebarsourcelink %}
+            {%- include "sourcelink.html" %}
+            {%- endblock %}
+            {%- if customsidebar %}
+            {%- include customsidebar %}
+            {%- endif %}
+            {%- block sidebarsearch %}
+            {%- include "searchbox.html" %}
+            {%- endblock %}
+          {%- endif %}
+        </div>
+      </div>
+      {%- endif %}
+{%- endmacro %}
+
+{%- macro script() %}
+    <script type="text/javascript">
+      var DOCUMENTATION_OPTIONS = {
+        URL_ROOT:    '{{ url_root }}',
+        VERSION:     '{{ release|e }}',
+        COLLAPSE_INDEX: false,
+        FILE_SUFFIX: '{{ '' if no_search_suffix else file_suffix }}',
+        HAS_SOURCE:  {{ has_source|lower }}
+      };
+    </script>
+    {%- for scriptfile in script_files %}
+    <script type="text/javascript" src="{{ pathto(scriptfile, 1) }}"></script>
+    {%- endfor %}
+{%- endmacro %}
+
+{%- macro css() %}
+    <link rel="stylesheet" href="{{ pathto('_static/' + style, 1) }}" type="text/css" />
+    <link rel="stylesheet" href="{{ pathto('_static/pygments.css', 1) }}" type="text/css" />
+    {%- for cssfile in css_files %}
+    <link rel="stylesheet" href="{{ pathto(cssfile, 1) }}" type="text/css" />
+    {%- endfor %}
+{%- endmacro %}
+
+<html xmlns="http://www.w3.org/1999/xhtml">
+  <head>
+    <meta http-equiv="Content-Type" content="text/html; charset={{ encoding }}" />
+    {{ metatags }}
+    {%- block htmltitle %}
+    <title>{{ title|striptags|e }}{{ titlesuffix }}</title>
+    {%- endblock %}
+    {{ css() }}
+    {%- if not embedded %}
+    {{ script() }}
+    {%- if use_opensearch %}
+    <link rel="search" type="application/opensearchdescription+xml"
+          title="{% trans docstitle=docstitle|e %}Search within {{ docstitle }}{% endtrans %}"
+          href="{{ pathto('_static/opensearch.xml', 1) }}"/>
+    {%- endif %}
+    {%- if favicon %}
+    <link rel="shortcut icon" href="{{ pathto('_static/' + favicon, 1) }}"/>
+    {%- endif %}
+    {%- endif %}
+{%- block linktags %}
+    {%- if hasdoc('about') %}
+    <link rel="author" title="{{ _('About these documents') }}" href="{{ pathto('about') }}" />
+    {%- endif %}
+    {%- if hasdoc('genindex') %}
+    <link rel="index" title="{{ _('Index') }}" href="{{ pathto('genindex') }}" />
+    {%- endif %}
+    {%- if hasdoc('search') %}
+    <link rel="search" title="{{ _('Search') }}" href="{{ pathto('search') }}" />
+    {%- endif %}
+    {%- if hasdoc('copyright') %}
+    <link rel="copyright" title="{{ _('Copyright') }}" href="{{ pathto('copyright') }}" />
+    {%- endif %}
+    <link rel="top" title="{{ docstitle|e }}" href="{{ pathto('index') }}" />
+    {%- if parents %}
+    <link rel="up" title="{{ parents[-1].title|striptags|e }}" href="{{ parents[-1].link|e }}" />
+    {%- endif %}
+    {%- if next %}
+    <link rel="next" title="{{ next.title|striptags|e }}" href="{{ next.link|e }}" />
+    {%- endif %}
+    {%- if prev %}
+    <link rel="prev" title="{{ prev.title|striptags|e }}" href="{{ prev.link|e }}" />
+    {%- endif %}
+{%- endblock %}
+{%- block extrahead %} {% endblock %}
+  </head>
+  <body>
+{%- block header %}{% endblock %}
+
+{%- block relbar1 %}{{ relbar() }}{% endblock %}
+
+{%- block content %}
+  {%- block sidebar1 %} {# possible location for sidebar #} {% endblock %}
+
+    <div class="document">
+  {%- block document %}
+      <div class="documentwrapper">
+      {%- if render_sidebar %}
+        <div class="bodywrapper">
+      {%- endif %}
+          <div class="body">
+            {% block body %} {% endblock %}
+          </div>
+      {%- if render_sidebar %}
+        </div>
+      {%- endif %}
+      </div>
+  {%- endblock %}
+
+  {%- block sidebar2 %}{{ sidebar() }}{% endblock %}
+      <div class="clearer"></div>
+    </div>
+{%- endblock %}
+
+{%- block relbar2 %}{{ relbar() }}{% endblock %}
+
+{%- block footer %}
+    <div class="footer">
+    {%- if show_copyright %}
+      {%- if hasdoc('copyright') %}
+        {% trans path=pathto('copyright'), copyright=copyright|e %}&copy; <a href="{{ path }}">Copyright</a> {{ copyright }}.{% endtrans %}
+      {%- else %}
+        {% trans copyright=copyright|e %}&copy; Copyright {{ copyright }}.{% endtrans %}
+      {%- endif %}
+    {%- endif %}
+    {%- if last_updated %}
+      {% trans last_updated=last_updated|e %}Last updated on {{ last_updated }}.{% endtrans %}
+    {%- endif %}
+    {%- if show_sphinx %}
+      {% trans sphinx_version=sphinx_version|e %}Created using <a href="http://sphinx-doc.org/">Sphinx</a> {{ sphinx_version }}.{% endtrans %}
+    {%- endif %}
+    </div>
+    <p>asdf asdf asdf asdf 22</p>
+{%- endblock %}
+  </body>
+</html>
+

docs/_themes/sphinx_rtd_theme/search.html

@@ -0,0 +1,50 @@
+{#
+    basic/search.html
+    ~~~~~~~~~~~~~~~~~
+
+    Template for the search page.
+
+    :copyright: Copyright 2007-2013 by the Sphinx team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+#}
+{%- extends "layout.html" %}
+{% set title = _('Search') %}
+{% set script_files = script_files + ['_static/searchtools.js'] %}
+{% block extrahead %}
+  <script type="text/javascript">
+    jQuery(function() { Search.loadIndex("{{ pathto('searchindex.js', 1) }}"); });
+  </script>
+  {# this is used when loading the search index using $.ajax fails,
+     such as on Chrome for documents on localhost #}
+  <script type="text/javascript" id="searchindexloader"></script>
+  {{ super() }}
+{% endblock %}
+{% block body %}
+  <noscript>
+  <div id="fallback" class="admonition warning">
+    <p class="last">
+      {% trans %}Please activate JavaScript to enable the search
+      functionality.{% endtrans %}
+    </p>
+  </div>
+  </noscript>
+
+  {% if search_performed %}
+    <h2>{{ _('Search Results') }}</h2>
+    {% if not search_results %}
+      <p>{{ _('Your search did not match any documents. Please make sure that all words are spelled correctly and that you\'ve selected enough categories.') }}</p>
+    {% endif %}
+  {% endif %}
+  <div id="search-results">
+  {% if search_results %}
+    <ul>
+    {% for href, caption, context in search_results %}
+      <li>
+        <a href="{{ pathto(item.href) }}">{{ caption }}</a>
+        <p class="context">{{ context|e }}</p>
+      </li>
+    {% endfor %}
+    </ul>
+  {% endif %}
+  </div>
+{% endblock %}

docs/_themes/sphinx_rtd_theme/searchbox.html

@@ -0,0 +1,5 @@
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docs/_themes/sphinx_rtd_theme/static/js/theme.js

@@ -0,0 +1,16 @@
+$( document ).ready(function() {
+  // Shift nav in mobile when clicking the menu.
+  $("[data-toggle='wy-nav-top']").click(function() {
+    $("[data-toggle='wy-nav-shift']").toggleClass("shift");
+    $("[data-toggle='rst-versions']").toggleClass("shift");
+  });
+  // Close menu when you click a link.
+  $(".wy-menu-vertical .current ul li a").click(function() {
+    $("[data-toggle='wy-nav-shift']").removeClass("shift");
+    $("[data-toggle='rst-versions']").toggleClass("shift");
+  });
+  $("[data-toggle='rst-current-version']").click(function() {
+    $("[data-toggle='rst-versions']").toggleClass("shift-up");
+  });
+  $("table.docutils:not(.field-list").wrap("<div class='wy-table-responsive'></div>");
+});

docs/_themes/sphinx_rtd_theme/theme.conf

@@ -0,0 +1,8 @@
+[theme]
+inherit = basic
+stylesheet = css/theme.css
+
+[options]
+typekit_id = hiw1hhg
+analytics_id =
+canonical_url =

docs/_themes/sphinx_rtd_theme/versions.html

@@ -0,0 +1,37 @@
+{% if READTHEDOCS %}
+{# Add rst-badge after rst-versions for small badge style. #}
+  <div class="rst-versions" data-toggle="rst-versions">
+    <span class="rst-current-version" data-toggle="rst-current-version">
+      <span class="icon icon-book"> Read the Docs</span>
+      v: {{ current_version }} 
+      <span class="icon icon-caret-down"></span>
+    </span>
+    <div class="rst-other-versions">
+      <dl>
+        <dt>Versions</dt>
+        {% for slug, url in versions %}
+          <dd><a href="{{ url }}">{{ slug }}</a></dd>
+        {% endfor %}
+      </dl>
+      <dl>
+        <dt>Downloads</dt>
+        {% for type, url in downloads %}
+          <dd><a href="{{ url }}">{{ type }}</a></dd>
+        {% endfor %}
+      </dl>
+      <dl>
+        <dt>On Read the Docs</dt>
+          <dd>
+            <a href="//{{ PRODUCTION_DOMAIN }}/projects/{{ slug }}/?fromdocs={{ slug }}">Project Home</a>
+          </dd>
+          <dd>
+            <a href="//{{ PRODUCTION_DOMAIN }}/builds/{{ slug }}/?fromdocs={{ slug }}">Builds</a>
+          </dd>
+      </dl>
+      <hr/>
+      Free document hosting provided by <a href="http://www.readthedocs.org">Read the Docs</a>.
+
+    </div>
+  </div>
+{% endif %}
+

docs/apireference.rst

@@ -34,26 +34,40 @@ Documents
 .. autoclass:: mongoengine.ValidationError
   :members:
 
+.. autoclass:: mongoengine.FieldDoesNotExist
+
+
 Context Managers
 ================
 
 .. autoclass:: mongoengine.context_managers.switch_db
+.. autoclass:: mongoengine.context_managers.switch_collection
 .. autoclass:: mongoengine.context_managers.no_dereference
 .. autoclass:: mongoengine.context_managers.query_counter
 
 Querying
 ========
 
-.. autoclass:: mongoengine.queryset.QuerySet
-   :members:
+.. automodule:: mongoengine.queryset
+    :synopsis: Queryset level operations
 
-   .. automethod:: mongoengine.queryset.QuerySet.__call__
+    .. autoclass:: mongoengine.queryset.QuerySet
+      :members:
+      :inherited-members:
 
-.. autofunction:: mongoengine.queryset.queryset_manager
+      .. automethod:: QuerySet.__call__
+
+    .. autoclass:: mongoengine.queryset.QuerySetNoCache
+      :members:
+
+       .. automethod:: mongoengine.queryset.QuerySetNoCache.__call__
+
+    .. autofunction:: mongoengine.queryset.queryset_manager
 
 Fields
 ======
 
+.. autoclass:: mongoengine.base.fields.BaseField
 .. autoclass:: mongoengine.fields.StringField
 .. autoclass:: mongoengine.fields.URLField
 .. autoclass:: mongoengine.fields.EmailField
@@ -68,11 +82,13 @@ Fields
 .. autoclass:: mongoengine.fields.GenericEmbeddedDocumentField
 .. autoclass:: mongoengine.fields.DynamicField
 .. autoclass:: mongoengine.fields.ListField
+.. autoclass:: mongoengine.fields.EmbeddedDocumentListField
 .. autoclass:: mongoengine.fields.SortedListField
 .. autoclass:: mongoengine.fields.DictField
 .. autoclass:: mongoengine.fields.MapField
 .. autoclass:: mongoengine.fields.ReferenceField
 .. autoclass:: mongoengine.fields.GenericReferenceField
+.. autoclass:: mongoengine.fields.CachedReferenceField
 .. autoclass:: mongoengine.fields.BinaryField
 .. autoclass:: mongoengine.fields.FileField
 .. autoclass:: mongoengine.fields.ImageField
@@ -83,7 +99,30 @@ Fields
 .. autoclass:: mongoengine.fields.PointField
 .. autoclass:: mongoengine.fields.LineStringField
 .. autoclass:: mongoengine.fields.PolygonField
+.. autoclass:: mongoengine.fields.MultiPointField
+.. autoclass:: mongoengine.fields.MultiLineStringField
+.. autoclass:: mongoengine.fields.MultiPolygonField
 .. autoclass:: mongoengine.fields.GridFSError
 .. autoclass:: mongoengine.fields.GridFSProxy
 .. autoclass:: mongoengine.fields.ImageGridFsProxy
 .. autoclass:: mongoengine.fields.ImproperlyConfigured
+
+Embedded Document Querying
+==========================
+
+.. versionadded:: 0.9
+
+Additional queries for Embedded Documents are available when using the
+:class:`~mongoengine.EmbeddedDocumentListField` to store a list of embedded
+documents.
+
+A list of embedded documents is returned as a special list with the
+following methods:
+
+.. autoclass:: mongoengine.base.datastructures.EmbeddedDocumentList
+    :members:
+
+Misc
+====
+
+.. autofunction:: mongoengine.common._import_class

docs/changelog.rst

@@ -2,6 +2,223 @@
 Changelog
 =========
 
+Changes in 0.10.1
+=======================
+- Fix infinite recursion with CASCADE delete rules under specific conditions. #1046
+- Fix CachedReferenceField bug when loading cached docs as DBRef but failing to save them. #1047
+- Fix ignored chained options #842
+- Document save's save_condition error raises `SaveConditionError` exception #1070
+- Fix Document.reload for DynamicDocument. #1050
+- StrictDict & SemiStrictDict are shadowed at init time. #1105
+- Remove test dependencies (nose and rednose) from install dependencies list. #1079
+- Recursively build query when using elemMatch operator. #1130
+- Fix instance back references for lists of embedded documents. #1131
+
+Changes in 0.10.0
+=================
+- Django support was removed and will be available as a separate extension. #958
+- Allow to load undeclared field with meta attribute 'strict': False #957
+- Support for PyMongo 3+ #946
+- Removed get_or_create() deprecated since 0.8.0. #300
+- Improve Document._created status when switch collection and db #1020
+- Queryset update doesn't go through field validation #453
+- Added support for specifying authentication source as option `authSource` in URI. #967
+- Fixed mark_as_changed to handle higher/lower level fields changed. #927
+- ListField of embedded docs doesn't set the _instance attribute when iterating over it #914
+- Support += and *= for ListField #595
+- Use sets for populating dbrefs to dereference
+- Fixed unpickled documents replacing the global field's list. #888
+- Fixed storage of microseconds in ComplexDateTimeField and unused separator option. #910
+- Don't send a "cls" option to ensureIndex (related to https://jira.mongodb.org/browse/SERVER-769)
+- Fix for updating sorting in SortedListField. #978
+- Added __ support to escape field name in fields lookup keywords that match operators names #949
+- Fix for issue where FileField deletion did not free space in GridFS.
+- No_dereference() not respected on embedded docs containing reference. #517
+- Document save raise an exception if save_condition fails #1005
+- Fixes some internal _id handling issue. #961
+- Updated URL and Email Field regex validators, added schemes argument to URLField validation. #652
+- Capped collection multiple of 256. #1011
+- Added `BaseQuerySet.aggregate_sum` and `BaseQuerySet.aggregate_average` methods.
+- Fix for delete with write_concern {'w': 0}. #1008
+- Allow dynamic lookup for more than two parts. #882
+- Added support for min_distance on geo queries. #831
+- Allow to add custom metadata to fields #705
+
+Changes in 0.9.0
+================
+- Update FileField when creating a new file #714
+- Added `EmbeddedDocumentListField` for Lists of Embedded Documents. #826
+- ComplexDateTimeField should fall back to None when null=True #864
+- Request Support for $min, $max Field update operators #863
+- `BaseDict` does not follow `setdefault` #866
+- Add support for $type operator # 766
+- Fix tests for pymongo 2.8+ #877
+- No module named 'django.utils.importlib' (Django dev) #872
+- Field Choices Now Accept Subclasses of Documents
+- Ensure Indexes before Each Save #812
+- Generate Unique Indices for Lists of EmbeddedDocuments #358
+- Sparse fields #515
+- write_concern not in params of Collection#remove #801
+- Better BaseDocument equality check when not saved #798
+- OperationError: Shard Keys are immutable. Tried to update id even though the document is not yet saved #771
+- with_limit_and_skip for count should default like in pymongo #759
+- Fix storing value of precision attribute in DecimalField #787
+- Set attribute to None does not work (at least for fields with default values) #734
+- Querying by a field defined in a subclass raises InvalidQueryError #744
+- Add Support For MongoDB 2.6.X's maxTimeMS #778
+- abstract shouldn't be inherited in EmbeddedDocument # 789
+- Allow specifying the '_cls' as a field for indexes #397
+- Stop ensure_indexes running on a secondaries unless connection is through mongos #746
+- Not overriding default values when loading a subset of fields #399
+- Saving document doesn't create new fields in existing collection #620
+- Added `Queryset.aggregate` wrapper to aggregation framework #703
+- Added support to show original model fields on to_json calls instead of db_field #697
+- Added Queryset.search_text to Text indexes searchs #700
+- Fixed tests for Django 1.7 #696
+- Follow ReferenceFields in EmbeddedDocuments with select_related #690
+- Added preliminary support for text indexes #680
+- Added `elemMatch` operator as well - `match` is too obscure #653
+- Added support for progressive JPEG #486 #548
+- Allow strings to be used in index creation #675
+- Fixed EmbeddedDoc weakref proxy issue #592
+- Fixed nested reference field distinct error #583
+- Fixed change tracking on nested MapFields #539
+- Dynamic fields in embedded documents now visible to queryset.only() / qs.exclude() #425 #507
+- Add authentication_source option to register_connection #178 #464 #573 #580 #590
+- Implemented equality between Documents and DBRefs #597
+- Fixed ReferenceField inside nested ListFields dereferencing problem #368
+- Added the ability to reload specific document fields #100
+- Added db_alias support and fixes for custom map/reduce output #586
+- post_save signal now has access to delta information about field changes #594 #589
+- Don't query with $orderby for qs.get() #600
+- Fix id shard key save issue #636
+- Fixes issue with recursive embedded document errors #557
+- Fix clear_changed_fields() clearing unsaved documents bug #602
+- Removing support for Django 1.4.x, pymongo 2.5.x, pymongo 2.6.x.
+- Removing support for Python < 2.6.6
+- Fixed $maxDistance location for geoJSON $near queries with MongoDB 2.6+ #664
+- QuerySet.modify() and Document.modify() methods to provide find_and_modify() like behaviour #677 #773
+- Added support for the using() method on a queryset #676
+- PYPY support #673
+- Connection pooling #674
+- Avoid to open all documents from cursors in an if stmt #655
+- Ability to clear the ordering #657
+- Raise NotUniqueError in Document.update() on pymongo.errors.DuplicateKeyError #626
+- Slots - memory improvements #625
+- Fixed incorrectly split a query key when it ends with "_" #619
+- Geo docs updates #613
+- Workaround a dateutil bug #608
+- Conditional save for atomic-style operations #511
+- Allow dynamic dictionary-style field access #559
+- Increase email field length to accommodate new TLDs #726
+- index_cls is ignored when deciding to set _cls as index prefix #733
+- Make 'db' argument to connection optional #737
+- Allow atomic update for the entire `DictField` #742
+- Added MultiPointField, MultiLineField, MultiPolygonField
+- Fix multiple connections aliases being rewritten #748
+- Fixed a few instances where reverse_delete_rule was written as reverse_delete_rules. #791
+- Make `in_bulk()` respect `no_dereference()` #775
+- Handle None from model __str__; Fixes #753 #754
+- _get_changed_fields fix for embedded documents with id field. #925
+
+Changes in 0.8.7
+================
+- Calling reload on deleted / nonexistent documents raises DoesNotExist (#538)
+- Stop ensure_indexes running on a secondaries (#555)
+- Fix circular import issue with django auth (#531) (#545)
+
+Changes in 0.8.6
+================
+- Fix django auth import (#531)
+
+Changes in 0.8.5
+================
+- Fix multi level nested fields getting marked as changed (#523)
+- Django 1.6 login fix (#522) (#527)
+- Django 1.6 session fix (#509)
+- EmbeddedDocument._instance is now set when setting the attribute (#506)
+- Fixed EmbeddedDocument with ReferenceField equality issue (#502)
+- Fixed GenericReferenceField serialization order (#499)
+- Fixed count and none bug (#498)
+- Fixed bug with .only() and DictField with digit keys (#496)
+- Added user_permissions to Django User object (#491, #492)
+- Fix updating Geo Location fields (#488)
+- Fix handling invalid dict field value (#485)
+- Added app_label to MongoUser (#484)
+- Use defaults when host and port are passed as None (#483)
+- Fixed distinct casting issue with ListField of EmbeddedDocuments (#470)
+- Fixed Django 1.6 sessions (#454, #480)
+
+Changes in 0.8.4
+================
+- Remove database name necessity in uri connection schema (#452)
+- Fixed "$pull" semantics for nested ListFields (#447)
+- Allow fields to be named the same as query operators (#445)
+- Updated field filter logic - can now exclude subclass fields (#443)
+- Fixed dereference issue with embedded listfield referencefields (#439)
+- Fixed slice when using inheritance causing fields to be excluded (#437)
+- Fixed ._get_db() attribute after a Document.switch_db() (#441)
+- Dynamic Fields store and recompose Embedded Documents / Documents correctly (#449)
+- Handle dynamic fieldnames that look like digits (#434)
+- Added get_user_document and improve mongo_auth module (#423)
+- Added str representation of GridFSProxy (#424)
+- Update transform to handle docs erroneously passed to unset (#416)
+- Fixed indexing - turn off _cls (#414)
+- Fixed dereference threading issue in ComplexField.__get__ (#412)
+- Fixed QuerySetNoCache.count() caching (#410)
+- Don't follow references in _get_changed_fields (#422, #417)
+- Allow args and kwargs to be passed through to_json (#420)
+
+Changes in 0.8.3
+================
+- Fixed EmbeddedDocuments with `id` also storing `_id` (#402)
+- Added get_proxy_object helper to filefields (#391)
+- Added QuerySetNoCache and QuerySet.no_cache() for lower memory consumption (#365)
+- Fixed sum and average mapreduce dot notation support (#375, #376, #393)
+- Fixed as_pymongo to return the id (#386)
+- Document.select_related() now respects `db_alias` (#377)
+- Reload uses shard_key if applicable (#384)
+- Dynamic fields are ordered based on creation and stored in _fields_ordered (#396)
+
+  **Potential breaking change:** http://docs.mongoengine.org/en/latest/upgrade.html#to-0-8-3
+
+- Fixed pickling dynamic documents `_dynamic_fields` (#387)
+- Fixed ListField setslice and delslice dirty tracking (#390)
+- Added Django 1.5 PY3 support (#392)
+- Added match ($elemMatch) support for EmbeddedDocuments (#379)
+- Fixed weakref being valid after reload (#374)
+- Fixed queryset.get() respecting no_dereference (#373)
+- Added full_result kwarg to update (#380)
+
+
+
+Changes in 0.8.2
+================
+- Added compare_indexes helper (#361)
+- Fixed cascading saves which weren't turned off as planned (#291)
+- Fixed Datastructures so instances are a Document or EmbeddedDocument (#363)
+- Improved cascading saves write performance (#361)
+- Fixed ambiguity and differing behaviour regarding field defaults (#349)
+- ImageFields now include PIL error messages if invalid error (#353)
+- Added lock when calling doc.Delete() for when signals have no sender (#350)
+- Reload forces read preference to be PRIMARY (#355)
+- Querysets are now lest restrictive when querying duplicate fields (#332, #333)
+- FileField now honouring db_alias (#341)
+- Removed customised __set__ change tracking in ComplexBaseField (#344)
+- Removed unused var in _get_changed_fields (#347)
+- Added pre_save_post_validation signal (#345)
+- DateTimeField now auto converts valid datetime isostrings into dates (#343)
+- DateTimeField now uses dateutil for parsing if available (#343)
+- Fixed Doc.objects(read_preference=X) not setting read preference (#352)
+- Django session ttl index expiry fixed (#329)
+- Fixed pickle.loads (#342)
+- Documentation fixes
+
+Changes in 0.8.1
+================
+- Fixed Python 2.6 django auth importlib issue (#326)
+- Fixed pickle unsaved document regression (#327)
+
 Changes in 0.8.0
 ================
 - Fixed querying ReferenceField custom_id (#317)
@@ -9,7 +226,7 @@ Changes in 0.8.0
 - Added `get_next_value` preview for SequenceFields (#319)
 - Added no_sub_classes context manager and queryset helper (#312)
 - Querysets now utilises a local cache
-- Changed __len__ behavour in the queryset (#247, #311)
+- Changed __len__ behaviour in the queryset (#247, #311)
 - Fixed querying string versions of ObjectIds issue with ReferenceField (#307)
 - Added $setOnInsert support for upserts (#308)
 - Upserts now possible with just query parameters (#309)
@@ -60,7 +277,7 @@ Changes in 0.8.0
 - Uses getlasterror to test created on updated saves (#163)
 - Fixed inheritance and unique index creation (#140)
 - Fixed reverse delete rule with inheritance (#197)
-- Fixed validation for GenericReferences which havent been dereferenced
+- Fixed validation for GenericReferences which haven't been dereferenced
 - Added switch_db context manager (#106)
 - Added switch_db method to document instances (#106)
 - Added no_dereference context manager (#82) (#61)
@@ -142,11 +359,11 @@ Changes in 0.7.2
 - Update index spec generation so its not destructive (#113)
 
 Changes in 0.7.1
-=================
+================
 - Fixed index spec inheritance (#111)
 
 Changes in 0.7.0
-=================
+================
 - Updated queryset.delete so you can use with skip / limit (#107)
 - Updated index creation allows kwargs to be passed through refs (#104)
 - Fixed Q object merge edge case (#109)
@@ -227,7 +444,7 @@ Changes in 0.6.12
 - Fixes error with _delta handling DBRefs
 
 Changes in 0.6.11
-==================
+=================
 - Fixed inconsistency handling None values field attrs
 - Fixed map_field embedded db_field issue
 - Fixed .save() _delta issue with DbRefs
@@ -307,7 +524,7 @@ Changes in 0.6.1
 - Fix for replicaSet connections
 
 Changes in 0.6
-================
+==============
 
 - Added FutureWarning to inherited classes not declaring 'allow_inheritance' as the default will change in 0.7
 - Added support for covered indexes when inheritance is off
@@ -395,8 +612,8 @@ Changes in v0.5
 - Updated default collection naming convention
 - Added Document Mixin support
 - Fixed queryet __repr__ mid iteration
-- Added hint() support, so cantell Mongo the proper index to use for the query
-- Fixed issue with inconsitent setting of _cls breaking inherited referencing
+- Added hint() support, so can tell Mongo the proper index to use for the query
+- Fixed issue with inconsistent setting of _cls breaking inherited referencing
 - Added help_text and verbose_name to fields to help with some form libs
 - Updated item_frequencies to handle embedded document lookups
 - Added delta tracking now only sets / unsets explicitly changed fields

docs/conf.py

@@ -92,7 +92,7 @@ pygments_style = 'sphinx'
 
 # The theme to use for HTML and HTML Help pages.  Major themes that come with
 # Sphinx are currently 'default' and 'sphinxdoc'.
-html_theme = 'nature'
+html_theme = 'sphinx_rtd_theme'
 
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the
@@ -116,7 +116,7 @@ html_theme_path = ['_themes']
 # The name of an image file (within the static path) to use as favicon of the
 # docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
 # pixels large.
-#html_favicon = None
+html_favicon = "favicon.ico"
 
 # Add any paths that contain custom static files (such as style sheets) here,
 # relative to this directory. They are copied after the builtin static files,
@@ -200,3 +200,6 @@ latex_documents = [
 
 autoclass_content = 'both'
 
+html_theme_options = dict(
+    canonical_url='http://docs.mongoengine.org/en/latest/'
+)

docs/django.rst

@@ -2,138 +2,18 @@
 Django Support
 ==============
 
-.. note:: Updated to support Django 1.5
+.. note:: Django support has been split from the main MongoEngine
+    repository. The *legacy* Django extension may be found bundled with the
+    0.9 release of MongoEngine.
 
-Connecting
-==========
-In your **settings.py** file, ignore the standard database settings (unless you
-also plan to use the ORM in your project), and instead call
-:func:`~mongoengine.connect` somewhere in the settings module.
 
-.. note::
-   If you are not using another Database backend you may need to add a dummy
-   database backend to ``settings.py`` eg::
 
-        DATABASES = {
-            'default': {
-                'ENGINE': 'django.db.backends.dummy'
-            }
-        }
+Help Wanted!
+------------
 
-Authentication
-==============
-MongoEngine includes a Django authentication backend, which uses MongoDB. The
-:class:`~mongoengine.django.auth.User` model is a MongoEngine
-:class:`~mongoengine.Document`, but implements most of the methods and
-attributes that the standard Django :class:`User` model does - so the two are
-moderately compatible. Using this backend will allow you to store users in
-MongoDB but still use many of the Django authentication infrastucture (such as
-the :func:`login_required` decorator and the :func:`authenticate` function). To
-enable the MongoEngine auth backend, add the following to you **settings.py**
-file::
-
-    AUTHENTICATION_BACKENDS = (
-        'mongoengine.django.auth.MongoEngineBackend',
-    )
-
-The :mod:`~mongoengine.django.auth` module also contains a
-:func:`~mongoengine.django.auth.get_user` helper function, that takes a user's
-:attr:`id` and returns a :class:`~mongoengine.django.auth.User` object.
-
-.. versionadded:: 0.1.3
-
-Custom User model
-=================
-Django 1.5 introduced `Custom user Models
-<https://docs.djangoproject.com/en/dev/topics/auth/customizing/#auth-custom-user>`
-which can be used as an alternative the Mongoengine authentication backend.
-
-The main advantage of this option is that other components relying on
-:mod:`django.contrib.auth` and supporting the new swappable user model are more
-likely to work. For example, you can use the ``createsuperuser`` management
-command as usual.
-
-To enable the custom User model in Django, add ``'mongoengine.django.mongo_auth'``
-in your ``INSTALLED_APPS`` and set ``'mongo_auth.MongoUser'`` as the custom user
-user model to use. In your **settings.py** file you will have::
-
-    INSTALLED_APPS = (
-        ...
-        'django.contrib.auth',
-        'mongoengine.django.mongo_auth',
-        ...
-    )
-
-    AUTH_USER_MODEL = 'mongo_auth.MongoUser'
-
-An additional ``MONGOENGINE_USER_DOCUMENT`` setting enables you to replace the
-:class:`~mongoengine.django.auth.User` class with another class of your choice::
-
-    MONGOENGINE_USER_DOCUMENT = 'mongoengine.django.auth.User'
-
-The custom :class:`User` must be a :class:`~mongoengine.Document` class, but
-otherwise has the same requirements as a standard custom user model,
-as specified in the `Django Documentation
-<https://docs.djangoproject.com/en/dev/topics/auth/customizing/>`.
-In particular, the custom class must define :attr:`USERNAME_FIELD` and
-:attr:`REQUIRED_FIELDS` attributes.
-
-Sessions
-========
-Django allows the use of different backend stores for its sessions. MongoEngine
-provides a MongoDB-based session backend for Django, which allows you to use
-sessions in you Django application with just MongoDB. To enable the MongoEngine
-session backend, ensure that your settings module has
-``'django.contrib.sessions.middleware.SessionMiddleware'`` in the
-``MIDDLEWARE_CLASSES`` field  and ``'django.contrib.sessions'`` in your
-``INSTALLED_APPS``. From there, all you need to do is add the following line
-into you settings module::
-
-    SESSION_ENGINE = 'mongoengine.django.sessions'
-
-Django provides session cookie, which expires after ```SESSION_COOKIE_AGE``` seconds, but doesnt delete cookie at sessions backend, so ``'mongoengine.django.sessions'`` supports  `mongodb TTL
-<http://docs.mongodb.org/manual/tutorial/expire-data/>`_.
-
-.. versionadded:: 0.2.1
-
-Storage
-=======
-With MongoEngine's support for GridFS via the :class:`~mongoengine.fields.FileField`,
-it is useful to have a Django file storage backend that wraps this. The new
-storage module is called :class:`~mongoengine.django.storage.GridFSStorage`.
-Using it is very similar to using the default FileSystemStorage.::
-
-    from mongoengine.django.storage import GridFSStorage
-    fs = GridFSStorage()
-
-    filename = fs.save('hello.txt', 'Hello, World!')
-
-All of the `Django Storage API methods
-<http://docs.djangoproject.com/en/dev/ref/files/storage/>`_ have been
-implemented except :func:`path`. If the filename provided already exists, an
-underscore and a number (before # the file extension, if one exists) will be
-appended to the filename until the generated filename doesn't exist. The
-:func:`save` method will return the new filename.::
-
-    >>> fs.exists('hello.txt')
-    True
-    >>> fs.open('hello.txt').read()
-    'Hello, World!'
-    >>> fs.size('hello.txt')
-    13
-    >>> fs.url('hello.txt')
-    'http://your_media_url/hello.txt'
-    >>> fs.open('hello.txt').name
-    'hello.txt'
-    >>> fs.listdir()
-    ([], [u'hello.txt'])
-
-All files will be saved and retrieved in GridFS via the :class::`FileDocument`
-document, allowing easy access to the files without the GridFSStorage
-backend.::
-
-    >>> from mongoengine.django.storage import FileDocument
-    >>> FileDocument.objects()
-    [<FileDocument: FileDocument object>]
-
-.. versionadded:: 0.4
+The MongoEngine team is looking for help contributing and maintaining a new
+Django extension for MongoEngine! If you have Django experience and would like
+to help contribute to the project, please get in touch on the 
+`mailing list <http://groups.google.com/group/mongoengine-users>`_ or by 
+simply contributing on
+`GitHub <https://github.com/MongoEngine/django-mongoengine>`_.

docs/guide/connecting.rst

@@ -23,20 +23,34 @@ arguments should be provided::
 
     connect('project1', username='webapp', password='pwd123')
 
-Uri style connections are also supported as long as you include the database
-name - just supply the uri as the :attr:`host` to
+URI style connections are also supported -- just supply the URI as
+the :attr:`host` to
 :func:`~mongoengine.connect`::
 
     connect('project1', host='mongodb://localhost/database_name')
 
+.. note:: Database, username and password from URI string overrides
+    corresponding parameters in :func:`~mongoengine.connect`: ::
+
+        connect(
+            name='test',
+            username='user',
+            password='12345',
+            host='mongodb://admin:qwerty@localhost/production'
+        )
+
+    will establish connection to ``production`` database using
+    ``admin`` username and ``qwerty`` password.
+
 ReplicaSets
 ===========
 
-MongoEngine supports :class:`~pymongo.mongo_replica_set_client.MongoReplicaSetClient`
-to use them please use a URI style connection and provide the `replicaSet` name in the
-connection kwargs.
+MongoEngine supports
+:class:`~pymongo.mongo_replica_set_client.MongoReplicaSetClient`. To use them,
+please use an URI style connection and provide the ``replicaSet`` name
+in the connection kwargs.
 
-Read preferences are supported throught the connection or via individual
+Read preferences are supported through the connection or via individual
 queries by passing the read_preference ::
 
     Bar.objects().read_preference(ReadPreference.PRIMARY)
@@ -74,26 +88,49 @@ to point across databases and collections.  Below is an example schema, using
             meta = {"db_alias": "users-books-db"}
 
 
-Switch Database Context Manager
-===============================
-
-Sometimes you may want to switch the database to query against for a class
-for example, archiving older data into a separate database for performance
-reasons.
+Context Managers
+================
+Sometimes you may want to switch the database or collection to query against
+for a class.
+For example, archiving older data into a separate database for performance
+reasons or writing functions that dynamically choose collections to write
+document to.
 
+Switch Database
+---------------
 The :class:`~mongoengine.context_managers.switch_db` context manager allows
 you to change the database alias for a given class allowing quick and easy
-access to the same User document across databases.eg ::
+access the same User document across databases::
 
-        from mongoengine.context_managers import switch_db
+    from mongoengine.context_managers import switch_db
 
-        class User(Document):
+    class User(Document):
+        name = StringField()
+
+        meta = {"db_alias": "user-db"}
+
+    with switch_db(User, 'archive-user-db') as User:
+        User(name="Ross").save()  # Saves the 'archive-user-db'
+
+
+Switch Collection
+-----------------
+The :class:`~mongoengine.context_managers.switch_collection` context manager
+allows you to change the collection for a given class allowing quick and easy
+access the same Group document across collection::
+
+        from mongoengine.context_managers import switch_collection
+
+        class Group(Document):
             name = StringField()
 
-            meta = {"db_alias": "user-db"}
+        Group(name="test").save()  # Saves in the default db
+
+        with switch_collection(Group, 'group2000') as Group:
+            Group(name="hello Group 2000 collection!").save()  # Saves in group2000 collection
+
 
-        with switch_db(User, 'archive-user-db') as User:
-            User(name="Ross").save()  # Saves the 'archive-user-db'
 
 .. note:: Make sure any aliases have been registered with
-    :func:`~mongoengine.register_connection` before using the context manager.
+    :func:`~mongoengine.register_connection` or :func:`~mongoengine.connect`
+    before using the context manager.

docs/guide/defining-documents.rst

@@ -4,7 +4,7 @@ Defining documents
 In MongoDB, a **document** is roughly equivalent to a **row** in an RDBMS. When
 working with relational databases, rows are stored in **tables**, which have a
 strict **schema** that the rows follow. MongoDB stores documents in
-**collections** rather than tables - the principle difference is that no schema
+**collections** rather than tables --- the principal difference is that no schema
 is enforced at a database level.
 
 Defining a document's schema
@@ -54,7 +54,7 @@ be saved ::
 
    There is one caveat on Dynamic Documents: fields cannot start with `_`
 
-Dynamic fields are stored in alphabetical order *after* any declared fields.
+Dynamic fields are stored in creation order *after* any declared fields.
 
 Fields
 ======
@@ -91,6 +91,12 @@ are as follows:
 * :class:`~mongoengine.fields.StringField`
 * :class:`~mongoengine.fields.URLField`
 * :class:`~mongoengine.fields.UUIDField`
+* :class:`~mongoengine.fields.PointField`
+* :class:`~mongoengine.fields.LineStringField`
+* :class:`~mongoengine.fields.PolygonField`
+* :class:`~mongoengine.fields.MultiPointField`
+* :class:`~mongoengine.fields.MultiLineStringField`
+* :class:`~mongoengine.fields.MultiPolygonField`
 
 Field arguments
 ---------------
@@ -100,9 +106,6 @@ arguments can be set on all fields:
 :attr:`db_field` (Default: None)
     The MongoDB field name.
 
-:attr:`name` (Default: None)
-    The mongoengine field name.
-
 :attr:`required` (Default: False)
     If set to True and the field is not set on the document instance, a
     :class:`~mongoengine.ValidationError` will be raised when the document is
@@ -111,7 +114,7 @@ arguments can be set on all fields:
 :attr:`default` (Default: None)
     A value to use when no value is set for this field.
 
-    The definion of default parameters follow `the general rules on Python
+    The definition of default parameters follow `the general rules on Python
     <http://docs.python.org/reference/compound_stmts.html#function-definitions>`__,
     which means that some care should be taken when dealing with default mutable objects
     (like in :class:`~mongoengine.fields.ListField` or :class:`~mongoengine.fields.DictField`)::
@@ -129,6 +132,7 @@ arguments can be set on all fields:
             # instead to just an object
             values = ListField(IntField(), default=[1,2,3])
 
+    .. note:: Unsetting a field with a default value will revert back to the default.
 
 :attr:`unique` (Default: False)
     When True, no documents in the collection will have the same value for this
@@ -142,6 +146,8 @@ arguments can be set on all fields:
     When True, use this field as a primary key for the collection.  `DictField`
     and `EmbeddedDocuments` both support being the primary key for a document.
 
+    .. note:: If set, this field is also accessible through the `pk` field.
+
 :attr:`choices` (Default: None)
     An iterable (e.g. a list or tuple) of choices to which the value of this
     field should be limited.
@@ -167,15 +173,15 @@ arguments can be set on all fields:
             size = StringField(max_length=3, choices=SIZE)
 
 :attr:`help_text` (Default: None)
-    Optional help text to output with the field - used by form libraries
+    Optional help text to output with the field -- used by form libraries
 
 :attr:`verbose_name` (Default: None)
-    Optional human-readable name for the field - used by form libraries
+    Optional human-readable name for the field -- used by form libraries
 
 
 List fields
 -----------
-MongoDB allows the storage of lists of items. To add a list of items to a
+MongoDB allows storing lists of items. To add a list of items to a
 :class:`~mongoengine.Document`, use the :class:`~mongoengine.fields.ListField` field
 type. :class:`~mongoengine.fields.ListField` takes another field object as its first
 argument, which specifies which type elements may be stored within the list::
@@ -292,6 +298,12 @@ instance of the object to the query::
     # Find all pages that both Bob and John have authored
     Page.objects(authors__all=[bob, john])
 
+    # Remove Bob from the authors for a page.
+    Page.objects(id='...').update_one(pull__authors=bob)
+
+    # Add John to the authors for a page.
+    Page.objects(id='...').update_one(push__authors=john)
+
 
 Dealing with deletion of referred documents
 '''''''''''''''''''''''''''''''''''''''''''
@@ -303,12 +315,12 @@ reference with a delete rule specification.  A delete rule is specified by
 supplying the :attr:`reverse_delete_rule` attributes on the
 :class:`ReferenceField` definition, like this::
 
-    class Employee(Document):
+    class ProfilePage(Document):
         ...
-        profile_page = ReferenceField('ProfilePage', reverse_delete_rule=mongoengine.NULLIFY)
+        employee = ReferenceField('Employee', reverse_delete_rule=mongoengine.CASCADE)
 
 The declaration in this example means that when an :class:`Employee` object is
-removed, the :class:`ProfilePage` that belongs to that employee is removed as
+removed, the :class:`ProfilePage` that references that employee is removed as
 well.  If a whole batch of employees is removed, all profile pages that are
 linked are removed as well.
 
@@ -324,7 +336,7 @@ Its value can take any of the following constants:
   Any object's fields still referring to the object being deleted are removed
   (using MongoDB's "unset" operation), effectively nullifying the relationship.
 :const:`mongoengine.CASCADE`
-  Any object containing fields that are refererring to the object being deleted
+  Any object containing fields that are referring to the object being deleted
   are deleted first.
 :const:`mongoengine.PULL`
   Removes the reference to the object (using MongoDB's "pull" operation)
@@ -391,7 +403,7 @@ MongoEngine allows you to specify that a field should be unique across a
 collection by providing ``unique=True`` to a :class:`~mongoengine.fields.Field`\ 's
 constructor. If you try to save a document that has the same value for a unique
 field as a document that is already in the database, a
-:class:`~mongoengine.OperationError` will be raised. You may also specify
+:class:`~mongoengine.NotUniqueError` will be raised. You may also specify
 multi-field uniqueness constraints by using :attr:`unique_with`, which may be
 either a single field name, or a list or tuple of field names::
 
@@ -403,7 +415,7 @@ either a single field name, or a list or tuple of field names::
 Skipping Document validation on save
 ------------------------------------
 You can also skip the whole document validation process by setting
-``validate=False`` when caling the :meth:`~mongoengine.document.Document.save`
+``validate=False`` when calling the :meth:`~mongoengine.document.Document.save`
 method::
 
     class Recipient(Document):
@@ -418,7 +430,7 @@ Document collections
 ====================
 Document classes that inherit **directly** from :class:`~mongoengine.Document`
 will have their own **collection** in the database. The name of the collection
-is by default the name of the class, coverted to lowercase (so in the example
+is by default the name of the class, converted to lowercase (so in the example
 above, the collection would be called `page`). If you need to change the name
 of the collection (e.g. to use MongoEngine with an existing database), then
 create a class dictionary attribute called :attr:`meta` on your document, and
@@ -435,8 +447,10 @@ A :class:`~mongoengine.Document` may use a **Capped Collection** by specifying
 :attr:`max_documents` and :attr:`max_size` in the :attr:`meta` dictionary.
 :attr:`max_documents` is the maximum number of documents that is allowed to be
 stored in the collection, and :attr:`max_size` is the maximum size of the
-collection in bytes. If :attr:`max_size` is not specified and
-:attr:`max_documents` is, :attr:`max_size` defaults to 10000000 bytes (10MB).
+collection in bytes. :attr:`max_size` is rounded up to the next multiple of 256
+by MongoDB internally and mongoengine before. Use also a multiple of 256 to
+avoid confusions. If :attr:`max_size` is not specified and
+:attr:`max_documents` is, :attr:`max_size` defaults to 10485760 bytes (10MB).
 The following example shows a :class:`Log` document that will be limited to
 1000 entries and 2MB of disk space::
 
@@ -444,6 +458,8 @@ The following example shows a :class:`Log` document that will be limited to
         ip_address = StringField()
         meta = {'max_documents': 1000, 'max_size': 2000000}
 
+.. defining-indexes_
+
 Indexes
 =======
 
@@ -451,15 +467,31 @@ You can specify indexes on collections to make querying faster. This is done
 by creating a list of index specifications called :attr:`indexes` in the
 :attr:`~mongoengine.Document.meta` dictionary, where an index specification may
 either be a single field name, a tuple containing multiple field names, or a
-dictionary containing a full index definition. A direction may be specified on
-fields by prefixing the field name with a **+** or a **-** sign. Note that
-direction only matters on multi-field indexes. ::
+dictionary containing a full index definition.
+
+A direction may be specified on fields by prefixing the field name with a
+**+** (for ascending) or a **-** sign (for descending). Note that direction
+only matters on multi-field indexes. Text indexes may be specified by prefixing
+the field name with a **$**. Hashed indexes may be specified by prefixing
+the field name with a **#**::
 
     class Page(Document):
+        category = IntField()
         title = StringField()
         rating = StringField()
+        created = DateTimeField()
         meta = {
-            'indexes': ['title', ('title', '-rating')]
+            'indexes': [
+                'title',
+                '$title',  # text index
+                '#title',  # hashed index
+                ('title', '-rating'),
+                ('category', '_cls'),
+                {
+                    'fields': ['created'],
+                    'expireAfterSeconds': 3600
+                }
+            ]
         }
 
 If a dictionary is passed then the following options are available:
@@ -487,6 +519,38 @@ If a dictionary is passed then the following options are available:
 
     Inheritance adds extra fields indices see: :ref:`document-inheritance`.
 
+Global index default options
+----------------------------
+
+There are a few top level defaults for all indexes that can be set::
+
+    class Page(Document):
+        title = StringField()
+        rating = StringField()
+        meta = {
+            'index_options': {},
+            'index_background': True,
+            'index_drop_dups': True,
+            'index_cls': False
+        }
+
+
+:attr:`index_options` (Optional)
+    Set any default index options - see the `full options list <http://docs.mongodb.org/manual/reference/method/db.collection.ensureIndex/#db.collection.ensureIndex>`_
+
+:attr:`index_background` (Optional)
+    Set the default value for if an index should be indexed in the background
+
+:attr:`index_cls` (Optional)
+    A way to turn off a specific index for _cls.
+
+:attr:`index_drop_dups` (Optional)
+    Set the default value for if an index should drop duplicates
+
+.. note:: Since MongoDB 3.0 drop_dups is not supported anymore. Raises a Warning
+    and has no effect
+
+
 Compound Indexes and Indexing sub documents
 -------------------------------------------
 
@@ -496,10 +560,11 @@ field name to the index definition.
 Sometimes its more efficient to index parts of Embedded / dictionary fields,
 in this case use 'dot' notation to identify the value to index eg: `rank.title`
 
+.. _geospatial-indexes:
+
 Geospatial indexes
 ------------------
 
-
 The best geo index for mongodb is the new "2dsphere", which has an improved
 spherical model and provides better performance and more options when querying.
 The following fields will explicitly add a "2dsphere" index:
@@ -507,6 +572,9 @@ The following fields will explicitly add a "2dsphere" index:
     - :class:`~mongoengine.fields.PointField`
     - :class:`~mongoengine.fields.LineStringField`
     - :class:`~mongoengine.fields.PolygonField`
+    - :class:`~mongoengine.fields.MultiPointField`
+    - :class:`~mongoengine.fields.MultiLineStringField`
+    - :class:`~mongoengine.fields.MultiPolygonField`
 
 As "2dsphere" indexes can be part of a compound index, you may not want the
 automatic index but would prefer a compound index.  In this example we turn off
@@ -561,6 +629,19 @@ documentation for more information.  A common usecase might be session data::
             ]
         }
 
+.. warning:: TTL indexes happen on the MongoDB server and not in the application
+    code, therefore no signals will be fired on document deletion.
+    If you need signals to be fired on deletion, then you must handle the
+    deletion of Documents in your application code.
+
+Comparing Indexes
+-----------------
+
+Use :func:`mongoengine.Document.compare_indexes` to compare actual indexes in
+the database to those that your document definitions define.  This is useful
+for maintenance purposes and ensuring you have the correct indexes for your
+schema.
+
 Ordering
 ========
 A default ordering can be specified for your
@@ -605,11 +686,11 @@ Shard keys
 ==========
 
 If your collection is sharded, then you need to specify the shard key as a tuple,
-using the :attr:`shard_key` attribute of :attr:`-mongoengine.Document.meta`.
+using the :attr:`shard_key` attribute of :attr:`~mongoengine.Document.meta`.
 This ensures that the shard key is sent with the query when calling the
 :meth:`~mongoengine.document.Document.save` or
 :meth:`~mongoengine.document.Document.update` method on an existing
-:class:`-mongoengine.Document` instance::
+:class:`~mongoengine.Document` instance::
 
     class LogEntry(Document):
         machine = StringField()
@@ -631,7 +712,7 @@ defined, you may subclass it and add any extra fields or methods you may need.
 As this is new class is not a direct subclass of
 :class:`~mongoengine.Document`, it will not be stored in its own collection; it
 will use the same collection as its superclass uses. This allows for more
-convenient and efficient retrieval of related documents - all you need do is
+convenient and efficient retrieval of related documents -- all you need do is
 set :attr:`allow_inheritance` to True in the :attr:`meta` data for a
 document.::
 
@@ -645,13 +726,12 @@ document.::
     class DatedPage(Page):
         date = DateTimeField()
 
-.. note:: From 0.8 onwards you must declare :attr:`allow_inheritance` defaults
+.. note:: From 0.8 onwards :attr:`allow_inheritance` defaults
           to False, meaning you must set it to True to use inheritance.
 
-
 Working with existing data
 --------------------------
-As MongoEngine no longer defaults to needing :attr:`_cls` you can quickly and
+As MongoEngine no longer defaults to needing :attr:`_cls`, you can quickly and
 easily get working with existing data.  Just define the document to match
 the expected schema in your database ::
 
@@ -668,3 +748,25 @@ defining all possible field types.
 
 If you use :class:`~mongoengine.Document` and the database contains data that
 isn't defined then that data will be stored in the `document._data` dictionary.
+
+Abstract classes
+================
+
+If you want to add some extra functionality to a group of Document classes but
+you don't need or want the overhead of inheritance you can use the
+:attr:`abstract` attribute of :attr:`~mongoengine.Document.meta`.
+This won't turn on :ref:`document-inheritance` but will allow you to keep your
+code DRY::
+
+        class BaseDocument(Document):
+            meta = {
+                'abstract': True,
+            }
+            def check_permissions(self):
+                ...
+
+        class User(BaseDocument):
+           ...
+
+Now the User class will have access to the inherited `check_permissions` method
+and won't store any of the extra `_cls` information.

docs/guide/document-instances.rst

@@ -2,7 +2,7 @@
 Documents instances
 ===================
 To create a new document object, create an instance of the relevant document
-class, providing values for its fields as its constructor keyword arguments.
+class, providing values for its fields as constructor keyword arguments.
 You may provide values for any of the fields on the document::
 
     >>> page = Page(title="Test Page")
@@ -32,11 +32,11 @@ already exist, then any changes will be updated atomically.  For example::
 
     Changes to documents are tracked and on the whole perform ``set`` operations.
 
-    * ``list_field.push(0)`` - *sets* the resulting list
-    * ``del(list_field)``   - *unsets* whole list
+    * ``list_field.push(0)`` --- *sets* the resulting list
+    * ``del(list_field)``   --- *unsets* whole list
 
     With lists its preferable to use ``Doc.update(push__list_field=0)`` as
-    this stops the whole list being updated - stopping any race conditions.
+    this stops the whole list being updated --- stopping any race conditions.
 
 .. seealso::
     :ref:`guide-atomic-updates`
@@ -74,7 +74,7 @@ Cascading Saves
 If your document contains :class:`~mongoengine.fields.ReferenceField` or
 :class:`~mongoengine.fields.GenericReferenceField` objects, then by default the
 :meth:`~mongoengine.Document.save` method will not save any changes to
-those objects.  If you want all references to also be saved also, noting each
+those objects.  If you want all references to be saved also, noting each
 save is a separate query, then passing :attr:`cascade` as True
 to the save method will cascade any saves.
 
@@ -113,12 +113,13 @@ you may still use :attr:`id` to access the primary key if you want::
     >>> bob.id == bob.email == 'bob@example.com'
     True
 
-You can also access the document's "primary key" using the :attr:`pk` field; in
-is an alias to :attr:`id`::
+You can also access the document's "primary key" using the :attr:`pk` field,
+it's an alias to :attr:`id`::
 
     >>> page = Page(title="Another Test Page")
     >>> page.save()
     >>> page.id == page.pk
+    True
 
 .. note::
 

docs/guide/gridfs.rst

@@ -20,7 +20,7 @@ a document is created to store details about animals, including a photo::
 
     marmot = Animal(genus='Marmota', family='Sciuridae')
 
-    marmot_photo = open('marmot.jpg', 'r')
+    marmot_photo = open('marmot.jpg', 'rb')
     marmot.photo.put(marmot_photo, content_type = 'image/jpeg')
     marmot.save()
 
@@ -46,7 +46,7 @@ slightly different manner.  First, a new file must be created by calling the
     marmot.photo.write('some_more_image_data')
     marmot.photo.close()
 
-    marmot.photo.save()
+    marmot.save()
 
 Deletion
 --------
@@ -70,5 +70,5 @@ Replacing files
 Files can be replaced with the :func:`replace` method. This works just like
 the :func:`put` method so even metadata can (and should) be replaced::
 
-    another_marmot = open('another_marmot.png', 'r')
+    another_marmot = open('another_marmot.png', 'rb')
     marmot.photo.replace(another_marmot, content_type='image/png')

docs/guide/index.rst

@@ -12,3 +12,4 @@ User Guide
    querying
    gridfs
    signals
+   text-indexes

docs/guide/querying.rst

@@ -15,11 +15,10 @@ fetch documents from the database::
 
 .. note::
 
-   Once the iteration finishes (when :class:`StopIteration` is raised),
-   :meth:`~mongoengine.queryset.QuerySet.rewind` will be called so that the
-   :class:`~mongoengine.queryset.QuerySet` may be iterated over again. The
-   results of the first iteration are *not* cached, so the database will be hit
-   each time the :class:`~mongoengine.queryset.QuerySet` is iterated over.
+    As of MongoEngine 0.8 the querysets utilise a local cache.  So iterating
+    it multiple times will only cause a single query.  If this is not the
+    desired behaviour you can call :class:`~mongoengine.QuerySet.no_cache`
+    (version **0.8.3+**) to return a non-caching queryset.
 
 Filtering queries
 =================
@@ -40,10 +39,18 @@ syntax::
     # been written by a user whose 'country' field is set to 'uk'
     uk_pages = Page.objects(author__country='uk')
 
+.. note::
+
+   (version **0.9.1+**) if your field name is like mongodb operator name (for example
+   type, lte, lt...) and you want to place it at the end of lookup keyword
+   mongoengine automatically  prepend $ to it. To avoid this use  __ at the end of
+   your lookup keyword. For example if your field name is ``type`` and you want to
+   query by this field you must use ``.objects(user__type__="admin")`` instead of
+   ``.objects(user__type="admin")``
 
 Query operators
 ===============
-Operators other than equality may also be used in queries; just attach the
+Operators other than equality may also be used in queries --- just attach the
 operator name to a key with a double-underscore::
 
     # Only find users whose age is 18 or less
@@ -85,19 +92,20 @@ expressions:
 Geo queries
 -----------
 
-There are a few special operators for performing geographical queries. The following
-were added in 0.8 for:  :class:`~mongoengine.fields.PointField`,
+There are a few special operators for performing geographical queries.
+The following were added in MongoEngine 0.8 for
+:class:`~mongoengine.fields.PointField`,
 :class:`~mongoengine.fields.LineStringField` and
 :class:`~mongoengine.fields.PolygonField`:
 
-* ``geo_within`` -- Check if a geometry is within a polygon.  For ease of use
-    it accepts either a geojson geometry or just the polygon coordinates eg::
+* ``geo_within`` -- check if a geometry is within a polygon. For ease of use
+  it accepts either a geojson geometry or just the polygon coordinates eg::
 
-        loc.objects(point__geo_with=[[[40, 5], [40, 6], [41, 6], [40, 5]]])
-        loc.objects(point__geo_with={"type": "Polygon",
+        loc.objects(point__geo_within=[[[40, 5], [40, 6], [41, 6], [40, 5]]])
+        loc.objects(point__geo_within={"type": "Polygon",
                                  "coordinates": [[[40, 5], [40, 6], [41, 6], [40, 5]]]})
 
-* ``geo_within_box`` - simplified geo_within searching with a box eg::
+* ``geo_within_box`` -- simplified geo_within searching with a box eg::
 
         loc.objects(point__geo_within_box=[(-125.0, 35.0), (-100.0, 40.0)])
         loc.objects(point__geo_within_box=[<bottom left coordinates>, <upper right coordinates>])
@@ -133,23 +141,22 @@ were added in 0.8 for:  :class:`~mongoengine.fields.PointField`,
         loc.objects(poly__geo_intersects={"type": "Polygon",
                                           "coordinates": [[[40, 5], [40, 6], [41, 6], [41, 5], [40, 5]]]})
 
-* ``near`` -- Find all the locations near a given point::
+* ``near`` -- find all the locations near a given point::
 
         loc.objects(point__near=[40, 5])
         loc.objects(point__near={"type": "Point", "coordinates": [40, 5]})
 
-
-    You can also set the maximum distance in meters as well::
+  You can also set the maximum and/or the minimum distance in meters as well::
 
         loc.objects(point__near=[40, 5], point__max_distance=1000)
-
+        loc.objects(point__near=[40, 5], point__min_distance=100)
 
 The older 2D indexes are still supported with the
 :class:`~mongoengine.fields.GeoPointField`:
 
 * ``within_distance`` -- provide a list containing a point and a maximum
   distance (e.g. [(41.342, -87.653), 5])
-* ``within_spherical_distance`` -- Same as above but using the spherical geo model
+* ``within_spherical_distance`` -- same as above but using the spherical geo model
   (e.g. [(41.342, -87.653), 5/earth_radius])
 * ``near`` -- order the documents by how close they are to a given point
 * ``near_sphere`` -- Same as above but using the spherical geo model
@@ -162,7 +169,8 @@ The older 2D indexes are still supported with the
 
 * ``max_distance`` -- can be added to your location queries to set a maximum
   distance.
-
+* ``min_distance`` -- can be added to your location queries to set a minimum
+  distance.
 
 Querying lists
 --------------
@@ -199,12 +207,14 @@ However, this doesn't map well to the syntax so you can also use a capital S ins
 
     Post.objects(comments__by="joe").update(inc__comments__S__votes=1)
 
-    .. note:: Due to Mongo currently the $ operator only applies to the first matched item in the query.
+.. note::
+    Due to :program:`Mongo`, currently the $ operator only applies to the
+    first matched item in the query.
 
 
 Raw queries
 -----------
-It is possible to provide a raw PyMongo query as a query parameter, which will
+It is possible to provide a raw :mod:`PyMongo` query as a query parameter, which will
 be integrated directly into the query. This is done using the ``__raw__``
 keyword argument::
 
@@ -214,12 +224,12 @@ keyword argument::
 
 Limiting and skipping results
 =============================
-Just as with traditional ORMs, you may limit the number of results returned, or
+Just as with traditional ORMs, you may limit the number of results returned or
 skip a number or results in you query.
 :meth:`~mongoengine.queryset.QuerySet.limit` and
 :meth:`~mongoengine.queryset.QuerySet.skip` and methods are available on
-:class:`~mongoengine.queryset.QuerySet` objects, but the prefered syntax for
-achieving this is using array-slicing syntax::
+:class:`~mongoengine.queryset.QuerySet` objects, but the `array-slicing` syntax
+is preferred for achieving this::
 
     # Only the first 5 people
     users = User.objects[:5]
@@ -253,23 +263,17 @@ To retrieve a result that should be unique in the collection, use
 no document matches the query, and
 :class:`~mongoengine.queryset.MultipleObjectsReturned`
 if more than one document matched the query.  These exceptions are merged into
-your document defintions eg: `MyDoc.DoesNotExist`
+your document definitions eg: `MyDoc.DoesNotExist`
 
-A variation of this method exists,
-:meth:`~mongoengine.queryset.Queryset.get_or_create`, that will create a new
-document with the query arguments if no documents match the query. An
-additional keyword argument, :attr:`defaults` may be provided, which will be
-used as default values for the new document, in the case that it should need
-to be created::
-
-    >>> a, created = User.objects.get_or_create(name='User A', defaults={'age': 30})
-    >>> b, created = User.objects.get_or_create(name='User A', defaults={'age': 40})
-    >>> a.name == b.name and a.age == b.age
-    True
+A variation of this method, get_or_create() existed, but it was unsafe. It
+could not be made safe, because there are no transactions in mongoDB. Other
+approaches should be investigated, to ensure you don't accidentally duplicate
+data when using something similar to this method. Therefore it was deprecated
+in 0.8 and removed in 0.10.
 
 Default Document queries
 ========================
-By default, the objects :attr:`~mongoengine.Document.objects` attribute on a
+By default, the objects :attr:`~Document.objects` attribute on a
 document returns a :class:`~mongoengine.queryset.QuerySet` that doesn't filter
 the collection -- it returns all objects. This may be changed by defining a
 method on a document that modifies a queryset. The method should accept two
@@ -312,7 +316,7 @@ Should you want to add custom methods for interacting with or filtering
 documents, extending the :class:`~mongoengine.queryset.QuerySet` class may be
 the way to go. To use a custom :class:`~mongoengine.queryset.QuerySet` class on
 a document, set ``queryset_class`` to the custom class in a
-:class:`~mongoengine.Document`\ s ``meta`` dictionary::
+:class:`~mongoengine.Document`'s ``meta`` dictionary::
 
     class AwesomerQuerySet(QuerySet):
 
@@ -343,6 +347,8 @@ way of achieving this::
 
     num_users = len(User.objects)
 
+Even if len() is the Pythonic way of counting results, keep in mind that if you concerned about performance, :meth:`~mongoengine.queryset.QuerySet.count` is the way to go since it only execute a server side count query, while len() retrieves the results, places them in cache, and finally counts them. If we compare the performance of the two operations, len() is much slower than :meth:`~mongoengine.queryset.QuerySet.count`.
+
 Further aggregation
 -------------------
 You may sum over the values of a specific field on documents using
@@ -489,23 +495,28 @@ calling it with keyword arguments::
 Atomic updates
 ==============
 Documents may be updated atomically by using the
-:meth:`~mongoengine.queryset.QuerySet.update_one` and
-:meth:`~mongoengine.queryset.QuerySet.update` methods on a
-:meth:`~mongoengine.queryset.QuerySet`. There are several different "modifiers"
-that you may use with these methods:
+:meth:`~mongoengine.queryset.QuerySet.update_one`,
+:meth:`~mongoengine.queryset.QuerySet.update` and
+:meth:`~mongoengine.queryset.QuerySet.modify` methods on a
+:class:`~mongoengine.queryset.QuerySet` or
+:meth:`~mongoengine.Document.modify` and
+:meth:`~mongoengine.Document.save` (with :attr:`save_condition` argument) on a
+:class:`~mongoengine.Document`.
+There are several different "modifiers" that you may use with these methods:
 
 * ``set`` -- set a particular value
-* ``unset`` -- delete a particular value (since MongoDB v1.3+)
+* ``unset`` -- delete a particular value (since MongoDB v1.3)
 * ``inc`` -- increment a value by a given amount
 * ``dec`` -- decrement a value by a given amount
-* ``pop`` -- remove the last item from a list
 * ``push`` -- append a value to a list
 * ``push_all`` -- append several values to a list
-* ``pop`` -- remove the first or last element of a list
+* ``pop`` -- remove the first or last element of a list `depending on the value`_
 * ``pull`` -- remove a value from a list
 * ``pull_all`` -- remove several values from a list
 * ``add_to_set`` -- add value to a list only if its not in the list already
 
+.. _depending on the value: http://docs.mongodb.org/manual/reference/operator/update/pop/
+
 The syntax for atomic updates is similar to the querying syntax, but the
 modifier comes before the field, not after it::
 
@@ -524,6 +535,13 @@ modifier comes before the field, not after it::
     >>> post.tags
     ['database', 'nosql']
 
+.. note::
+
+    If no modifier operator is specified the default will be ``$set``. So the following sentences are identical::
+
+        >>> BlogPost.objects(id=post.id).update(title='Example Post')
+        >>> BlogPost.objects(id=post.id).update(set__title='Example Post')
+
 .. note::
 
     In version 0.5 the :meth:`~mongoengine.Document.save` runs atomic updates
@@ -582,7 +600,7 @@ Some variables are made available in the scope of the Javascript function:
 
 The following example demonstrates the intended usage of
 :meth:`~mongoengine.queryset.QuerySet.exec_js` by defining a function that sums
-over a field on a document (this functionality is already available throught
+over a field on a document (this functionality is already available through
 :meth:`~mongoengine.queryset.QuerySet.sum` but is shown here for sake of
 example)::
 

docs/guide/signals.rst

@@ -1,5 +1,6 @@
 .. _signals:
 
+=======
 Signals
 =======
 
@@ -7,32 +8,95 @@ Signals
 
 .. note::
 
-  Signal support is provided by the excellent `blinker`_ library and
-  will gracefully fall back if it is not available.
+  Signal support is provided by the excellent `blinker`_ library. If you wish
+  to enable signal support this library must be installed, though it is not
+  required for MongoEngine to function.
 
+Overview
+--------
 
-The following document signals exist in MongoEngine and are pretty self-explanatory:
+Signals are found within the `mongoengine.signals` module.  Unless
+specified signals receive no additional arguments beyond the `sender` class and
+`document` instance.  Post-signals are only called if there were no exceptions
+raised during the processing of their related function.
 
-  * `mongoengine.signals.pre_init`
-  * `mongoengine.signals.post_init`
-  * `mongoengine.signals.pre_save`
-  * `mongoengine.signals.post_save`
-  * `mongoengine.signals.pre_delete`
-  * `mongoengine.signals.post_delete`
-  * `mongoengine.signals.pre_bulk_insert`
-  * `mongoengine.signals.post_bulk_insert`
+Available signals include:
 
-Example usage::
+`pre_init`
+  Called during the creation of a new :class:`~mongoengine.Document` or
+  :class:`~mongoengine.EmbeddedDocument` instance, after the constructor
+  arguments have been collected but before any additional processing has been
+  done to them.  (I.e. assignment of default values.)  Handlers for this signal
+  are passed the dictionary of arguments using the `values` keyword argument
+  and may modify this dictionary prior to returning.
+
+`post_init`
+  Called after all processing of a new :class:`~mongoengine.Document` or
+  :class:`~mongoengine.EmbeddedDocument` instance has been completed.
+
+`pre_save`
+  Called within :meth:`~mongoengine.Document.save` prior to performing
+  any actions.
+
+`pre_save_post_validation`
+  Called within :meth:`~mongoengine.Document.save` after validation
+  has taken place but before saving.
+
+`post_save`
+  Called within :meth:`~mongoengine.Document.save` after all actions
+  (validation, insert/update, cascades, clearing dirty flags) have completed
+  successfully.  Passed the additional boolean keyword argument `created` to
+  indicate if the save was an insert or an update.
+
+`pre_delete`
+  Called within :meth:`~mongoengine.Document.delete` prior to
+  attempting the delete operation.
+
+`post_delete`
+  Called within :meth:`~mongoengine.Document.delete` upon successful
+  deletion of the record.
+
+`pre_bulk_insert`
+  Called after validation of the documents to insert, but prior to any data
+  being written. In this case, the `document` argument is replaced by a
+  `documents` argument representing the list of documents being inserted.
+
+`post_bulk_insert`
+  Called after a successful bulk insert operation.  As per `pre_bulk_insert`,
+  the `document` argument is omitted and replaced with a `documents` argument.
+  An additional boolean argument, `loaded`, identifies the contents of
+  `documents` as either :class:`~mongoengine.Document` instances when `True` or
+  simply a list of primary key values for the inserted records if `False`.
+
+Attaching Events
+----------------
+
+After writing a handler function like the following::
+
+    import logging
+    from datetime import datetime
 
     from mongoengine import *
     from mongoengine import signals
 
+    def update_modified(sender, document):
+        document.modified = datetime.utcnow()
+
+You attach the event handler to your :class:`~mongoengine.Document` or
+:class:`~mongoengine.EmbeddedDocument` subclass::
+
+    class Record(Document):
+        modified = DateTimeField()
+
+    signals.pre_save.connect(update_modified)
+
+While this is not the most elaborate document model, it does demonstrate the
+concepts involved.  As a more complete demonstration you can also define your
+handlers within your subclass::
+
     class Author(Document):
         name = StringField()
 
-        def __unicode__(self):
-            return self.name
-
         @classmethod
         def pre_save(cls, sender, document, **kwargs):
             logging.debug("Pre Save: %s" % document.name)
@@ -49,12 +113,40 @@ Example usage::
     signals.pre_save.connect(Author.pre_save, sender=Author)
     signals.post_save.connect(Author.post_save, sender=Author)
 
+Finally, you can also use this small decorator to quickly create a number of
+signals and attach them to your :class:`~mongoengine.Document` or
+:class:`~mongoengine.EmbeddedDocument` subclasses as class decorators::
 
-ReferenceFields and signals
+    def handler(event):
+        """Signal decorator to allow use of callback functions as class decorators."""
+
+        def decorator(fn):
+            def apply(cls):
+                event.connect(fn, sender=cls)
+                return cls
+
+            fn.apply = apply
+            return fn
+
+        return decorator
+
+Using the first example of updating a modification time the code is now much
+cleaner looking while still allowing manual execution of the callback::
+
+    @handler(signals.pre_save)
+    def update_modified(sender, document):
+        document.modified = datetime.utcnow()
+
+    @update_modified.apply
+    class Record(Document):
+        modified = DateTimeField()
+
+
+ReferenceFields and Signals
 ---------------------------
 
-Currently `reverse_delete_rules` do not trigger signals on the other part of
-the relationship.  If this is required you must manually handled the
+Currently `reverse_delete_rule` does not trigger signals on the other part of
+the relationship.  If this is required you must manually handle the
 reverse deletion.
 
 .. _blinker: http://pypi.python.org/pypi/blinker

docs/guide/text-indexes.rst

@@ -0,0 +1,51 @@
+===========
+Text Search
+===========
+
+After MongoDB 2.4 version, supports search documents by text indexes.
+
+
+Defining a Document with text index
+===================================
+Use the *$* prefix to set a text index, Look the declaration::
+  
+  class News(Document):
+      title = StringField()
+      content = StringField()
+      is_active = BooleanField()
+
+      meta = {'indexes': [
+          {'fields': ['$title', "$content"],
+           'default_language': 'english',
+           'weights': {'title': 10, 'content': 2}
+          }
+      ]}
+
+
+
+Querying
+========
+
+Saving a document::
+
+  News(title="Using mongodb text search",
+       content="Testing text search").save()
+
+  News(title="MongoEngine 0.9 released",
+       content="Various improvements").save()
+
+Next, start a text search using :attr:`QuerySet.search_text` method::
+  
+  document = News.objects.search_text('testing').first()
+  document.title # may be: "Using mongodb text search"
+  
+  document = News.objects.search_text('released').first()
+  document.title # may be: "MongoEngine 0.9 released"
+
+
+Ordering by text score
+======================
+
+::
+
+  objects = News.objects.search('mongo').order_by('$text_score')

docs/index.rst

@@ -14,7 +14,7 @@ MongoDB. To install it, simply run
   MongoEngine.
 
 :doc:`guide/index`
-  The Full guide to MongoEngine - from modeling documents to storing files,
+  The Full guide to MongoEngine --- from modeling documents to storing files,
   from querying for data to firing signals and *everything* between.
 
 :doc:`apireference`

docs/tutorial.rst

@@ -65,7 +65,7 @@ which fields a :class:`User` may have, and what types of data they might store::
         first_name = StringField(max_length=50)
         last_name = StringField(max_length=50)
 
-This looks similar to how a the structure of a table would be defined in a
+This looks similar to how the structure of a table would be defined in a
 regular ORM. The key difference is that this schema will never be passed on to
 MongoDB --- this will only be enforced at the application level, making future
 changes easy to manage. Also, the User documents will be stored in a
@@ -298,5 +298,5 @@ Learning more about mongoengine
 -------------------------------
 
 If you got this far you've made a great start, so well done!  The next step on
-your mongoengine journey is the `full user guide <guide/index>`_, where you
-can learn indepth about how to use mongoengine and mongodb.
+your mongoengine journey is the `full user guide <guide/index.html>`_, where you
+can learn indepth about how to use mongoengine and mongodb.

docs/upgrade.rst

@@ -2,12 +2,38 @@
 Upgrading
 #########
 
+0.9.0
+*****
+
+The 0.8.7 package on pypi was corrupted.  If upgrading from 0.8.7 to 0.9.0 please follow: ::
+
+    pip uninstall pymongo
+    pip uninstall mongoengine
+    pip install pymongo==2.8
+    pip install mongoengine
+
+0.8.7
+*****
+
+Calling reload on deleted / nonexistent documents now raises a DoesNotExist
+exception.
+
+
+0.8.2 to 0.8.3
+**************
+
+Minor change that may impact users:
+
+DynamicDocument fields are now stored in creation order after any declared
+fields.  Previously they were stored alphabetically.
+
+
 0.7 to 0.8
 **********
 
 There have been numerous backwards breaking changes in 0.8.  The reasons for
-these are ensure that MongoEngine has sane defaults going forward and
-performs the best it can out the box.  Where possible there have been
+these are to ensure that MongoEngine has sane defaults going forward and that it
+performs the best it can out of the box.  Where possible there have been
 FutureWarnings to help get you ready for the change, but that hasn't been
 possible for the whole of the release.
 
@@ -61,7 +87,7 @@ inherited classes like so: ::
 Document Definition
 -------------------
 
-The default for inheritance has changed - its now off by default and
+The default for inheritance has changed - it is now off by default and
 :attr:`_cls` will not be stored automatically with the class.  So if you extend
 your :class:`~mongoengine.Document` or :class:`~mongoengine.EmbeddedDocuments`
 you will need to declare :attr:`allow_inheritance` in the meta data like so: ::
@@ -71,7 +97,7 @@ you will need to declare :attr:`allow_inheritance` in the meta data like so: ::
 
         meta = {'allow_inheritance': True}
 
-Previously, if you had data the database that wasn't defined in the Document
+Previously, if you had data in the database that wasn't defined in the Document
 definition, it would set it as an attribute on the document.  This is no longer
 the case and the data is set only in the ``document._data`` dictionary: ::
 
@@ -91,10 +117,17 @@ the case and the data is set only in the ``document._data`` dictionary: ::
       File "<stdin>", line 1, in <module>
     AttributeError: 'Animal' object has no attribute 'size'
 
+The Document class has introduced a reserved function `clean()`, which will be
+called before saving the document. If your document class happens to have a method
+with the same name, please try to rename it.
+
+    def clean(self):
+        pass
+
 ReferenceField
 --------------
 
-ReferenceFields now store ObjectId's by default - this is more efficient than
+ReferenceFields now store ObjectIds by default - this is more efficient than
 DBRefs as we already know what Document types they reference::
 
     # Old code
@@ -116,13 +149,17 @@ eg::
 
     # Mark all ReferenceFields as dirty and save
     for p in Person.objects:
-        p._mark_as_dirty('parent')
-        p._mark_as_dirty('friends')
+        p._mark_as_changed('parent')
+        p._mark_as_changed('friends')
         p.save()
 
 `An example test migration for ReferenceFields is available on github
 <https://github.com/MongoEngine/mongoengine/blob/master/tests/migration/refrencefield_dbref_to_object_id.py>`_.
 
+.. Note:: Internally mongoengine handles ReferenceFields the same, so they are
+   converted to DBRef on loading and ObjectIds or DBRefs depending on settings
+   on storage.
+
 UUIDField
 ---------
 
@@ -136,16 +173,16 @@ UUIDFields now default to storing binary values::
     class Animal(Document):
         uuid = UUIDField(binary=False)
 
-To migrate all the uuid's you need to touch each object and mark it as dirty
+To migrate all the uuids you need to touch each object and mark it as dirty
 eg::
 
     # Doc definition
     class Animal(Document):
         uuid = UUIDField()
 
-    # Mark all ReferenceFields as dirty and save
+    # Mark all UUIDFields as dirty and save
     for a in Animal.objects:
-        a._mark_as_dirty('uuid')
+        a._mark_as_changed('uuid')
         a.save()
 
 `An example test migration for UUIDFields is available on github
@@ -154,7 +191,7 @@ eg::
 DecimalField
 ------------
 
-DecimalField now store floats - previous it was storing strings and that
+DecimalFields now store floats - previously it was storing strings and that
 made it impossible to do comparisons when querying correctly.::
 
     # Old code
@@ -165,19 +202,19 @@ made it impossible to do comparisons when querying correctly.::
     class Person(Document):
         balance = DecimalField(force_string=True)
 
-To migrate all the uuid's you need to touch each object and mark it as dirty
+To migrate all the DecimalFields you need to touch each object and mark it as dirty
 eg::
 
     # Doc definition
     class Person(Document):
         balance = DecimalField()
 
-    # Mark all ReferenceFields as dirty and save
+    # Mark all DecimalField's as dirty and save
     for p in Person.objects:
-        p._mark_as_dirty('balance')
+        p._mark_as_changed('balance')
         p.save()
 
-.. note:: DecimalField's have also been improved with the addition of precision
+.. note:: DecimalFields have also been improved with the addition of precision
     and rounding.  See :class:`~mongoengine.fields.DecimalField` for more information.
 
 `An example test migration for DecimalFields is available on github
@@ -186,7 +223,7 @@ eg::
 Cascading Saves
 ---------------
 To improve performance document saves will no longer automatically cascade.
-Any changes to a Documents references will either have to be saved manually or
+Any changes to a Document's references will either have to be saved manually or
 you will have to explicitly tell it to cascade on save::
 
     # At the class level:
@@ -228,7 +265,7 @@ update your code like so: ::
 
     # Update example a) assign queryset after a change:
     mammals = Animal.objects(type="mammal")
-    carnivores = mammals.filter(order="Carnivora") # Reassign the new queryset so fitler can be applied
+    carnivores = mammals.filter(order="Carnivora") # Reassign the new queryset so filter can be applied
     [m for m in carnivores]                        # This will return all carnivores
 
     # Update example b) chain the queryset:
@@ -236,7 +273,7 @@ update your code like so: ::
     [m for m in mammals]                                               # This will return all carnivores
 
 Len iterates the queryset
---------------------------
+-------------------------
 
 If you ever did `len(queryset)` it previously did a `count()` under the covers,
 this caused some unusual issues.  As `len(queryset)` is most often used by
@@ -249,13 +286,13 @@ queryset you should upgrade to use count::
     len(Animal.objects(type="mammal"))
 
     # New code
-    Animal.objects(type="mammal").count())
+    Animal.objects(type="mammal").count()
 
 
 .only() now inline with .exclude()
 ----------------------------------
 
-The behaviour of `.only()` was highly ambious, now it works in the mirror fashion
+The behaviour of `.only()` was highly ambiguous, now it works in mirror fashion
 to `.exclude()`.  Chaining `.only()` calls will increase the fields required::
 
     # Old code
@@ -419,7 +456,7 @@ main areas of changed are: choices in fields, map_reduce and collection names.
 Choice options:
 ===============
 
-Are now expected to be an iterable of tuples, with  the first element in each
+Are now expected to be an iterable of tuples, with the first element in each
 tuple being the actual value to be stored. The second element is the
 human-readable name for the option.
 
@@ -441,8 +478,8 @@ such the following have been changed:
 Default collection naming
 =========================
 
-Previously it was just lowercase, its now much more pythonic and readable as
-its lowercase and underscores, previously ::
+Previously it was just lowercase, it's now much more pythonic and readable as
+it's lowercase and underscores, previously ::
 
     class MyAceDocument(Document):
         pass
@@ -509,5 +546,5 @@ Alternatively, you can rename your collections eg ::
 mongodb 1.8 > 2.0 +
 ===================
 
-Its been reported that indexes may need to be recreated to the newer version of indexes.
+It's been reported that indexes may need to be recreated to the newer version of indexes.
 To do this drop indexes and call ``ensure_indexes`` on each model.

mongoengine/__init__.py

@@ -10,12 +10,11 @@ import signals
 from signals import *
 from errors import *
 import errors
-import django
 
 __all__ = (list(document.__all__) + fields.__all__ + connection.__all__ +
            list(queryset.__all__) + signals.__all__ + list(errors.__all__))
 
-VERSION = (0, 8, 0)
+VERSION = (0, 10, 1)
 
 
 def get_version():

mongoengine/base/datastructures.py

@@ -1,45 +1,59 @@
 import weakref
-from mongoengine.common import _import_class
+import itertools
 
-__all__ = ("BaseDict", "BaseList")
+from mongoengine.common import _import_class
+from mongoengine.errors import DoesNotExist, MultipleObjectsReturned
+
+__all__ = ("BaseDict", "BaseList", "EmbeddedDocumentList")
 
 
 class BaseDict(dict):
-    """A special dict so we can watch any changes
-    """
+    """A special dict so we can watch any changes"""
 
     _dereferenced = False
     _instance = None
     _name = None
 
     def __init__(self, dict_items, instance, name):
-        self._instance = weakref.proxy(instance)
-        self._name = name
-        return super(BaseDict, self).__init__(dict_items)
+        Document = _import_class('Document')
+        EmbeddedDocument = _import_class('EmbeddedDocument')
 
-    def __getitem__(self, *args, **kwargs):
-        value = super(BaseDict, self).__getitem__(*args, **kwargs)
+        if isinstance(instance, (Document, EmbeddedDocument)):
+            self._instance = weakref.proxy(instance)
+        self._name = name
+        super(BaseDict, self).__init__(dict_items)
+
+    def __getitem__(self, key, *args, **kwargs):
+        value = super(BaseDict, self).__getitem__(key)
 
         EmbeddedDocument = _import_class('EmbeddedDocument')
         if isinstance(value, EmbeddedDocument) and value._instance is None:
             value._instance = self._instance
+        elif not isinstance(value, BaseDict) and isinstance(value, dict):
+            value = BaseDict(value, None, '%s.%s' % (self._name, key))
+            super(BaseDict, self).__setitem__(key, value)
+            value._instance = self._instance
+        elif not isinstance(value, BaseList) and isinstance(value, list):
+            value = BaseList(value, None, '%s.%s' % (self._name, key))
+            super(BaseDict, self).__setitem__(key, value)
+            value._instance = self._instance
         return value
 
-    def __setitem__(self, *args, **kwargs):
-        self._mark_as_changed()
-        return super(BaseDict, self).__setitem__(*args, **kwargs)
+    def __setitem__(self, key, value, *args, **kwargs):
+        self._mark_as_changed(key)
+        return super(BaseDict, self).__setitem__(key, value)
 
     def __delete__(self, *args, **kwargs):
         self._mark_as_changed()
         return super(BaseDict, self).__delete__(*args, **kwargs)
 
-    def __delitem__(self, *args, **kwargs):
-        self._mark_as_changed()
-        return super(BaseDict, self).__delitem__(*args, **kwargs)
+    def __delitem__(self, key, *args, **kwargs):
+        self._mark_as_changed(key)
+        return super(BaseDict, self).__delitem__(key)
 
-    def __delattr__(self, *args, **kwargs):
-        self._mark_as_changed()
-        return super(BaseDict, self).__delattr__(*args, **kwargs)
+    def __delattr__(self, key, *args, **kwargs):
+        self._mark_as_changed(key)
+        return super(BaseDict, self).__delattr__(key)
 
     def __getstate__(self):
         self.instance = None
@@ -52,7 +66,7 @@ class BaseDict(dict):
 
     def clear(self, *args, **kwargs):
         self._mark_as_changed()
-        return super(BaseDict, self).clear(*args, **kwargs)
+        return super(BaseDict, self).clear()
 
     def pop(self, *args, **kwargs):
         self._mark_as_changed()
@@ -60,15 +74,22 @@ class BaseDict(dict):
 
     def popitem(self, *args, **kwargs):
         self._mark_as_changed()
-        return super(BaseDict, self).popitem(*args, **kwargs)
+        return super(BaseDict, self).popitem()
+
+    def setdefault(self, *args, **kwargs):
+        self._mark_as_changed()
+        return super(BaseDict, self).setdefault(*args, **kwargs)
 
     def update(self, *args, **kwargs):
         self._mark_as_changed()
         return super(BaseDict, self).update(*args, **kwargs)
 
-    def _mark_as_changed(self):
+    def _mark_as_changed(self, key=None):
         if hasattr(self._instance, '_mark_as_changed'):
-            self._instance._mark_as_changed(self._name)
+            if key:
+                self._instance._mark_as_changed('%s.%s' % (self._name, key))
+            else:
+                self._instance._mark_as_changed(self._name)
 
 
 class BaseList(list):
@@ -80,25 +101,55 @@ class BaseList(list):
     _name = None
 
     def __init__(self, list_items, instance, name):
-        self._instance = weakref.proxy(instance)
-        self._name = name
-        return super(BaseList, self).__init__(list_items)
+        Document = _import_class('Document')
+        EmbeddedDocument = _import_class('EmbeddedDocument')
 
-    def __getitem__(self, *args, **kwargs):
-        value = super(BaseList, self).__getitem__(*args, **kwargs)
+        if isinstance(instance, (Document, EmbeddedDocument)):
+            self._instance = weakref.proxy(instance)
+        self._name = name
+        super(BaseList, self).__init__(list_items)
+
+    def __getitem__(self, key, *args, **kwargs):
+        value = super(BaseList, self).__getitem__(key)
 
         EmbeddedDocument = _import_class('EmbeddedDocument')
         if isinstance(value, EmbeddedDocument) and value._instance is None:
             value._instance = self._instance
+        elif not isinstance(value, BaseDict) and isinstance(value, dict):
+            value = BaseDict(value, None, '%s.%s' % (self._name, key))
+            super(BaseList, self).__setitem__(key, value)
+            value._instance = self._instance
+        elif not isinstance(value, BaseList) and isinstance(value, list):
+            value = BaseList(value, None, '%s.%s' % (self._name, key))
+            super(BaseList, self).__setitem__(key, value)
+            value._instance = self._instance
         return value
 
-    def __setitem__(self, *args, **kwargs):
-        self._mark_as_changed()
-        return super(BaseList, self).__setitem__(*args, **kwargs)
+    def __iter__(self):
+        for i in xrange(self.__len__()):
+            yield self[i]
 
-    def __delitem__(self, *args, **kwargs):
+    def __setitem__(self, key, value, *args, **kwargs):
+        if isinstance(key, slice):
+            self._mark_as_changed()
+        else:
+            self._mark_as_changed(key)
+        return super(BaseList, self).__setitem__(key, value)
+
+    def __delitem__(self, key, *args, **kwargs):
+        if isinstance(key, slice):
+            self._mark_as_changed()
+        else:
+            self._mark_as_changed(key)
+        return super(BaseList, self).__delitem__(key)
+
+    def __setslice__(self, *args, **kwargs):
         self._mark_as_changed()
-        return super(BaseList, self).__delitem__(*args, **kwargs)
+        return super(BaseList, self).__setslice__(*args, **kwargs)
+
+    def __delslice__(self, *args, **kwargs):
+        self._mark_as_changed()
+        return super(BaseList, self).__delslice__(*args, **kwargs)
 
     def __getstate__(self):
         self.instance = None
@@ -109,6 +160,14 @@ class BaseList(list):
         self = state
         return self
 
+    def __iadd__(self, other):
+        self._mark_as_changed()
+        return super(BaseList, self).__iadd__(other)
+
+    def __imul__(self, other):
+        self._mark_as_changed()
+        return super(BaseList, self).__imul__(other)
+
     def append(self, *args, **kwargs):
         self._mark_as_changed()
         return super(BaseList, self).append(*args, **kwargs)
@@ -131,12 +190,292 @@ class BaseList(list):
 
     def reverse(self, *args, **kwargs):
         self._mark_as_changed()
-        return super(BaseList, self).reverse(*args, **kwargs)
+        return super(BaseList, self).reverse()
 
     def sort(self, *args, **kwargs):
         self._mark_as_changed()
         return super(BaseList, self).sort(*args, **kwargs)
 
-    def _mark_as_changed(self):
+    def _mark_as_changed(self, key=None):
         if hasattr(self._instance, '_mark_as_changed'):
-            self._instance._mark_as_changed(self._name)
+            if key:
+                self._instance._mark_as_changed('%s.%s' % (self._name, key))
+            else:
+                self._instance._mark_as_changed(self._name)
+
+
+class EmbeddedDocumentList(BaseList):
+
+    @classmethod
+    def __match_all(cls, i, kwargs):
+        items = kwargs.items()
+        return all([
+            getattr(i, k) == v or str(getattr(i, k)) == v for k, v in items
+        ])
+
+    @classmethod
+    def __only_matches(cls, obj, kwargs):
+        if not kwargs:
+            return obj
+        return filter(lambda i: cls.__match_all(i, kwargs), obj)
+
+    def __init__(self, list_items, instance, name):
+        super(EmbeddedDocumentList, self).__init__(list_items, instance, name)
+        self._instance = instance
+
+    def filter(self, **kwargs):
+        """
+        Filters the list by only including embedded documents with the
+        given keyword arguments.
+
+        :param kwargs: The keyword arguments corresponding to the fields to
+         filter on. *Multiple arguments are treated as if they are ANDed
+         together.*
+        :return: A new ``EmbeddedDocumentList`` containing the matching
+         embedded documents.
+
+        Raises ``AttributeError`` if a given keyword is not a valid field for
+        the embedded document class.
+        """
+        values = self.__only_matches(self, kwargs)
+        return EmbeddedDocumentList(values, self._instance, self._name)
+
+    def exclude(self, **kwargs):
+        """
+        Filters the list by excluding embedded documents with the given
+        keyword arguments.
+
+        :param kwargs: The keyword arguments corresponding to the fields to
+         exclude on. *Multiple arguments are treated as if they are ANDed
+         together.*
+        :return: A new ``EmbeddedDocumentList`` containing the non-matching
+         embedded documents.
+
+        Raises ``AttributeError`` if a given keyword is not a valid field for
+        the embedded document class.
+        """
+        exclude = self.__only_matches(self, kwargs)
+        values = [item for item in self if item not in exclude]
+        return EmbeddedDocumentList(values, self._instance, self._name)
+
+    def count(self):
+        """
+        The number of embedded documents in the list.
+
+        :return: The length of the list, equivalent to the result of ``len()``.
+        """
+        return len(self)
+
+    def get(self, **kwargs):
+        """
+        Retrieves an embedded document determined by the given keyword
+        arguments.
+
+        :param kwargs: The keyword arguments corresponding to the fields to
+         search on. *Multiple arguments are treated as if they are ANDed
+         together.*
+        :return: The embedded document matched by the given keyword arguments.
+
+        Raises ``DoesNotExist`` if the arguments used to query an embedded
+        document returns no results. ``MultipleObjectsReturned`` if more
+        than one result is returned.
+        """
+        values = self.__only_matches(self, kwargs)
+        if len(values) == 0:
+            raise DoesNotExist(
+                "%s matching query does not exist." % self._name
+            )
+        elif len(values) > 1:
+            raise MultipleObjectsReturned(
+                "%d items returned, instead of 1" % len(values)
+            )
+
+        return values[0]
+
+    def first(self):
+        """
+        Returns the first embedded document in the list, or ``None`` if empty.
+        """
+        if len(self) > 0:
+            return self[0]
+
+    def create(self, **values):
+        """
+        Creates a new embedded document and saves it to the database.
+
+        .. note::
+            The embedded document changes are not automatically saved
+            to the database after calling this method.
+
+        :param values: A dictionary of values for the embedded document.
+        :return: The new embedded document instance.
+        """
+        name = self._name
+        EmbeddedClass = self._instance._fields[name].field.document_type_obj
+        self._instance[self._name].append(EmbeddedClass(**values))
+
+        return self._instance[self._name][-1]
+
+    def save(self, *args, **kwargs):
+        """
+        Saves the ancestor document.
+
+        :param args: Arguments passed up to the ancestor Document's save
+         method.
+        :param kwargs: Keyword arguments passed up to the ancestor Document's
+         save method.
+        """
+        self._instance.save(*args, **kwargs)
+
+    def delete(self):
+        """
+        Deletes the embedded documents from the database.
+
+        .. note::
+            The embedded document changes are not automatically saved
+            to the database after calling this method.
+
+        :return: The number of entries deleted.
+        """
+        values = list(self)
+        for item in values:
+            self._instance[self._name].remove(item)
+
+        return len(values)
+
+    def update(self, **update):
+        """
+        Updates the embedded documents with the given update values.
+
+        .. note::
+            The embedded document changes are not automatically saved
+            to the database after calling this method.
+
+        :param update: A dictionary of update values to apply to each
+         embedded document.
+        :return: The number of entries updated.
+        """
+        if len(update) == 0:
+            return 0
+        values = list(self)
+        for item in values:
+            for k, v in update.items():
+                setattr(item, k, v)
+
+        return len(values)
+
+
+class StrictDict(object):
+    __slots__ = ()
+    _special_fields = set(['get', 'pop', 'iteritems', 'items', 'keys', 'create'])
+    _classes = {}
+
+    def __init__(self, **kwargs):
+        for k, v in kwargs.iteritems():
+            setattr(self, k, v)
+
+    def __getitem__(self, key):
+        key = '_reserved_' + key if key in self._special_fields else key
+        try:
+            return getattr(self, key)
+        except AttributeError:
+            raise KeyError(key)
+
+    def __setitem__(self, key, value):
+        key = '_reserved_' + key if key in self._special_fields else key
+        return setattr(self, key, value)
+
+    def __contains__(self, key):
+        return hasattr(self, key)
+
+    def get(self, key, default=None):
+        try:
+            return self[key]
+        except KeyError:
+            return default
+
+    def pop(self, key, default=None):
+        v = self.get(key, default)
+        try:
+            delattr(self, key)
+        except AttributeError:
+            pass
+        return v
+
+    def iteritems(self):
+        for key in self:
+            yield key, self[key]
+
+    def items(self):
+        return [(k, self[k]) for k in iter(self)]
+
+    def iterkeys(self):
+        return iter(self)
+
+    def keys(self):
+        return list(iter(self))
+
+    def __iter__(self):
+        return (key for key in self.__slots__ if hasattr(self, key))
+
+    def __len__(self):
+        return len(list(self.iteritems()))
+
+    def __eq__(self, other):
+        return self.items() == other.items()
+
+    def __neq__(self, other):
+        return self.items() != other.items()
+
+    @classmethod
+    def create(cls, allowed_keys):
+        allowed_keys_tuple = tuple(('_reserved_' + k if k in cls._special_fields else k) for k in allowed_keys)
+        allowed_keys = frozenset(allowed_keys_tuple)
+        if allowed_keys not in cls._classes:
+            class SpecificStrictDict(cls):
+                __slots__ = allowed_keys_tuple
+
+                def __repr__(self):
+                    return "{%s}" % ', '.join('"{0!s}": {0!r}'.format(k) for k in self.iterkeys())
+
+            cls._classes[allowed_keys] = SpecificStrictDict
+        return cls._classes[allowed_keys]
+
+
+class SemiStrictDict(StrictDict):
+    __slots__ = ('_extras', )
+    _classes = {}
+
+    def __getattr__(self, attr):
+        try:
+            super(SemiStrictDict, self).__getattr__(attr)
+        except AttributeError:
+            try:
+                return self.__getattribute__('_extras')[attr]
+            except KeyError as e:
+                raise AttributeError(e)
+
+    def __setattr__(self, attr, value):
+        try:
+            super(SemiStrictDict, self).__setattr__(attr, value)
+        except AttributeError:
+            try:
+                self._extras[attr] = value
+            except AttributeError:
+                self._extras = {attr: value}
+
+    def __delattr__(self, attr):
+        try:
+            super(SemiStrictDict, self).__delattr__(attr)
+        except AttributeError:
+            try:
+                del self._extras[attr]
+            except KeyError as e:
+                raise AttributeError(e)
+
+    def __iter__(self):
+        try:
+            extras_iter = iter(self.__getattribute__('_extras'))
+        except AttributeError:
+            extras_iter = ()
+        return itertools.chain(super(SemiStrictDict, self).__iter__(), extras_iter)

mongoengine/base/document.py

@@ -1,22 +1,27 @@
 import copy
 import operator
 import numbers
+from collections import Hashable
 from functools import partial
 
 import pymongo
-from bson import json_util
+from bson import json_util, ObjectId
 from bson.dbref import DBRef
 from bson.son import SON
 
 from mongoengine import signals
 from mongoengine.common import _import_class
 from mongoengine.errors import (ValidationError, InvalidDocumentError,
-                                LookUpError)
-from mongoengine.python_support import (PY3, UNICODE_KWARGS, txt_type,
-                                        to_str_keys_recursive)
-
+                                LookUpError, FieldDoesNotExist)
+from mongoengine.python_support import PY3, txt_type
 from mongoengine.base.common import get_document, ALLOW_INHERITANCE
-from mongoengine.base.datastructures import BaseDict, BaseList
+from mongoengine.base.datastructures import (
+    BaseDict,
+    BaseList,
+    EmbeddedDocumentList,
+    StrictDict,
+    SemiStrictDict
+)
 from mongoengine.base.fields import ComplexBaseField
 
 __all__ = ('BaseDocument', 'NON_FIELD_ERRORS')
@@ -25,11 +30,12 @@ NON_FIELD_ERRORS = '__all__'
 
 
 class BaseDocument(object):
+    __slots__ = ('_changed_fields', '_initialised', '_created', '_data',
+                 '_dynamic_fields', '_auto_id_field', '_db_field_map', '__weakref__')
 
     _dynamic = False
-    _created = True
     _dynamic_lock = True
-    _initialised = False
+    STRICT = False
 
     def __init__(self, *args, **values):
         """
@@ -38,30 +44,61 @@ class BaseDocument(object):
         :param __auto_convert: Try and will cast python objects to Object types
         :param values: A dictionary of values for the document
         """
+        self._initialised = False
+        self._created = True
         if args:
             # Combine positional arguments with named arguments.
             # We only want named arguments.
             field = iter(self._fields_ordered)
+            # If its an automatic id field then skip to the first defined field
+            if self._auto_id_field:
+                next(field)
             for value in args:
                 name = next(field)
                 if name in values:
-                    raise TypeError("Multiple values for keyword argument '" + name + "'")
+                    raise TypeError(
+                        "Multiple values for keyword argument '" + name + "'")
                 values[name] = value
+
         __auto_convert = values.pop("__auto_convert", True)
+
+        # 399: set default values only to fields loaded from DB
+        __only_fields = set(values.pop("__only_fields", values))
+
+        _created = values.pop("_created", True)
+
         signals.pre_init.send(self.__class__, document=self, values=values)
 
-        self._data = {}
+        # Check if there are undefined fields supplied to the constructor,
+        # if so raise an Exception.
+        if not self._dynamic and (self._meta.get('strict', True) or _created):
+            for var in values.keys():
+                if var not in self._fields.keys() + ['id', 'pk', '_cls', '_text_score']:
+                    msg = (
+                        "The field '{0}' does not exist on the document '{1}'"
+                    ).format(var, self._class_name)
+                    raise FieldDoesNotExist(msg)
+
+        if self.STRICT and not self._dynamic:
+            self._data = StrictDict.create(allowed_keys=self._fields_ordered)()
+        else:
+            self._data = SemiStrictDict.create(
+                allowed_keys=self._fields_ordered)()
+
+        self._dynamic_fields = SON()
 
         # Assign default values to instance
         for key, field in self._fields.iteritems():
-            if self._db_field_map.get(key, key) in values:
+            if self._db_field_map.get(key, key) in __only_fields:
                 continue
             value = getattr(self, key, None)
             setattr(self, key, value)
 
+        if "_cls" not in values:
+            self._cls = self._class_name
+
         # Set passed values after initialisation
         if self._dynamic:
-            self._dynamic_fields = {}
             dynamic_data = {}
             for key, value in values.iteritems():
                 if key in self._fields or key == '_id':
@@ -93,6 +130,7 @@ class BaseDocument(object):
 
         # Flag initialised
         self._initialised = True
+        self._created = _created
         signals.post_init.send(self.__class__, document=self)
 
     def __delattr__(self, *args, **kwargs):
@@ -110,12 +148,12 @@ class BaseDocument(object):
         # Handle dynamic data only if an initialised dynamic document
         if self._dynamic and not self._dynamic_lock:
 
-            field = None
             if not hasattr(self, name) and not name.startswith('_'):
                 DynamicField = _import_class("DynamicField")
                 field = DynamicField(db_field=name)
                 field.name = name
                 self._dynamic_fields[name] = field
+                self._fields_ordered += (name,)
 
             if not name.startswith('_'):
                 value = self.__expand_dynamic_values(name, value)
@@ -125,45 +163,64 @@ class BaseDocument(object):
                 self._data[name] = value
                 if hasattr(self, '_changed_fields'):
                     self._mark_as_changed(name)
+        try:
+            self__created = self._created
+        except AttributeError:
+            self__created = True
 
-        if (self._is_document and not self._created and
-           name in self._meta.get('shard_key', tuple()) and
-           self._data.get(name) != value):
+        if (self._is_document and not self__created and
+                name in self._meta.get('shard_key', tuple()) and
+                self._data.get(name) != value):
             OperationError = _import_class('OperationError')
             msg = "Shard Keys are immutable. Tried to update %s" % name
             raise OperationError(msg)
 
+        try:
+            self__initialised = self._initialised
+        except AttributeError:
+            self__initialised = False
         # Check if the user has created a new instance of a class
-        if (self._is_document and self._initialised
-           and self._created and name == self._meta['id_field']):
-                super(BaseDocument, self).__setattr__('_created', False)
+        if (self._is_document and self__initialised and
+                self__created and name == self._meta.get('id_field')):
+            super(BaseDocument, self).__setattr__('_created', False)
 
         super(BaseDocument, self).__setattr__(name, value)
 
     def __getstate__(self):
         data = {}
-        for k in ('_changed_fields', '_initialised', '_created'):
-            data[k] = getattr(self, k)
+        for k in ('_changed_fields', '_initialised', '_created',
+                  '_dynamic_fields', '_fields_ordered'):
+            if hasattr(self, k):
+                data[k] = getattr(self, k)
         data['_data'] = self.to_mongo()
         return data
 
     def __setstate__(self, data):
         if isinstance(data["_data"], SON):
             data["_data"] = self.__class__._from_son(data["_data"])._data
-        for k in ('_changed_fields', '_initialised', '_created', '_data'):
-            setattr(self, k, data[k])
+        for k in ('_changed_fields', '_initialised', '_created', '_data',
+                  '_dynamic_fields'):
+            if k in data:
+                setattr(self, k, data[k])
+        if '_fields_ordered' in data:
+            if self._dynamic:
+                setattr(self, '_fields_ordered', data['_fields_ordered'])
+            else:
+                _super_fields_ordered = type(self)._fields_ordered
+                setattr(self, '_fields_ordered', _super_fields_ordered)
+
+        dynamic_fields = data.get('_dynamic_fields') or SON()
+        for k in dynamic_fields.keys():
+            setattr(self, k, data["_data"].get(k))
 
     def __iter__(self):
-        if 'id' in self._fields and 'id' not in self._fields_ordered:
-            return iter(('id', ) + self._fields_ordered)
-
         return iter(self._fields_ordered)
 
     def __getitem__(self, name):
         """Dictionary-style field access, return a field's value if present.
         """
         try:
-            if name in self._fields:
+            if name in self._fields_ordered:
                 return getattr(self, name)
         except AttributeError:
             pass
@@ -173,7 +230,7 @@ class BaseDocument(object):
         """Dictionary-style field access, set a field's value.
         """
         # Ensure that the field exists before settings its value
-        if name not in self._fields:
+        if not self._dynamic and name not in self._fields:
             raise KeyError(name)
         return setattr(self, name, value)
 
@@ -192,7 +249,7 @@ class BaseDocument(object):
             u = self.__str__()
         except (UnicodeEncodeError, UnicodeDecodeError):
             u = '[Bad Unicode data]'
-        repr_type = type(u)
+        repr_type = str if u is None else type(u)
         return repr_type('<%s: %s>' % (self.__class__.__name__, u))
 
     def __str__(self):
@@ -204,16 +261,19 @@ class BaseDocument(object):
         return txt_type('%s object' % self.__class__.__name__)
 
     def __eq__(self, other):
-        if isinstance(other, self.__class__) and hasattr(other, 'id'):
-            if self.id == other.id:
-                return True
+        if isinstance(other, self.__class__) and hasattr(other, 'id') and other.id is not None:
+            return self.id == other.id
+        if isinstance(other, DBRef):
+            return self._get_collection_name() == other.collection and self.id == other.id
+        if self.id is None:
+            return self is other
         return False
 
     def __ne__(self, other):
         return not self.__eq__(other)
 
     def __hash__(self):
-        if self.pk is None:
+        if getattr(self, 'pk', None) is None:
             # For new object
             return super(BaseDocument, self).__hash__()
         else:
@@ -229,19 +289,56 @@ class BaseDocument(object):
         """
         pass
 
-    def to_mongo(self):
-        """Return as SON data ready for use with MongoDB.
+    def get_text_score(self):
         """
+        Get text score from text query
+        """
+
+        if '_text_score' not in self._data:
+            raise InvalidDocumentError('This document is not originally built from a text query')
+
+        return self._data['_text_score']
+
+    def to_mongo(self, use_db_field=True, fields=None):
+        """
+        Return as SON data ready for use with MongoDB.
+        """
+        if not fields:
+            fields = []
+
         data = SON()
         data["_id"] = None
         data['_cls'] = self._class_name
+        EmbeddedDocumentField = _import_class("EmbeddedDocumentField")
+        # only root fields ['test1.a', 'test2'] => ['test1', 'test2']
+        root_fields = set([f.split('.')[0] for f in fields])
 
         for field_name in self:
+            if root_fields and field_name not in root_fields:
+                continue
+
             value = self._data.get(field_name, None)
             field = self._fields.get(field_name)
 
+            if field is None and self._dynamic:
+                field = self._dynamic_fields.get(field_name)
+
             if value is not None:
-                value = field.to_mongo(value)
+
+                if isinstance(field, EmbeddedDocumentField):
+                    if fields:
+                        key = '%s.' % field_name
+                        embedded_fields = [
+                            i.replace(key, '') for i in fields
+                            if i.startswith(key)]
+
+                    else:
+                        embedded_fields = []
+
+                    value = field.to_mongo(value, use_db_field=use_db_field,
+                                           fields=embedded_fields)
+                else:
+                    value = field.to_mongo(value)
 
             # Handle self generating fields
             if value is None and field._auto_gen:
@@ -249,29 +346,25 @@ class BaseDocument(object):
                 self._data[field_name] = value
 
             if value is not None:
-                data[field.db_field] = value
+                if use_db_field:
+                    data[field.db_field] = value
+                else:
+                    data[field.name] = value
 
         # If "_id" has not been set, then try and set it
-        if data["_id"] is None:
-            data["_id"] = self._data.get("id", None)
+        Document = _import_class("Document")
+        if isinstance(self, Document):
+            if data["_id"] is None:
+                data["_id"] = self._data.get("id", None)
 
         if data['_id'] is None:
             data.pop('_id')
 
         # Only add _cls if allow_inheritance is True
         if (not hasattr(self, '_meta') or
-           not self._meta.get('allow_inheritance', ALLOW_INHERITANCE)):
+                not self._meta.get('allow_inheritance', ALLOW_INHERITANCE)):
             data.pop('_cls')
 
-        if not self._dynamic:
-            return data
-
-        # Sort dynamic fields by key
-        dynamic_fields = sorted(self._dynamic_fields.iteritems(),
-                                key=operator.itemgetter(0))
-        for name, field in dynamic_fields:
-            data[name] = field.to_mongo(self._data.get(name, None))
-
         return data
 
     def validate(self, clean=True):
@@ -287,14 +380,12 @@ class BaseDocument(object):
                 errors[NON_FIELD_ERRORS] = error
 
         # Get a list of tuples of field names and their current values
-        fields = [(field, self._data.get(name))
-                  for name, field in self._fields.items()]
-        if self._dynamic:
-            fields += [(field, self._data.get(name))
-                       for name, field in self._dynamic_fields.items()]
+        fields = [(self._fields.get(name, self._dynamic_fields.get(name)),
+                   self._data.get(name)) for name in self._fields_ordered]
 
         EmbeddedDocumentField = _import_class("EmbeddedDocumentField")
-        GenericEmbeddedDocumentField = _import_class("GenericEmbeddedDocumentField")
+        GenericEmbeddedDocumentField = _import_class(
+            "GenericEmbeddedDocumentField")
 
         for field, value in fields:
             if value is not None:
@@ -316,25 +407,31 @@ class BaseDocument(object):
             pk = "None"
             if hasattr(self, 'pk'):
                 pk = self.pk
-            elif self._instance:
+            elif self._instance and hasattr(self._instance, 'pk'):
                 pk = self._instance.pk
             message = "ValidationError (%s:%s) " % (self._class_name, pk)
             raise ValidationError(message, errors=errors)
 
-    def to_json(self):
-        """Converts a document to JSON"""
-        return json_util.dumps(self.to_mongo())
+    def to_json(self, *args, **kwargs):
+        """Converts a document to JSON.
+        :param use_db_field: Set to True by default but enables the output of the json structure with the field names
+            and not the mongodb store db_names in case of set to False
+        """
+        use_db_field = kwargs.pop('use_db_field', True)
+        return json_util.dumps(self.to_mongo(use_db_field), *args, **kwargs)
 
     @classmethod
-    def from_json(cls, json_data):
+    def from_json(cls, json_data, created=False):
         """Converts json data to an unsaved document instance"""
-        return cls._from_son(json_util.loads(json_data))
+        return cls._from_son(json_util.loads(json_data), created=created)
 
     def __expand_dynamic_values(self, name, value):
         """expand any dynamic values to their correct types / values"""
         if not isinstance(value, (dict, list, tuple)):
             return value
 
+        EmbeddedDocumentListField = _import_class('EmbeddedDocumentListField')
+
         is_list = False
         if not hasattr(value, 'items'):
             is_list = True
@@ -357,8 +454,11 @@ class BaseDocument(object):
 
         # Convert lists / values so we can watch for any changes on them
         if (isinstance(value, (list, tuple)) and
-           not isinstance(value, BaseList)):
-            value = BaseList(value, self, name)
+                not isinstance(value, BaseList)):
+            if issubclass(type(self), EmbeddedDocumentListField):
+                value = EmbeddedDocumentList(value, self, name)
+            else:
+                value = BaseList(value, self, name)
         elif isinstance(value, dict) and not isinstance(value, BaseDict):
             value = BaseDict(value, self, name)
 
@@ -369,76 +469,122 @@ class BaseDocument(object):
         """
         if not key:
             return
-        key = self._db_field_map.get(key, key)
-        if (hasattr(self, '_changed_fields') and
-           key not in self._changed_fields):
-            self._changed_fields.append(key)
+
+        if not hasattr(self, '_changed_fields'):
+            return
+
+        if '.' in key:
+            key, rest = key.split('.', 1)
+            key = self._db_field_map.get(key, key)
+            key = '%s.%s' % (key, rest)
+        else:
+            key = self._db_field_map.get(key, key)
+
+        if key not in self._changed_fields:
+            levels, idx = key.split('.'), 1
+            while idx <= len(levels):
+                if '.'.join(levels[:idx]) in self._changed_fields:
+                    break
+                idx += 1
+            else:
+                self._changed_fields.append(key)
+                # remove lower level changed fields
+                level = '.'.join(levels[:idx]) + '.'
+                remove = self._changed_fields.remove
+                for field in self._changed_fields:
+                    if field.startswith(level):
+                        remove(field)
 
     def _clear_changed_fields(self):
+        """Using get_changed_fields iterate and remove any fields that are
+        marked as changed"""
+        for changed in self._get_changed_fields():
+            parts = changed.split(".")
+            data = self
+            for part in parts:
+                if isinstance(data, list):
+                    try:
+                        data = data[int(part)]
+                    except IndexError:
+                        data = None
+                elif isinstance(data, dict):
+                    data = data.get(part, None)
+                else:
+                    data = getattr(data, part, None)
+                if hasattr(data, "_changed_fields"):
+                    if hasattr(data, "_is_document") and data._is_document:
+                        continue
+                    data._changed_fields = []
         self._changed_fields = []
-        EmbeddedDocumentField = _import_class("EmbeddedDocumentField")
-        for field_name, field in self._fields.iteritems():
-            if (isinstance(field, ComplexBaseField) and
-               isinstance(field.field, EmbeddedDocumentField)):
-                field_value = getattr(self, field_name, None)
-                if field_value:
-                    for idx in (field_value if isinstance(field_value, dict)
-                                else xrange(len(field_value))):
-                        field_value[idx]._clear_changed_fields()
-            elif isinstance(field, EmbeddedDocumentField):
-                field_value = getattr(self, field_name, None)
-                if field_value:
-                    field_value._clear_changed_fields()
 
-    def _get_changed_fields(self, key='', inspected=None):
+    def _nestable_types_changed_fields(self, changed_fields, key, data, inspected):
+        # Loop list / dict fields as they contain documents
+        # Determine the iterator to use
+        if not hasattr(data, 'items'):
+            iterator = enumerate(data)
+        else:
+            iterator = data.iteritems()
+
+        for index, value in iterator:
+            list_key = "%s%s." % (key, index)
+            # don't check anything lower if this key is already marked
+            # as changed.
+            if list_key[:-1] in changed_fields:
+                continue
+            if hasattr(value, '_get_changed_fields'):
+                changed = value._get_changed_fields(inspected)
+                changed_fields += ["%s%s" % (list_key, k)
+                                   for k in changed if k]
+            elif isinstance(value, (list, tuple, dict)):
+                self._nestable_types_changed_fields(
+                    changed_fields, list_key, value, inspected)
+
+    def _get_changed_fields(self, inspected=None):
         """Returns a list of all fields that have explicitly been changed.
         """
         EmbeddedDocument = _import_class("EmbeddedDocument")
         DynamicEmbeddedDocument = _import_class("DynamicEmbeddedDocument")
-        _changed_fields = []
-        _changed_fields += getattr(self, '_changed_fields', [])
+        ReferenceField = _import_class("ReferenceField")
+        SortedListField = _import_class("SortedListField")
+        changed_fields = []
+        changed_fields += getattr(self, '_changed_fields', [])
 
         inspected = inspected or set()
-        if hasattr(self, 'id'):
+        if hasattr(self, 'id') and isinstance(self.id, Hashable):
             if self.id in inspected:
-                return _changed_fields
+                return changed_fields
             inspected.add(self.id)
 
-        field_list = self._fields.copy()
-        if self._dynamic:
-            field_list.update(self._dynamic_fields)
-
-        for field_name in field_list:
-
+        for field_name in self._fields_ordered:
             db_field_name = self._db_field_map.get(field_name, field_name)
             key = '%s.' % db_field_name
-            field = self._data.get(field_name, None)
-            if hasattr(field, 'id'):
-                if field.id in inspected:
-                    continue
-                inspected.add(field.id)
+            data = self._data.get(field_name, None)
+            field = self._fields.get(field_name)
 
-            if (isinstance(field, (EmbeddedDocument, DynamicEmbeddedDocument))
-               and db_field_name not in _changed_fields):
-                 # Find all embedded fields that have been changed
-                changed = field._get_changed_fields(key, inspected)
-                _changed_fields += ["%s%s" % (key, k) for k in changed if k]
-            elif (isinstance(field, (list, tuple, dict)) and
-                    db_field_name not in _changed_fields):
-                # Loop list / dict fields as they contain documents
-                # Determine the iterator to use
-                if not hasattr(field, 'items'):
-                    iterator = enumerate(field)
-                else:
-                    iterator = field.iteritems()
-                for index, value in iterator:
-                    if not hasattr(value, '_get_changed_fields'):
+            if hasattr(data, 'id'):
+                if data.id in inspected:
+                    continue
+            if isinstance(field, ReferenceField):
+                continue
+            elif (isinstance(data, (EmbeddedDocument, DynamicEmbeddedDocument))
+                  and db_field_name not in changed_fields):
+                # Find all embedded fields that have been changed
+                changed = data._get_changed_fields(inspected)
+                changed_fields += ["%s%s" % (key, k) for k in changed if k]
+            elif (isinstance(data, (list, tuple, dict)) and
+                    db_field_name not in changed_fields):
+                if (hasattr(field, 'field') and
+                        isinstance(field.field, ReferenceField)):
+                    continue
+                elif isinstance(field, SortedListField) and field._ordering:
+                    # if ordering is affected whole list is changed
+                    if any(map(lambda d: field._ordering in d._changed_fields, data)):
+                        changed_fields.append(db_field_name)
                         continue
-                    list_key = "%s%s." % (key, index)
-                    changed = value._get_changed_fields(list_key, inspected)
-                    _changed_fields += ["%s%s" % (list_key, k)
-                                        for k in changed if k]
-        return _changed_fields
+
+                self._nestable_types_changed_fields(
+                    changed_fields, key, data, inspected)
+        return changed_fields
 
     def _delta(self):
         """Returns the delta (set, unset) of the changes for a document.
@@ -448,7 +594,6 @@ class BaseDocument(object):
         doc = self.to_mongo()
 
         set_fields = self._get_changed_fields()
-        set_data = {}
         unset_data = {}
         parts = []
         if hasattr(self, '_changed_fields'):
@@ -459,10 +604,13 @@ class BaseDocument(object):
                 d = doc
                 new_path = []
                 for p in parts:
-                    if isinstance(d, DBRef):
+                    if isinstance(d, (ObjectId, DBRef)):
                         break
                     elif isinstance(d, list) and p.isdigit():
-                        d = d[int(p)]
+                        try:
+                            d = d[int(p)]
+                        except IndexError:
+                            d = None
                     elif hasattr(d, 'get'):
                         d = d.get(p)
                     new_path.append(p)
@@ -471,18 +619,18 @@ class BaseDocument(object):
         else:
             set_data = doc
             if '_id' in set_data:
-                del(set_data['_id'])
+                del set_data['_id']
 
         # Determine if any changed items were actually unset.
         for path, value in set_data.items():
             if value or isinstance(value, (numbers.Number, bool)):
                 continue
 
-            # If we've set a value that ain't the default value dont unset it.
+            # If we've set a value that ain't the default value don't unset it.
             default = None
             if (self._dynamic and len(parts) and parts[0] in
-               self._dynamic_fields):
-                del(set_data[path])
+                    self._dynamic_fields):
+                del set_data[path]
                 unset_data[path] = 1
                 continue
             elif path in self._fields:
@@ -516,29 +664,27 @@ class BaseDocument(object):
             if default != value:
                 continue
 
-            del(set_data[path])
+            del set_data[path]
             unset_data[path] = 1
         return set_data, unset_data
 
     @classmethod
     def _get_collection_name(cls):
-        """Returns the collection name for this class.
+        """Returns the collection name for this class. None for abstract class
         """
         return cls._meta.get('collection', None)
 
     @classmethod
-    def _from_son(cls, son, _auto_dereference=True):
+    def _from_son(cls, son, _auto_dereference=True, only_fields=None, created=False):
         """Create an instance of a Document (subclass) from a PyMongo SON.
         """
+        if not only_fields:
+            only_fields = []
 
         # get the class name from the document, falling back to the given
         # class if unavailable
         class_name = son.get('_cls', cls._class_name)
         data = dict(("%s" % key, value) for key, value in son.iteritems())
-        if not UNICODE_KWARGS:
-            # python 2.6.4 and lower cannot handle unicode keys
-            # passed to class constructor example: cls(**data)
-            to_str_keys_recursive(data)
 
         # Return correct subclass for document type
         if class_name != cls._class_name:
@@ -568,19 +714,24 @@ class BaseDocument(object):
                     default = default()
                 if isinstance(default, BaseDocument):
                     changed_fields.append(field_name)
+                elif not only_fields or field_name in only_fields:
+                    changed_fields.append(field_name)
 
         if errors_dict:
             errors = "\n".join(["%s - %s" % (k, v)
-                     for k, v in errors_dict.items()])
+                                for k, v in errors_dict.items()])
             msg = ("Invalid data to create a `%s` instance.\n%s"
                    % (cls._class_name, errors))
             raise InvalidDocumentError(msg)
 
-        obj = cls(__auto_convert=False, **data)
+        if cls.STRICT:
+            data = dict((k, v)
+                        for k, v in data.iteritems() if k in cls._fields)
+        obj = cls(__auto_convert=False, _created=created, __only_fields=only_fields, **data)
         obj._changed_fields = changed_fields
-        obj._created = False
         if not _auto_dereference:
             obj._fields = fields
+
         return obj
 
     @classmethod
@@ -599,7 +750,7 @@ class BaseDocument(object):
 
             spec_fields = [v['fields']
                            for k, v in enumerate(index_specs)]
-            # Merge unqiue_indexes with existing specs
+            # Merge unique_indexes with existing specs
             for k, v in enumerate(indices):
                 if v['fields'] in spec_fields:
                     index_specs[spec_fields.index(v['fields'])].update(v)
@@ -628,22 +779,39 @@ class BaseDocument(object):
         # Check to see if we need to include _cls
         allow_inheritance = cls._meta.get('allow_inheritance',
                                           ALLOW_INHERITANCE)
-        include_cls = allow_inheritance and not spec.get('sparse', False)
+        include_cls = (allow_inheritance and not spec.get('sparse', False) and
+                       spec.get('cls',  True) and '_cls' not in spec['fields'])
 
+        # 733: don't include cls if index_cls is False unless there is an explicit cls with the index
+        include_cls = include_cls and (spec.get('cls', False) or cls._meta.get('index_cls', True))
+        if "cls" in spec:
+            spec.pop('cls')
         for key in spec['fields']:
             # If inherited spec continue
             if isinstance(key, (list, tuple)):
                 continue
 
-            # ASCENDING from +,
+            # ASCENDING from +
             # DESCENDING from -
+            # TEXT from $
+            # HASHED from #
+            # GEOSPHERE from (
+            # GEOHAYSTACK from )
             # GEO2D from *
             direction = pymongo.ASCENDING
             if key.startswith("-"):
                 direction = pymongo.DESCENDING
+            elif key.startswith("$"):
+                direction = pymongo.TEXT
+            elif key.startswith("#"):
+                direction = pymongo.HASHED
+            elif key.startswith("("):
+                direction = pymongo.GEOSPHERE
+            elif key.startswith(")"):
+                direction = pymongo.GEOHAYSTACK
             elif key.startswith("*"):
                 direction = pymongo.GEO2D
-            if key.startswith(("+", "-", "*")):
+            if key.startswith(("+", "-", "*", "$", "#", "(", ")")):
                 key = key[1:]
 
             # Use real field name, do it manually because we need field
@@ -651,16 +819,22 @@ class BaseDocument(object):
             parts = key.split('.')
             if parts in (['pk'], ['id'], ['_id']):
                 key = '_id'
-                fields = []
             else:
                 fields = cls._lookup_field(parts)
-                parts = [field if field == '_id' else field.db_field
-                         for field in fields]
+                parts = []
+                for field in fields:
+                    try:
+                        if field != "_id":
+                            field = field.db_field
+                    except AttributeError:
+                        pass
+                    parts.append(field)
                 key = '.'.join(parts)
             index_list.append((key, direction))
 
         # Don't add cls to a geo index
-        if include_cls and direction is not pymongo.GEO2D:
+        if include_cls and direction not in (
+                pymongo.GEO2D, pymongo.GEOHAYSTACK, pymongo.GEOSPHERE):
             index_list.insert(0, ('_cls', 1))
 
         if index_list:
@@ -679,10 +853,9 @@ class BaseDocument(object):
         """
         unique_indexes = []
         for field_name, field in cls._fields.items():
-            sparse = False
+            sparse = field.sparse
             # Generate a list of indexes needed by uniqueness constraints
             if field.unique:
-                field.required = True
                 unique_fields = [field.db_field]
 
                 # Add any unique_with fields to the back of the index spec
@@ -710,9 +883,12 @@ class BaseDocument(object):
                 index = {'fields': fields, 'unique': True, 'sparse': sparse}
                 unique_indexes.append(index)
 
+            if field.__class__.__name__ == "ListField":
+                field = field.field
+
             # Grab any embedded document field unique indexes
             if (field.__class__.__name__ == "EmbeddedDocumentField" and
-               field.document_type != cls):
+                    field.document_type != cls):
                 field_namespace = "%s." % field_name
                 doc_cls = field.document_type
                 unique_indexes += doc_cls._unique_with_indexes(field_namespace)
@@ -728,7 +904,8 @@ class BaseDocument(object):
         geo_field_type_names = ["EmbeddedDocumentField", "GeoPointField",
                                 "PointField", "LineStringField", "PolygonField"]
 
-        geo_field_types = tuple([_import_class(field) for field in geo_field_type_names])
+        geo_field_types = tuple([_import_class(field)
+                                 for field in geo_field_type_names])
 
         for field in cls._fields.values():
             if not isinstance(field, geo_field_types):
@@ -738,13 +915,14 @@ class BaseDocument(object):
                 if field_cls in inspected:
                     continue
                 if hasattr(field_cls, '_geo_indices'):
-                    geo_indices += field_cls._geo_indices(inspected, parent_field=field.db_field)
+                    geo_indices += field_cls._geo_indices(
+                        inspected, parent_field=field.db_field)
             elif field._geo_index:
                 field_name = field.db_field
                 if parent_field:
                     field_name = "%s.%s" % (parent_field, field_name)
                 geo_indices.append({'fields':
-                                   [(field_name, field._geo_index)]})
+                                    [(field_name, field._geo_index)]})
         return geo_indices
 
     @classmethod
@@ -752,6 +930,10 @@ class BaseDocument(object):
         """Lookup a field based on its attribute and return a list containing
         the field's parents and the field.
         """
+
+        ListField = _import_class("ListField")
+        DynamicField = _import_class('DynamicField')
+
         if not isinstance(parts, (list, tuple)):
             parts = [parts]
         fields = []
@@ -759,8 +941,7 @@ class BaseDocument(object):
 
         for field_name in parts:
             # Handle ListField indexing:
-            if field_name.isdigit():
-                new_field = field.field
+            if field_name.isdigit() and isinstance(field, ListField):
                 fields.append(field_name)
                 continue
 
@@ -772,8 +953,19 @@ class BaseDocument(object):
                 if field_name in cls._fields:
                     field = cls._fields[field_name]
                 elif cls._dynamic:
-                    DynamicField = _import_class('DynamicField')
                     field = DynamicField(db_field=field_name)
+                elif cls._meta.get("allow_inheritance", False) or cls._meta.get("abstract", False):
+                    # 744: in case the field is defined in a subclass
+                    for subcls in cls.__subclasses__():
+                        try:
+                            field = subcls._lookup_field([field_name])[0]
+                        except LookUpError:
+                            continue
+
+                        if field is not None:
+                            break
+                    else:
+                        raise LookUpError('Cannot resolve field "%s"' % field_name)
                 else:
                     raise LookUpError('Cannot resolve field "%s"'
                                       % field_name)
@@ -785,9 +977,17 @@ class BaseDocument(object):
                                       '__'.join(parts))
                 if hasattr(getattr(field, 'field', None), 'lookup_member'):
                     new_field = field.field.lookup_member(field_name)
+                elif cls._dynamic and (isinstance(field, DynamicField) or
+                                       getattr(getattr(field, 'document_type'), '_dynamic')):
+                    new_field = DynamicField(db_field=field_name)
                 else:
-                   # Look up subfield on the previous field
-                    new_field = field.lookup_member(field_name)
+                    # Look up subfield on the previous field or raise
+                    try:
+                        new_field = field.lookup_member(field_name)
+                    except AttributeError:
+                        raise LookUpError('Cannot resolve subfield or operator {} '
+                                          'on the field {}'.format(
+                                              field_name, field.name))
                 if not new_field and isinstance(field, ComplexBaseField):
                     fields.append(field_name)
                     continue
@@ -810,7 +1010,11 @@ class BaseDocument(object):
         """Dynamically set the display value for a field with choices"""
         for attr_name, field in self._fields.items():
             if field.choices:
-                setattr(self,
+                if self._dynamic:
+                    obj = self
+                else:
+                    obj = type(self)
+                setattr(obj,
                         'get_%s_display' % attr_name,
                         partial(self.__get_field_display, field=field))
 

mongoengine/base/fields.py

@@ -7,11 +7,18 @@ import pymongo
 
 from mongoengine.common import _import_class
 from mongoengine.errors import ValidationError
-
 from mongoengine.base.common import ALLOW_INHERITANCE
-from mongoengine.base.datastructures import BaseDict, BaseList
+from mongoengine.base.datastructures import (
+    BaseDict, BaseList, EmbeddedDocumentList
+)
 
-__all__ = ("BaseField", "ComplexBaseField", "ObjectIdField", "GeoJsonBaseField")
+__all__ = ("BaseField", "ComplexBaseField",
+           "ObjectIdField", "GeoJsonBaseField")
+
+
+UPDATE_OPERATORS = set(['set', 'unset', 'inc', 'dec', 'pop', 'push',
+                        'push_all', 'pull', 'pull_all', 'add_to_set',
+                        'set_on_insert', 'min', 'max'])
 
 
 class BaseField(object):
@@ -35,8 +42,37 @@ class BaseField(object):
     def __init__(self, db_field=None, name=None, required=False, default=None,
                  unique=False, unique_with=None, primary_key=False,
                  validation=None, choices=None, verbose_name=None,
-                 help_text=None):
+                 help_text=None, null=False, sparse=False, custom_data=None):
+        """
+        :param db_field: The database field to store this field in
+            (defaults to the name of the field)
+        :param name: Depreciated - use db_field
+        :param required: If the field is required. Whether it has to have a
+            value or not. Defaults to False.
+        :param default: (optional) The default value for this field if no value
+            has been set (or if the value has been unset).  It can be a
+            callable.
+        :param unique: Is the field value unique or not.  Defaults to False.
+        :param unique_with: (optional) The other field this field should be
+            unique with.
+        :param primary_key: Mark this field as the primary key. Defaults to False.
+        :param validation: (optional) A callable to validate the value of the
+            field.  Generally this is deprecated in favour of the
+            `FIELD.validate` method
+        :param choices: (optional) The valid choices
+        :param verbose_name: (optional)  The verbose name for the field.
+            Designed to be human readable and is often used when generating
+            model forms from the document model.
+        :param help_text: (optional) The help text for this field and is often
+            used when generating model forms from the document model.
+        :param null: (optional) Is the field value can be null. If no and there is a default value
+            then the default value is set
+        :param sparse: (optional) `sparse=True` combined with `unique=True` and `required=False`
+            means that uniqueness won't be enforced for `None` values
+        :param custom_data: (optional) Custom metadata for this field.
+        """
         self.db_field = (db_field or name) if not primary_key else '_id'
+
         if name:
             msg = "Fields' 'name' attribute deprecated in favour of 'db_field'"
             warnings.warn(msg, DeprecationWarning)
@@ -49,6 +85,10 @@ class BaseField(object):
         self.choices = choices
         self.verbose_name = verbose_name
         self.help_text = help_text
+        self.null = null
+        self.sparse = sparse
+        self._owner_document = None
+        self.custom_data = custom_data
 
         # Adjust the appropriate creation counter, and save our local copy.
         if self.db_field == '_id':
@@ -59,38 +99,46 @@ class BaseField(object):
             BaseField.creation_counter += 1
 
     def __get__(self, instance, owner):
-        """Descriptor for retrieving a value from a field in a document. Do
-        any necessary conversion between Python and MongoDB types.
+        """Descriptor for retrieving a value from a field in a document.
         """
         if instance is None:
             # Document class being used rather than a document object
             return self
-        # Get value from document instance if available, if not use default
-        value = instance._data.get(self.name)
 
-        if value is None:
-            value = self.default
-            # Allow callable default values
-            if callable(value):
-                value = value()
-
-        EmbeddedDocument = _import_class('EmbeddedDocument')
-        if isinstance(value, EmbeddedDocument) and value._instance is None:
-            value._instance = weakref.proxy(instance)
-        return value
+        # Get value from document instance if available
+        return instance._data.get(self.name)
 
     def __set__(self, instance, value):
         """Descriptor for assigning a value to a field in a document.
         """
+
+        # If setting to None and there is a default
+        # Then set the value to the default value
+        if value is None:
+            if self.null:
+                value = None
+            elif self.default is not None:
+                value = self.default
+                if callable(value):
+                    value = value()
+
         if instance._initialised:
             try:
                 if (self.name not in instance._data or
-                   instance._data[self.name] != value):
+                        instance._data[self.name] != value):
                     instance._mark_as_changed(self.name)
             except:
                 # Values cant be compared eg: naive and tz datetimes
                 # So mark it as changed
                 instance._mark_as_changed(self.name)
+
+        EmbeddedDocument = _import_class('EmbeddedDocument')
+        if isinstance(value, EmbeddedDocument):
+            value._instance = weakref.proxy(instance)
+        elif isinstance(value, (list, tuple)):
+            for v in value:
+                if isinstance(v, EmbeddedDocument):
+                    v._instance = weakref.proxy(instance)
         instance._data[self.name] = value
 
     def error(self, message="", errors=None, field_name=None):
@@ -112,6 +160,8 @@ class BaseField(object):
     def prepare_query_value(self, op, value):
         """Prepare a value that is being used in a query for PyMongo.
         """
+        if op in UPDATE_OPERATORS:
+            self.validate(value)
         return value
 
     def validate(self, value, clean=True):
@@ -119,24 +169,29 @@ class BaseField(object):
         """
         pass
 
-    def _validate(self, value, **kwargs):
+    def _validate_choices(self, value):
         Document = _import_class('Document')
         EmbeddedDocument = _import_class('EmbeddedDocument')
-        # check choices
+
+        choice_list = self.choices
+        if isinstance(choice_list[0], (list, tuple)):
+            choice_list = [k for k, _ in choice_list]
+
+        # Choices which are other types of Documents
+        if isinstance(value, (Document, EmbeddedDocument)):
+            if not any(isinstance(value, c) for c in choice_list):
+                self.error(
+                    'Value must be instance of %s' % unicode(choice_list)
+                )
+        # Choices which are types other than Documents
+        elif value not in choice_list:
+            self.error('Value must be one of %s' % unicode(choice_list))
+
+
+    def _validate(self, value, **kwargs):
+        # Check the Choices Constraint
         if self.choices:
-            is_cls = isinstance(value, (Document, EmbeddedDocument))
-            value_to_check = value.__class__ if is_cls else value
-            err_msg = 'an instance' if is_cls else 'one'
-            if isinstance(self.choices[0], (list, tuple)):
-                option_keys = [k for k, v in self.choices]
-                if value_to_check not in option_keys:
-                    msg = ('Value must be %s of %s' %
-                           (err_msg, unicode(option_keys)))
-                    self.error(msg)
-            elif value_to_check not in self.choices:
-                msg = ('Value must be %s of %s' %
-                       (err_msg, unicode(self.choices)))
-                self.error(msg)
+            self._validate_choices(value)
 
         # check validation argument
         if self.validation is not None:
@@ -149,6 +204,17 @@ class BaseField(object):
 
         self.validate(value, **kwargs)
 
+    @property
+    def owner_document(self):
+        return self._owner_document
+
+    def _set_owner_document(self, owner_document):
+        self._owner_document = owner_document
+
+    @owner_document.setter
+    def owner_document(self, owner_document):
+        self._set_owner_document(owner_document)
+
 
 class ComplexBaseField(BaseField):
     """Handles complex fields, such as lists / dictionaries.
@@ -161,7 +227,6 @@ class ComplexBaseField(BaseField):
     """
 
     field = None
-    __dereference = False
 
     def __get__(self, instance, owner):
         """Descriptor to automatically dereference references.
@@ -172,13 +237,16 @@ class ComplexBaseField(BaseField):
 
         ReferenceField = _import_class('ReferenceField')
         GenericReferenceField = _import_class('GenericReferenceField')
+        EmbeddedDocumentListField = _import_class('EmbeddedDocumentListField')
         dereference = (self._auto_dereference and
                        (self.field is None or isinstance(self.field,
-                        (GenericReferenceField, ReferenceField))))
+                                                         (GenericReferenceField, ReferenceField))))
+
+        _dereference = _import_class("DeReference")()
 
         self._auto_dereference = instance._fields[self.name]._auto_dereference
-        if not self.__dereference and instance._initialised and dereference:
-            instance._data[self.name] = self._dereference(
+        if instance._initialised and dereference and instance._data.get(self.name):
+            instance._data[self.name] = _dereference(
                 instance._data.get(self.name), max_depth=1, instance=instance,
                 name=self.name
             )
@@ -186,18 +254,21 @@ class ComplexBaseField(BaseField):
         value = super(ComplexBaseField, self).__get__(instance, owner)
 
         # Convert lists / values so we can watch for any changes on them
-        if (isinstance(value, (list, tuple)) and
-           not isinstance(value, BaseList)):
-            value = BaseList(value, instance, self.name)
+        if isinstance(value, (list, tuple)):
+            if (issubclass(type(self), EmbeddedDocumentListField) and
+                    not isinstance(value, EmbeddedDocumentList)):
+                value = EmbeddedDocumentList(value, instance, self.name)
+            elif not isinstance(value, BaseList):
+                value = BaseList(value, instance, self.name)
             instance._data[self.name] = value
         elif isinstance(value, dict) and not isinstance(value, BaseDict):
             value = BaseDict(value, instance, self.name)
             instance._data[self.name] = value
 
         if (self._auto_dereference and instance._initialised and
-           isinstance(value, (BaseList, BaseDict))
-           and not value._dereferenced):
-            value = self._dereference(
+                isinstance(value, (BaseList, BaseDict)) and
+                not value._dereferenced):
+            value = _dereference(
                 value, max_depth=1, instance=instance, name=self.name
             )
             value._dereferenced = True
@@ -205,12 +276,6 @@ class ComplexBaseField(BaseField):
 
         return value
 
-    def __set__(self, instance, value):
-        """Descriptor for assigning a value to a field in a document.
-        """
-        instance._data[self.name] = value
-        instance._mark_as_changed(self.name)
-
     def to_python(self, value):
         """Convert a MongoDB-compatible type to a Python type.
         """
@@ -231,6 +296,7 @@ class ComplexBaseField(BaseField):
                 return value
 
         if self.field:
+            self.field._auto_dereference = self._auto_dereference
             value_dict = dict([(key, self.field.to_python(item))
                                for key, item in value.items()])
         else:
@@ -249,7 +315,7 @@ class ComplexBaseField(BaseField):
                     value_dict[k] = self.to_python(v)
 
         if is_list:  # Convert back to a list
-            return [v for k, v in sorted(value_dict.items(),
+            return [v for _, v in sorted(value_dict.items(),
                                          key=operator.itemgetter(0))]
         return value_dict
 
@@ -268,8 +334,8 @@ class ComplexBaseField(BaseField):
                 return GenericReferenceField().to_mongo(value)
             cls = value.__class__
             val = value.to_mongo()
-            # If we its a document thats not inherited add _cls
-            if (isinstance(value, EmbeddedDocument)):
+            # If it's a document that is not inherited add _cls
+            if isinstance(value, EmbeddedDocument):
                 val['_cls'] = cls.__name__
             return val
 
@@ -308,15 +374,15 @@ class ComplexBaseField(BaseField):
                 elif hasattr(v, 'to_mongo'):
                     cls = v.__class__
                     val = v.to_mongo()
-                    # If we its a document thats not inherited add _cls
-                    if (isinstance(v, (Document, EmbeddedDocument))):
+                    # If it's a document that is not inherited add _cls
+                    if isinstance(v, (Document, EmbeddedDocument)):
                         val['_cls'] = cls.__name__
                     value_dict[k] = val
                 else:
                     value_dict[k] = self.to_mongo(v)
 
         if is_list:  # Convert back to a list
-            return [v for k, v in sorted(value_dict.items(),
+            return [v for _, v in sorted(value_dict.items(),
                                          key=operator.itemgetter(0))]
         return value_dict
 
@@ -358,26 +424,17 @@ class ComplexBaseField(BaseField):
             self.field.owner_document = owner_document
         self._owner_document = owner_document
 
-    def _get_owner_document(self, owner_document):
-        self._owner_document = owner_document
-
-    owner_document = property(_get_owner_document, _set_owner_document)
-
-    @property
-    def _dereference(self,):
-        if not self.__dereference:
-            DeReference = _import_class("DeReference")
-            self.__dereference = DeReference()  # Cached
-        return self.__dereference
-
 
 class ObjectIdField(BaseField):
     """A field wrapper around MongoDB's ObjectIds.
     """
 
     def to_python(self, value):
-        if not isinstance(value, ObjectId):
-            value = ObjectId(value)
+        try:
+            if not isinstance(value, ObjectId):
+                value = ObjectId(value)
+        except:
+            pass
         return value
 
     def to_mongo(self, value):
@@ -401,6 +458,7 @@ class ObjectIdField(BaseField):
 
 class GeoJsonBaseField(BaseField):
     """A geo json field storing a geojson style object.
+
     .. versionadded:: 0.8
     """
 
@@ -409,8 +467,8 @@ class GeoJsonBaseField(BaseField):
 
     def __init__(self, auto_index=True, *args, **kwargs):
         """
-        :param auto_index: Automatically create a "2dsphere" index. Defaults
-            to `True`.
+        :param bool auto_index: Automatically create a "2dsphere" index.\
+            Defaults to `True`.
         """
         self._name = "%sField" % self._type
         if not auto_index:
@@ -423,7 +481,8 @@ class GeoJsonBaseField(BaseField):
         if isinstance(value, dict):
             if set(value.keys()) == set(['type', 'coordinates']):
                 if value['type'] != self._type:
-                    self.error('%s type must be "%s"' % (self._name, self._type))
+                    self.error('%s type must be "%s"' %
+                               (self._name, self._type))
                 return self.validate(value['coordinates'])
             else:
                 self.error('%s can only accept a valid GeoJson dictionary'
@@ -438,7 +497,7 @@ class GeoJsonBaseField(BaseField):
         if error:
             self.error(error)
 
-    def _validate_polygon(self, value):
+    def _validate_polygon(self, value, top_level=True):
         if not isinstance(value, (list, tuple)):
             return 'Polygons must contain list of linestrings'
 
@@ -456,7 +515,10 @@ class GeoJsonBaseField(BaseField):
             if error and error not in errors:
                 errors.append(error)
         if errors:
-            return "Invalid Polygon:\n%s" % ", ".join(errors)
+            if top_level:
+                return "Invalid Polygon:\n%s" % ", ".join(errors)
+            else:
+                return "%s" % ", ".join(errors)
 
     def _validate_linestring(self, value, top_level=True):
         """Validates a linestring"""
@@ -490,6 +552,66 @@ class GeoJsonBaseField(BaseField):
               not isinstance(value[1], (float, int))):
             return "Both values (%s) in point must be float or int" % repr(value)
 
+    def _validate_multipoint(self, value):
+        if not isinstance(value, (list, tuple)):
+            return 'MultiPoint must be a list of Point'
+
+        # Quick and dirty validator
+        try:
+            value[0][0]
+        except:
+            return "Invalid MultiPoint must contain at least one valid point"
+
+        errors = []
+        for point in value:
+            error = self._validate_point(point)
+            if error and error not in errors:
+                errors.append(error)
+
+        if errors:
+            return "%s" % ", ".join(errors)
+
+    def _validate_multilinestring(self, value, top_level=True):
+        if not isinstance(value, (list, tuple)):
+            return 'MultiLineString must be a list of LineString'
+
+        # Quick and dirty validator
+        try:
+            value[0][0][0]
+        except:
+            return "Invalid MultiLineString must contain at least one valid linestring"
+
+        errors = []
+        for linestring in value:
+            error = self._validate_linestring(linestring, False)
+            if error and error not in errors:
+                errors.append(error)
+
+        if errors:
+            if top_level:
+                return "Invalid MultiLineString:\n%s" % ", ".join(errors)
+            else:
+                return "%s" % ", ".join(errors)
+
+    def _validate_multipolygon(self, value):
+        if not isinstance(value, (list, tuple)):
+            return 'MultiPolygon must be a list of Polygon'
+
+        # Quick and dirty validator
+        try:
+            value[0][0][0][0]
+        except:
+            return "Invalid MultiPolygon must contain at least one valid Polygon"
+
+        errors = []
+        for polygon in value:
+            error = self._validate_polygon(polygon, False)
+            if error and error not in errors:
+                errors.append(error)
+
+        if errors:
+            return "Invalid MultiPolygon:\n%s" % ", ".join(errors)
+
     def to_mongo(self, value):
         if isinstance(value, dict):
             return value

mongoengine/base/metaclasses.py

@@ -1,13 +1,11 @@
 import warnings
 
-import pymongo
-
 from mongoengine.common import _import_class
 from mongoengine.errors import InvalidDocumentError
 from mongoengine.python_support import PY3
 from mongoengine.queryset import (DO_NOTHING, DoesNotExist,
                                   MultipleObjectsReturned,
-                                  QuerySet, QuerySetManager)
+                                  QuerySetManager)
 
 from mongoengine.base.common import _document_registry, ALLOW_INHERITANCE
 from mongoengine.base.fields import BaseField, ComplexBaseField, ObjectIdField
@@ -29,6 +27,7 @@ class DocumentMetaclass(type):
             return super_new(cls, name, bases, attrs)
 
         attrs['_is_document'] = attrs.get('_is_document', False)
+        attrs['_cached_reference_fields'] = []
 
         # EmbeddedDocuments could have meta data for inheritance
         if 'meta' in attrs:
@@ -44,6 +43,11 @@ class DocumentMetaclass(type):
                 elif hasattr(base, '_meta'):
                     meta.merge(base._meta)
             attrs['_meta'] = meta
+            attrs['_meta']['abstract'] = False  # 789: EmbeddedDocument shouldn't inherit abstract
+
+        if attrs['_meta'].get('allow_inheritance', ALLOW_INHERITANCE):
+            StringField = _import_class('StringField')
+            attrs['_cls'] = StringField()
 
         # Handle document Fields
 
@@ -90,12 +94,13 @@ class DocumentMetaclass(type):
         # Set _fields and db_field maps
         attrs['_fields'] = doc_fields
         attrs['_db_field_map'] = dict([(k, getattr(v, 'db_field', k))
-                                      for k, v in doc_fields.iteritems()])
+                                       for k, v in doc_fields.iteritems()])
+        attrs['_reverse_db_field_map'] = dict(
+            (v, k) for k, v in attrs['_db_field_map'].iteritems())
+
         attrs['_fields_ordered'] = tuple(i[1] for i in sorted(
                                          (v.creation_counter, v.name)
                                          for v in doc_fields.itervalues()))
-        attrs['_reverse_db_field_map'] = dict(
-            (v, k) for k, v in attrs['_db_field_map'].iteritems())
 
         #
         # Set document hierarchy
@@ -104,8 +109,8 @@ class DocumentMetaclass(type):
         class_name = [name]
         for base in flattened_bases:
             if (not getattr(base, '_is_base_cls', True) and
-               not getattr(base, '_meta', {}).get('abstract', True)):
-                # Collate heirarchy for _cls and _subclasses
+                    not getattr(base, '_meta', {}).get('abstract', True)):
+                # Collate hierarchy for _cls and _subclasses
                 class_name.append(base.__name__)
 
             if hasattr(base, '_meta'):
@@ -114,7 +119,7 @@ class DocumentMetaclass(type):
                 allow_inheritance = base._meta.get('allow_inheritance',
                                                    ALLOW_INHERITANCE)
                 if (allow_inheritance is not True and
-                   not base._meta.get('abstract')):
+                        not base._meta.get('abstract')):
                     raise ValueError('Document %s may not be subclassed' %
                                      base.__name__)
 
@@ -138,9 +143,10 @@ class DocumentMetaclass(type):
         for base in document_bases:
             if _cls not in base._subclasses:
                 base._subclasses += (_cls,)
-            base._types = base._subclasses   # TODO depreciate _types
+            base._types = base._subclasses  # TODO depreciate _types
 
-        Document, EmbeddedDocument, DictField = cls._import_classes()
+        (Document, EmbeddedDocument, DictField,
+         CachedReferenceField) = cls._import_classes()
 
         if issubclass(new_class, Document):
             new_class._collection = None
@@ -167,8 +173,23 @@ class DocumentMetaclass(type):
         # Handle delete rules
         for field in new_class._fields.itervalues():
             f = field
-            f.owner_document = new_class
+            if f.owner_document is None:
+                f.owner_document = new_class
             delete_rule = getattr(f, 'reverse_delete_rule', DO_NOTHING)
+            if isinstance(f, CachedReferenceField):
+
+                if issubclass(new_class, EmbeddedDocument):
+                    raise InvalidDocumentError(
+                        "CachedReferenceFields is not allowed in EmbeddedDocuments")
+                if not f.document_type:
+                    raise InvalidDocumentError(
+                        "Document is not available to sync")
+
+                if f.auto_sync:
+                    f.start_listener()
+
+                f.document_type._cached_reference_fields.append(f)
+
             if isinstance(f, ComplexBaseField) and hasattr(f, 'field'):
                 delete_rule = getattr(f.field,
                                       'reverse_delete_rule',
@@ -190,7 +211,7 @@ class DocumentMetaclass(type):
                                                      field.name, delete_rule)
 
             if (field.name and hasattr(Document, field.name) and
-               EmbeddedDocument not in new_class.mro()):
+                    EmbeddedDocument not in new_class.mro()):
                 msg = ("%s is a document method and not a valid "
                        "field name" % field.name)
                 raise InvalidDocumentError(msg)
@@ -223,7 +244,8 @@ class DocumentMetaclass(type):
         Document = _import_class('Document')
         EmbeddedDocument = _import_class('EmbeddedDocument')
         DictField = _import_class('DictField')
-        return (Document, EmbeddedDocument, DictField)
+        CachedReferenceField = _import_class('CachedReferenceField')
+        return Document, EmbeddedDocument, DictField, CachedReferenceField
 
 
 class TopLevelDocumentMetaclass(DocumentMetaclass):
@@ -236,7 +258,7 @@ class TopLevelDocumentMetaclass(DocumentMetaclass):
         super_new = super(TopLevelDocumentMetaclass, cls).__new__
 
         # Set default _meta data if base class, otherwise get user defined meta
-        if (attrs.get('my_metaclass') == TopLevelDocumentMetaclass):
+        if attrs.get('my_metaclass') == TopLevelDocumentMetaclass:
             # defaults
             attrs['_meta'] = {
                 'abstract': True,
@@ -255,7 +277,7 @@ class TopLevelDocumentMetaclass(DocumentMetaclass):
             attrs['_meta'].update(attrs.get('meta', {}))
         else:
             attrs['_meta'] = attrs.get('meta', {})
-            # Explictly set abstract to false unless set
+            # Explicitly set abstract to false unless set
             attrs['_meta']['abstract'] = attrs['_meta'].get('abstract', False)
             attrs['_is_base_cls'] = False
 
@@ -270,25 +292,25 @@ class TopLevelDocumentMetaclass(DocumentMetaclass):
 
         # Clean up top level meta
         if 'meta' in attrs:
-            del(attrs['meta'])
+            del attrs['meta']
 
         # Find the parent document class
         parent_doc_cls = [b for b in flattened_bases
-                        if b.__class__ == TopLevelDocumentMetaclass]
+                          if b.__class__ == TopLevelDocumentMetaclass]
         parent_doc_cls = None if not parent_doc_cls else parent_doc_cls[0]
 
         # Prevent classes setting collection different to their parents
         # If parent wasn't an abstract class
-        if (parent_doc_cls and 'collection' in attrs.get('_meta', {})
-            and not parent_doc_cls._meta.get('abstract', True)):
-                msg = "Trying to set a collection on a subclass (%s)" % name
-                warnings.warn(msg, SyntaxWarning)
-                del(attrs['_meta']['collection'])
+        if (parent_doc_cls and 'collection' in attrs.get('_meta', {}) and
+                not parent_doc_cls._meta.get('abstract', True)):
+            msg = "Trying to set a collection on a subclass (%s)" % name
+            warnings.warn(msg, SyntaxWarning)
+            del attrs['_meta']['collection']
 
         # Ensure abstract documents have abstract bases
         if attrs.get('_is_base_cls') or attrs['_meta'].get('abstract'):
             if (parent_doc_cls and
-                not parent_doc_cls._meta.get('abstract', False)):
+                    not parent_doc_cls._meta.get('abstract', False)):
                 msg = "Abstract document cannot have non-abstract base"
                 raise ValueError(msg)
             return super_new(cls, name, bases, attrs)
@@ -305,7 +327,7 @@ class TopLevelDocumentMetaclass(DocumentMetaclass):
 
             # Set collection in the meta if its callable
             if (getattr(base, '_is_document', False) and
-                not base._meta.get('abstract')):
+                    not base._meta.get('abstract')):
                 collection = meta.get('collection', None)
                 if callable(collection):
                     meta['collection'] = collection(base)
@@ -317,7 +339,7 @@ class TopLevelDocumentMetaclass(DocumentMetaclass):
         simple_class = all([b._meta.get('abstract')
                             for b in flattened_bases if hasattr(b, '_meta')])
         if (not simple_class and meta['allow_inheritance'] is False and
-           not meta['abstract']):
+                not meta['abstract']):
             raise ValueError('Only direct subclasses of Document may set '
                              '"allow_inheritance" to False')
 
@@ -358,11 +380,20 @@ class TopLevelDocumentMetaclass(DocumentMetaclass):
                     new_class.id = field
 
         # Set primary key if not defined by the document
+        new_class._auto_id_field = getattr(parent_doc_cls,
+                                           '_auto_id_field', False)
         if not new_class._meta.get('id_field'):
-            new_class._meta['id_field'] = 'id'
-            new_class._fields['id'] = ObjectIdField(db_field='_id')
-            new_class._fields['id'].name = 'id'
-            new_class.id = new_class._fields['id']
+            # After 0.10, find not existing names, instead of overwriting
+            id_name, id_db_name = cls.get_auto_id_names(new_class)
+            new_class._auto_id_field = True
+            new_class._meta['id_field'] = id_name
+            new_class._fields[id_name] = ObjectIdField(db_field=id_db_name)
+            new_class._fields[id_name].name = id_name
+            new_class.id = new_class._fields[id_name]
+            new_class._db_field_map[id_name] = id_db_name
+            new_class._reverse_db_field_map[id_db_name] = id_name
+            # Prepend id field to _fields_ordered
+            new_class._fields_ordered = (id_name, ) + new_class._fields_ordered
 
         # Merge in exceptions with parent hierarchy
         exceptions_to_merge = (DoesNotExist, MultipleObjectsReturned)
@@ -370,13 +401,27 @@ class TopLevelDocumentMetaclass(DocumentMetaclass):
         for exc in exceptions_to_merge:
             name = exc.__name__
             parents = tuple(getattr(base, name) for base in flattened_bases
-                         if hasattr(base, name)) or (exc,)
+                            if hasattr(base, name)) or (exc,)
             # Create new exception and set to new_class
             exception = type(name, parents, {'__module__': module})
             setattr(new_class, name, exception)
 
         return new_class
 
+    @classmethod
+    def get_auto_id_names(cls, new_class):
+        id_name, id_db_name = ('id', '_id')
+        if id_name not in new_class._fields and \
+                id_db_name not in (v.db_field for v in new_class._fields.values()):
+            return id_name, id_db_name
+        id_basename, id_db_basename, i = 'auto_id', '_auto_id', 0
+        while id_name in new_class._fields or \
+                id_db_name in (v.db_field for v in new_class._fields.values()):
+            id_name = '{0}_{1}'.format(id_basename, i)
+            id_db_name = '{0}_{1}'.format(id_db_basename, i)
+            i += 1
+        return id_name, id_db_name
+
 
 class MetaDict(dict):
     """Custom dictionary for meta classes.

mongoengine/common.py

@@ -1,18 +1,36 @@
 _class_registry_cache = {}
+_field_list_cache = []
 
 
 def _import_class(cls_name):
-    """Cached mechanism for imports"""
+    """Cache mechanism for imports.
+
+    Due to complications of circular imports mongoengine needs to do lots of
+    inline imports in functions.  This is inefficient as classes are
+    imported repeated throughout the mongoengine code.  This is
+    compounded by some recursive functions requiring inline imports.
+
+    :mod:`mongoengine.common` provides a single point to import all these
+    classes.  Circular imports aren't an issue as it dynamically imports the
+    class when first needed.  Subsequent calls to the
+    :func:`~mongoengine.common._import_class` can then directly retrieve the
+    class from the :data:`mongoengine.common._class_registry_cache`.
+    """
     if cls_name in _class_registry_cache:
         return _class_registry_cache.get(cls_name)
 
     doc_classes = ('Document', 'DynamicEmbeddedDocument', 'EmbeddedDocument',
                    'MapReduceDocument')
-    field_classes = ('DictField', 'DynamicField', 'EmbeddedDocumentField',
-                     'FileField', 'GenericReferenceField',
-                     'GenericEmbeddedDocumentField', 'GeoPointField',
-                     'PointField', 'LineStringField', 'PolygonField',
-                     'ReferenceField', 'StringField', 'ComplexBaseField')
+
+    # Field Classes
+    if not _field_list_cache:
+        from mongoengine.fields import __all__ as fields
+        _field_list_cache.extend(fields)
+        from mongoengine.base.fields import __all__ as fields
+        _field_list_cache.extend(fields)
+
+    field_classes = _field_list_cache
+
     queryset_classes = ('OperationError',)
     deref_classes = ('DeReference',)
 

mongoengine/connection.py

@@ -1,12 +1,16 @@
-import pymongo
-from pymongo import MongoClient, MongoReplicaSetClient, uri_parser
-
+from pymongo import MongoClient, ReadPreference, uri_parser
+from mongoengine.python_support import IS_PYMONGO_3
 
 __all__ = ['ConnectionError', 'connect', 'register_connection',
            'DEFAULT_CONNECTION_NAME']
 
 
 DEFAULT_CONNECTION_NAME = 'default'
+if IS_PYMONGO_3:
+    READ_PREFERENCE = ReadPreference.PRIMARY
+else:
+    from pymongo import MongoReplicaSetClient
+    READ_PREFERENCE = False
 
 
 class ConnectionError(Exception):
@@ -18,9 +22,10 @@ _connections = {}
 _dbs = {}
 
 
-def register_connection(alias, name, host='localhost', port=27017,
-                        is_slave=False, read_preference=False, slaves=None,
-                        username=None, password=None, **kwargs):
+def register_connection(alias, name=None, host=None, port=None,
+                        read_preference=READ_PREFERENCE,
+                        username=None, password=None, authentication_source=None,
+                        **kwargs):
     """Add a connection.
 
     :param alias: the name that will be used to refer to this connection
@@ -28,45 +33,44 @@ def register_connection(alias, name, host='localhost', port=27017,
     :param name: the name of the specific database to use
     :param host: the host name of the :program:`mongod` instance to connect to
     :param port: the port that the :program:`mongod` instance is running on
-    :param is_slave: whether the connection can act as a slave
-      ** Depreciated pymongo 2.0.1+
     :param read_preference: The read preference for the collection
        ** Added pymongo 2.1
-    :param slaves: a list of aliases of slave connections; each of these must
-        be a registered connection that has :attr:`is_slave` set to ``True``
     :param username: username to authenticate with
     :param password: password to authenticate with
+    :param authentication_source: database to authenticate against
     :param kwargs: allow ad-hoc parameters to be passed into the pymongo driver
 
     """
     global _connection_settings
 
     conn_settings = {
-        'name': name,
-        'host': host,
-        'port': port,
-        'is_slave': is_slave,
-        'slaves': slaves or [],
+        'name': name or 'test',
+        'host': host or 'localhost',
+        'port': port or 27017,
+        'read_preference': read_preference,
         'username': username,
         'password': password,
-        'read_preference': read_preference
+        'authentication_source': authentication_source
     }
 
     # Handle uri style connections
-    if "://" in host:
-        uri_dict = uri_parser.parse_uri(host)
-        if uri_dict.get('database') is None:
-            raise ConnectionError("If using URI style connection include "\
-                                  "database name in string")
+    if "://" in conn_settings['host']:
+        uri_dict = uri_parser.parse_uri(conn_settings['host'])
         conn_settings.update({
-            'host': host,
-            'name': uri_dict.get('database'),
+            'name': uri_dict.get('database') or name,
             'username': uri_dict.get('username'),
             'password': uri_dict.get('password'),
             'read_preference': read_preference,
         })
-        if "replicaSet" in host:
+        uri_options = uri_dict['options']
+        if 'replicaset' in uri_options:
             conn_settings['replicaSet'] = True
+        if 'authsource' in uri_options:
+            conn_settings['authentication_source'] = uri_options['authsource']
+
+    # Deprecated parameters that should not be passed on
+    kwargs.pop('slaves', None)
+    kwargs.pop('is_slave', None)
 
     conn_settings.update(kwargs)
     _connection_settings[alias] = conn_settings
@@ -77,7 +81,7 @@ def disconnect(alias=DEFAULT_CONNECTION_NAME):
     global _dbs
 
     if alias in _connections:
-        get_connection(alias=alias).disconnect()
+        get_connection(alias=alias).close()
         del _connections[alias]
     if alias in _dbs:
         del _dbs[alias]
@@ -97,33 +101,36 @@ def get_connection(alias=DEFAULT_CONNECTION_NAME, reconnect=False):
             raise ConnectionError(msg)
         conn_settings = _connection_settings[alias].copy()
 
-        if hasattr(pymongo, 'version_tuple'):  # Support for 2.1+
-            conn_settings.pop('name', None)
-            conn_settings.pop('slaves', None)
-            conn_settings.pop('is_slave', None)
-            conn_settings.pop('username', None)
-            conn_settings.pop('password', None)
-        else:
-            # Get all the slave connections
-            if 'slaves' in conn_settings:
-                slaves = []
-                for slave_alias in conn_settings['slaves']:
-                    slaves.append(get_connection(slave_alias))
-                conn_settings['slaves'] = slaves
-                conn_settings.pop('read_preference', None)
+        conn_settings.pop('name', None)
+        conn_settings.pop('username', None)
+        conn_settings.pop('password', None)
+        conn_settings.pop('authentication_source', None)
 
         connection_class = MongoClient
         if 'replicaSet' in conn_settings:
-            conn_settings['hosts_or_uri'] = conn_settings.pop('host', None)
             # Discard port since it can't be used on MongoReplicaSetClient
             conn_settings.pop('port', None)
             # Discard replicaSet if not base string
             if not isinstance(conn_settings['replicaSet'], basestring):
                 conn_settings.pop('replicaSet', None)
-            connection_class = MongoReplicaSetClient
+            if not IS_PYMONGO_3:
+                connection_class = MongoReplicaSetClient
+                conn_settings['hosts_or_uri'] = conn_settings.pop('host', None)
 
         try:
-            _connections[alias] = connection_class(**conn_settings)
+            connection = None
+            # check for shared connections
+            connection_settings_iterator = (
+                (db_alias, settings.copy()) for db_alias, settings in _connection_settings.iteritems())
+            for db_alias, connection_settings in connection_settings_iterator:
+                connection_settings.pop('name', None)
+                connection_settings.pop('username', None)
+                connection_settings.pop('password', None)
+                if conn_settings == connection_settings and _connections.get(db_alias, None):
+                    connection = _connections[db_alias]
+                    break
+
+            _connections[alias] = connection if connection else connection_class(**conn_settings)
         except Exception, e:
             raise ConnectionError("Cannot connect to database %s :\n%s" % (alias, e))
     return _connections[alias]
@@ -141,12 +148,13 @@ def get_db(alias=DEFAULT_CONNECTION_NAME, reconnect=False):
         # Authenticate if necessary
         if conn_settings['username'] and conn_settings['password']:
             db.authenticate(conn_settings['username'],
-                            conn_settings['password'])
+                            conn_settings['password'],
+                            source=conn_settings['authentication_source'])
         _dbs[alias] = db
     return _dbs[alias]
 
 
-def connect(db, alias=DEFAULT_CONNECTION_NAME, **kwargs):
+def connect(db=None, alias=DEFAULT_CONNECTION_NAME, **kwargs):
     """Connect to the database specified by the 'db' argument.
 
     Connection settings may be provided here as well if the database is not

mongoengine/context_managers.py

@@ -1,6 +1,5 @@
 from mongoengine.common import _import_class
 from mongoengine.connection import DEFAULT_CONNECTION_NAME, get_db
-from mongoengine.queryset import QuerySet
 
 
 __all__ = ("switch_db", "switch_collection", "no_dereference",
@@ -162,12 +161,6 @@ class no_sub_classes(object):
         return self.cls
 
 
-class QuerySetNoDeRef(QuerySet):
-    """Special no_dereference QuerySet"""
-    def __dereference(items, max_depth=1, instance=None, name=None):
-            return items
-
-
 class query_counter(object):
     """ Query_counter context manager to get the number of queries. """
 
@@ -189,7 +182,8 @@ class query_counter(object):
 
     def __eq__(self, value):
         """ == Compare querycounter. """
-        return value == self._get_count()
+        counter = self._get_count()
+        return value == counter
 
     def __ne__(self, value):
         """ != Compare querycounter. """
@@ -221,6 +215,7 @@ class query_counter(object):
 
     def _get_count(self):
         """ Get the number of queries. """
-        count = self.db.system.profile.find().count() - self.counter
+        ignore_query = {"ns": {"$ne": "%s.system.indexes" % self.db.name}}
+        count = self.db.system.profile.find(ignore_query).count() - self.counter
         self.counter += 1
         return count

mongoengine/dereference.py

@@ -1,18 +1,20 @@
 from bson import DBRef, SON
 
-from base import (BaseDict, BaseList, TopLevelDocumentMetaclass, get_document)
+from base import (
+    BaseDict, BaseList, EmbeddedDocumentList,
+    TopLevelDocumentMetaclass, get_document
+)
 from fields import (ReferenceField, ListField, DictField, MapField)
 from connection import get_db
 from queryset import QuerySet
-from document import Document
+from document import Document, EmbeddedDocument
 
 
 class DeReference(object):
-
     def __call__(self, items, max_depth=1, instance=None, name=None):
         """
         Cheaply dereferences the items to a set depth.
-        Also handles the convertion of complex data types.
+        Also handles the conversion of complex data types.
 
         :param items: The iterable (dict, list, queryset) to be dereferenced.
         :param max_depth: The maximum depth to recurse to
@@ -33,9 +35,10 @@ class DeReference(object):
         self.max_depth = max_depth
         doc_type = None
 
-        if instance and isinstance(instance, (Document, TopLevelDocumentMetaclass)):
+        if instance and isinstance(instance, (Document, EmbeddedDocument,
+                                              TopLevelDocumentMetaclass)):
             doc_type = instance._fields.get(name)
-            if hasattr(doc_type, 'field'):
+            while hasattr(doc_type, 'field'):
                 doc_type = doc_type.field
 
             if isinstance(doc_type, ReferenceField):
@@ -45,14 +48,24 @@ class DeReference(object):
 
                 if is_list and all([i.__class__ == doc_type for i in items]):
                     return items
-                elif not is_list and all([i.__class__ == doc_type
-                                         for i in items.values()]):
+                elif not is_list and all(
+                        [i.__class__ == doc_type for i in items.values()]):
                     return items
                 elif not field.dbref:
                     if not hasattr(items, 'items'):
-                        items = [field.to_python(v)
-                             if not isinstance(v, (DBRef, Document)) else v
-                             for v in items]
+
+                        def _get_items(items):
+                            new_items = []
+                            for v in items:
+                                if isinstance(v, list):
+                                    new_items.append(_get_items(v))
+                                elif not isinstance(v, (DBRef, Document)):
+                                    new_items.append(field.to_python(v))
+                                else:
+                                    new_items.append(v)
+                            return new_items
+
+                        items = _get_items(items)
                     else:
                         items = dict([
                             (k, field.to_python(v))
@@ -84,28 +97,28 @@ class DeReference(object):
         # Recursively find dbreferences
         depth += 1
         for k, item in iterator:
-            if isinstance(item, Document):
+            if isinstance(item, (Document, EmbeddedDocument)):
                 for field_name, field in item._fields.iteritems():
                     v = item._data.get(field_name, None)
-                    if isinstance(v, (DBRef)):
-                        reference_map.setdefault(field.document_type, []).append(v.id)
+                    if isinstance(v, DBRef):
+                        reference_map.setdefault(field.document_type, set()).add(v.id)
                     elif isinstance(v, (dict, SON)) and '_ref' in v:
-                        reference_map.setdefault(get_document(v['_cls']), []).append(v['_ref'].id)
+                        reference_map.setdefault(get_document(v['_cls']), set()).add(v['_ref'].id)
                     elif isinstance(v, (dict, list, tuple)) and depth <= self.max_depth:
                         field_cls = getattr(getattr(field, 'field', None), 'document_type', None)
                         references = self._find_references(v, depth)
                         for key, refs in references.iteritems():
                             if isinstance(field_cls, (Document, TopLevelDocumentMetaclass)):
                                 key = field_cls
-                            reference_map.setdefault(key, []).extend(refs)
-            elif isinstance(item, (DBRef)):
-                reference_map.setdefault(item.collection, []).append(item.id)
+                            reference_map.setdefault(key, set()).update(refs)
+            elif isinstance(item, DBRef):
+                reference_map.setdefault(item.collection, set()).add(item.id)
             elif isinstance(item, (dict, SON)) and '_ref' in item:
-                reference_map.setdefault(get_document(item['_cls']), []).append(item['_ref'].id)
+                reference_map.setdefault(get_document(item['_cls']), set()).add(item['_ref'].id)
             elif isinstance(item, (dict, list, tuple)) and depth - 1 <= self.max_depth:
                 references = self._find_references(item, depth - 1)
                 for key, refs in references.iteritems():
-                    reference_map.setdefault(key, []).extend(refs)
+                    reference_map.setdefault(key, set()).update(refs)
 
         return reference_map
 
@@ -113,34 +126,38 @@ class DeReference(object):
         """Fetch all references and convert to their document objects
         """
         object_map = {}
-        for col, dbrefs in self.reference_map.iteritems():
-            keys = object_map.keys()
-            refs = list(set([dbref for dbref in dbrefs if unicode(dbref).encode('utf-8') not in keys]))
-            if hasattr(col, 'objects'):  # We have a document class for the refs
-                references = col.objects.in_bulk(refs)
+        for collection, dbrefs in self.reference_map.iteritems():
+            if hasattr(collection, 'objects'):  # We have a document class for the refs
+                col_name = collection._get_collection_name()
+                refs = [dbref for dbref in dbrefs
+                        if (col_name, dbref) not in object_map]
+                references = collection.objects.in_bulk(refs)
                 for key, doc in references.iteritems():
-                    object_map[key] = doc
+                    object_map[(col_name, key)] = doc
             else:  # Generic reference: use the refs data to convert to document
                 if isinstance(doc_type, (ListField, DictField, MapField,)):
                     continue
 
+                refs = [dbref for dbref in dbrefs
+                        if (collection, dbref) not in object_map]
+
                 if doc_type:
-                    references = doc_type._get_db()[col].find({'_id': {'$in': refs}})
+                    references = doc_type._get_db()[collection].find({'_id': {'$in': refs}})
                     for ref in references:
                         doc = doc_type._from_son(ref)
-                        object_map[doc.id] = doc
+                        object_map[(collection, doc.id)] = doc
                 else:
-                    references = get_db()[col].find({'_id': {'$in': refs}})
+                    references = get_db()[collection].find({'_id': {'$in': refs}})
                     for ref in references:
                         if '_cls' in ref:
                             doc = get_document(ref["_cls"])._from_son(ref)
                         elif doc_type is None:
                             doc = get_document(
                                 ''.join(x.capitalize()
-                                    for x in col.split('_')))._from_son(ref)
+                                        for x in collection.split('_')))._from_son(ref)
                         else:
                             doc = doc_type._from_son(ref)
-                        object_map[doc.id] = doc
+                        object_map[(collection, doc.id)] = doc
         return object_map
 
     def _attach_objects(self, items, depth=0, instance=None, name=None):
@@ -166,14 +183,22 @@ class DeReference(object):
 
         if isinstance(items, (dict, SON)):
             if '_ref' in items:
-                return self.object_map.get(items['_ref'].id, items)
+                return self.object_map.get(
+                    (items['_ref'].collection, items['_ref'].id), items)
             elif '_cls' in items:
                 doc = get_document(items['_cls'])._from_son(items)
+                _cls = doc._data.pop('_cls', None)
+                del items['_cls']
                 doc._data = self._attach_objects(doc._data, depth, doc, None)
+                if _cls is not None:
+                    doc._data['_cls'] = _cls
                 return doc
 
         if not hasattr(items, 'items'):
             is_list = True
+            list_type = BaseList
+            if isinstance(items, EmbeddedDocumentList):
+                list_type = EmbeddedDocumentList
             as_tuple = isinstance(items, tuple)
             iterator = enumerate(items)
             data = []
@@ -191,25 +216,27 @@ class DeReference(object):
 
             if k in self.object_map and not is_list:
                 data[k] = self.object_map[k]
-            elif isinstance(v, Document):
+            elif isinstance(v, (Document, EmbeddedDocument)):
                 for field_name, field in v._fields.iteritems():
                     v = data[k]._data.get(field_name, None)
-                    if isinstance(v, (DBRef)):
-                        data[k]._data[field_name] = self.object_map.get(v.id, v)
+                    if isinstance(v, DBRef):
+                        data[k]._data[field_name] = self.object_map.get(
+                            (v.collection, v.id), v)
                     elif isinstance(v, (dict, SON)) and '_ref' in v:
-                        data[k]._data[field_name] = self.object_map.get(v['_ref'].id, v)
-                    elif isinstance(v, dict) and depth <= self.max_depth:
-                        data[k]._data[field_name] = self._attach_objects(v, depth, instance=instance, name=name)
-                    elif isinstance(v, (list, tuple)) and depth <= self.max_depth:
-                        data[k]._data[field_name] = self._attach_objects(v, depth, instance=instance, name=name)
+                        data[k]._data[field_name] = self.object_map.get(
+                            (v['_ref'].collection, v['_ref'].id), v)
+                    elif isinstance(v, (dict, list, tuple)) and depth <= self.max_depth:
+                        item_name = "{0}.{1}.{2}".format(name, k, field_name)
+                        data[k]._data[field_name] = self._attach_objects(v, depth, instance=instance, name=item_name)
             elif isinstance(v, (dict, list, tuple)) and depth <= self.max_depth:
-                data[k] = self._attach_objects(v, depth - 1, instance=instance, name=name)
+                item_name = '%s.%s' % (name, k) if name else name
+                data[k] = self._attach_objects(v, depth - 1, instance=instance, name=item_name)
             elif hasattr(v, 'id'):
-                data[k] = self.object_map.get(v.id, v)
+                data[k] = self.object_map.get((v.collection, v.id), v)
 
         if instance and name:
             if is_list:
-                return tuple(data) if as_tuple else BaseList(data, instance, name)
+                return tuple(data) if as_tuple else list_type(data, instance, name)
             return BaseDict(data, instance, name)
         depth += 1
         return data

mongoengine/django/auth.py

@@ -1,402 +0,0 @@
-from mongoengine import *
-
-from django.utils.encoding import smart_str
-from django.contrib.auth.models import _user_has_perm, _user_get_all_permissions, _user_has_module_perms
-from django.db import models
-from django.contrib.contenttypes.models import ContentTypeManager
-from django.contrib import auth
-from django.contrib.auth.models import AnonymousUser
-from django.utils.translation import ugettext_lazy as _
-
-try:
-    from django.contrib.auth.hashers import check_password, make_password
-except ImportError:
-    """Handle older versions of Django"""
-    from django.utils.hashcompat import md5_constructor, sha_constructor
-
-    def get_hexdigest(algorithm, salt, raw_password):
-        raw_password, salt = smart_str(raw_password), smart_str(salt)
-        if algorithm == 'md5':
-            return md5_constructor(salt + raw_password).hexdigest()
-        elif algorithm == 'sha1':
-            return sha_constructor(salt + raw_password).hexdigest()
-        raise ValueError('Got unknown password algorithm type in password')
-
-    def check_password(raw_password, password):
-        algo, salt, hash = password.split('$')
-        return hash == get_hexdigest(algo, salt, raw_password)
-
-    def make_password(raw_password):
-        from random import random
-        algo = 'sha1'
-        salt = get_hexdigest(algo, str(random()), str(random()))[:5]
-        hash = get_hexdigest(algo, salt, raw_password)
-        return '%s$%s$%s' % (algo, salt, hash)
-
-from .utils import datetime_now
-
-REDIRECT_FIELD_NAME = 'next'
-
-
-class ContentType(Document):
-    name = StringField(max_length=100)
-    app_label = StringField(max_length=100)
-    model = StringField(max_length=100, verbose_name=_('python model class name'),
-                        unique_with='app_label')
-    objects = ContentTypeManager()
-
-    class Meta:
-        verbose_name = _('content type')
-        verbose_name_plural = _('content types')
-        # db_table = 'django_content_type'
-        # ordering = ('name',)
-        # unique_together = (('app_label', 'model'),)
-
-    def __unicode__(self):
-        return self.name
-
-    def model_class(self):
-        "Returns the Python model class for this type of content."
-        from django.db import models
-        return models.get_model(self.app_label, self.model)
-
-    def get_object_for_this_type(self, **kwargs):
-        """
-        Returns an object of this type for the keyword arguments given.
-        Basically, this is a proxy around this object_type's get_object() model
-        method. The ObjectNotExist exception, if thrown, will not be caught,
-        so code that calls this method should catch it.
-        """
-        return self.model_class()._default_manager.using(self._state.db).get(**kwargs)
-
-    def natural_key(self):
-        return (self.app_label, self.model)
-
-
-class SiteProfileNotAvailable(Exception):
-    pass
-
-
-class PermissionManager(models.Manager):
-    def get_by_natural_key(self, codename, app_label, model):
-        return self.get(
-            codename=codename,
-            content_type=ContentType.objects.get_by_natural_key(app_label, model)
-        )
-
-
-class Permission(Document):
-    """The permissions system provides a way to assign permissions to specific
-    users and groups of users.
-
-    The permission system is used by the Django admin site, but may also be
-    useful in your own code. The Django admin site uses permissions as follows:
-
-        - The "add" permission limits the user's ability to view the "add"
-          form and add an object.
-        - The "change" permission limits a user's ability to view the change
-          list, view the "change" form and change an object.
-        - The "delete" permission limits the ability to delete an object.
-
-    Permissions are set globally per type of object, not per specific object
-    instance. It is possible to say "Mary may change news stories," but it's
-    not currently possible to say "Mary may change news stories, but only the
-    ones she created herself" or "Mary may only change news stories that have
-    a certain status or publication date."
-
-    Three basic permissions -- add, change and delete -- are automatically
-    created for each Django model.
-    """
-    name = StringField(max_length=50, verbose_name=_('username'))
-    content_type = ReferenceField(ContentType)
-    codename = StringField(max_length=100, verbose_name=_('codename'))
-        # FIXME: don't access field of the other class
-        # unique_with=['content_type__app_label', 'content_type__model'])
-
-    objects = PermissionManager()
-
-    class Meta:
-        verbose_name = _('permission')
-        verbose_name_plural = _('permissions')
-        # unique_together = (('content_type', 'codename'),)
-        # ordering = ('content_type__app_label', 'content_type__model', 'codename')
-
-    def __unicode__(self):
-        return u"%s | %s | %s" % (
-            unicode(self.content_type.app_label),
-            unicode(self.content_type),
-            unicode(self.name))
-
-    def natural_key(self):
-        return (self.codename,) + self.content_type.natural_key()
-    natural_key.dependencies = ['contenttypes.contenttype']
-
-
-class Group(Document):
-    """Groups are a generic way of categorizing users to apply permissions,
-    or some other label, to those users. A user can belong to any number of
-    groups.
-
-    A user in a group automatically has all the permissions granted to that
-    group. For example, if the group Site editors has the permission
-    can_edit_home_page, any user in that group will have that permission.
-
-    Beyond permissions, groups are a convenient way to categorize users to
-    apply some label, or extended functionality, to them. For example, you
-    could create a group 'Special users', and you could write code that would
-    do special things to those users -- such as giving them access to a
-    members-only portion of your site, or sending them members-only
-    e-mail messages.
-    """
-    name = StringField(max_length=80, unique=True, verbose_name=_('name'))
-    permissions = ListField(ReferenceField(Permission, verbose_name=_('permissions'), required=False))
-
-    class Meta:
-        verbose_name = _('group')
-        verbose_name_plural = _('groups')
-
-    def __unicode__(self):
-        return self.name
-
-
-class UserManager(models.Manager):
-    def create_user(self, username, email, password=None):
-        """
-        Creates and saves a User with the given username, e-mail and password.
-        """
-        now = datetime_now()
-
-        # Normalize the address by lowercasing the domain part of the email
-        # address.
-        try:
-            email_name, domain_part = email.strip().split('@', 1)
-        except ValueError:
-            pass
-        else:
-            email = '@'.join([email_name, domain_part.lower()])
-
-        user = self.model(username=username, email=email, is_staff=False,
-                          is_active=True, is_superuser=False, last_login=now,
-                          date_joined=now)
-
-        user.set_password(password)
-        user.save(using=self._db)
-        return user
-
-    def create_superuser(self, username, email, password):
-        u = self.create_user(username, email, password)
-        u.is_staff = True
-        u.is_active = True
-        u.is_superuser = True
-        u.save(using=self._db)
-        return u
-
-    def make_random_password(self, length=10, allowed_chars='abcdefghjkmnpqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ23456789'):
-        "Generates a random password with the given length and given allowed_chars"
-        # Note that default value of allowed_chars does not have "I" or letters
-        # that look like it -- just to avoid confusion.
-        from random import choice
-        return ''.join([choice(allowed_chars) for i in range(length)])
-
-
-class User(Document):
-    """A User document that aims to mirror most of the API specified by Django
-    at http://docs.djangoproject.com/en/dev/topics/auth/#users
-    """
-    username = StringField(max_length=30, required=True,
-                           verbose_name=_('username'),
-                           help_text=_("Required. 30 characters or fewer. Letters, numbers and @/./+/-/_ characters"))
-
-    first_name = StringField(max_length=30,
-                             verbose_name=_('first name'))
-
-    last_name = StringField(max_length=30,
-                            verbose_name=_('last name'))
-    email = EmailField(verbose_name=_('e-mail address'))
-    password = StringField(max_length=128,
-                           verbose_name=_('password'),
-                           help_text=_("Use '[algo]$[iterations]$[salt]$[hexdigest]' or use the <a href=\"password/\">change password form</a>."))
-    is_staff = BooleanField(default=False,
-                            verbose_name=_('staff status'),
-                            help_text=_("Designates whether the user can log into this admin site."))
-    is_active = BooleanField(default=True,
-                             verbose_name=_('active'),
-                             help_text=_("Designates whether this user should be treated as active. Unselect this instead of deleting accounts."))
-    is_superuser = BooleanField(default=False,
-                                verbose_name=_('superuser status'),
-                                help_text=_("Designates that this user has all permissions without explicitly assigning them."))
-    last_login = DateTimeField(default=datetime_now,
-                               verbose_name=_('last login'))
-    date_joined = DateTimeField(default=datetime_now,
-                                verbose_name=_('date joined'))
-
-    USERNAME_FIELD = 'username'
-    REQUIRED_FIELDS = ['email']
-
-    meta = {
-        'allow_inheritance': True,
-        'indexes': [
-            {'fields': ['username'], 'unique': True, 'sparse': True}
-        ]
-    }
-
-    def __unicode__(self):
-        return self.username
-
-    def get_full_name(self):
-        """Returns the users first and last names, separated by a space.
-        """
-        full_name = u'%s %s' % (self.first_name or '', self.last_name or '')
-        return full_name.strip()
-
-    def is_anonymous(self):
-        return False
-
-    def is_authenticated(self):
-        return True
-
-    def set_password(self, raw_password):
-        """Sets the user's password - always use this rather than directly
-        assigning to :attr:`~mongoengine.django.auth.User.password` as the
-        password is hashed before storage.
-        """
-        self.password = make_password(raw_password)
-        self.save()
-        return self
-
-    def check_password(self, raw_password):
-        """Checks the user's password against a provided password - always use
-        this rather than directly comparing to
-        :attr:`~mongoengine.django.auth.User.password` as the password is
-        hashed before storage.
-        """
-        return check_password(raw_password, self.password)
-
-    @classmethod
-    def create_user(cls, username, password, email=None):
-        """Create (and save) a new user with the given username, password and
-        email address.
-        """
-        now = datetime_now()
-
-        # Normalize the address by lowercasing the domain part of the email
-        # address.
-        if email is not None:
-            try:
-                email_name, domain_part = email.strip().split('@', 1)
-            except ValueError:
-                pass
-            else:
-                email = '@'.join([email_name, domain_part.lower()])
-
-        user = cls(username=username, email=email, date_joined=now)
-        user.set_password(password)
-        user.save()
-        return user
-
-    def get_group_permissions(self, obj=None):
-        """
-        Returns a list of permission strings that this user has through his/her
-        groups. This method queries all available auth backends. If an object
-        is passed in, only permissions matching this object are returned.
-        """
-        permissions = set()
-        for backend in auth.get_backends():
-            if hasattr(backend, "get_group_permissions"):
-                permissions.update(backend.get_group_permissions(self, obj))
-        return permissions
-
-    def get_all_permissions(self, obj=None):
-        return _user_get_all_permissions(self, obj)
-
-    def has_perm(self, perm, obj=None):
-        """
-        Returns True if the user has the specified permission. This method
-        queries all available auth backends, but returns immediately if any
-        backend returns True. Thus, a user who has permission from a single
-        auth backend is assumed to have permission in general. If an object is
-        provided, permissions for this specific object are checked.
-        """
-
-        # Active superusers have all permissions.
-        if self.is_active and self.is_superuser:
-            return True
-
-        # Otherwise we need to check the backends.
-        return _user_has_perm(self, perm, obj)
-
-    def has_module_perms(self, app_label):
-        """
-        Returns True if the user has any permissions in the given app label.
-        Uses pretty much the same logic as has_perm, above.
-        """
-        # Active superusers have all permissions.
-        if self.is_active and self.is_superuser:
-            return True
-
-        return _user_has_module_perms(self, app_label)
-
-    def email_user(self, subject, message, from_email=None):
-        "Sends an e-mail to this User."
-        from django.core.mail import send_mail
-        send_mail(subject, message, from_email, [self.email])
-
-    def get_profile(self):
-        """
-        Returns site-specific profile for this user. Raises
-        SiteProfileNotAvailable if this site does not allow profiles.
-        """
-        if not hasattr(self, '_profile_cache'):
-            from django.conf import settings
-            if not getattr(settings, 'AUTH_PROFILE_MODULE', False):
-                raise SiteProfileNotAvailable('You need to set AUTH_PROFILE_MO'
-                                              'DULE in your project settings')
-            try:
-                app_label, model_name = settings.AUTH_PROFILE_MODULE.split('.')
-            except ValueError:
-                raise SiteProfileNotAvailable('app_label and model_name should'
-                        ' be separated by a dot in the AUTH_PROFILE_MODULE set'
-                        'ting')
-
-            try:
-                model = models.get_model(app_label, model_name)
-                if model is None:
-                    raise SiteProfileNotAvailable('Unable to load the profile '
-                        'model, check AUTH_PROFILE_MODULE in your project sett'
-                        'ings')
-                self._profile_cache = model._default_manager.using(self._state.db).get(user__id__exact=self.id)
-                self._profile_cache.user = self
-            except (ImportError, ImproperlyConfigured):
-                raise SiteProfileNotAvailable
-        return self._profile_cache
-
-
-class MongoEngineBackend(object):
-    """Authenticate using MongoEngine and mongoengine.django.auth.User.
-    """
-
-    supports_object_permissions = False
-    supports_anonymous_user = False
-    supports_inactive_user = False
-
-    def authenticate(self, username=None, password=None):
-        user = User.objects(username=username).first()
-        if user:
-            if password and user.check_password(password):
-                backend = auth.get_backends()[0]
-                user.backend = "%s.%s" % (backend.__module__, backend.__class__.__name__)
-                return user
-        return None
-
-    def get_user(self, user_id):
-        return User.objects.with_id(user_id)
-
-
-def get_user(userid):
-    """Returns a User object from an id (User.id). Django's equivalent takes
-    request, but taking an id instead leaves it up to the developer to store
-    the id in any way they want (session, signed cookie, etc.)
-    """
-    if not userid:
-        return AnonymousUser()
-    return MongoEngineBackend().get_user(userid) or AnonymousUser()

mongoengine/django/mongo_auth/models.py

@@ -1,90 +0,0 @@
-from importlib import import_module
-
-from django.conf import settings
-from django.contrib.auth.models import UserManager
-from django.core.exceptions import ImproperlyConfigured
-from django.db import models
-from django.utils.translation import ugettext_lazy as _
-
-
-MONGOENGINE_USER_DOCUMENT = getattr(
-    settings, 'MONGOENGINE_USER_DOCUMENT', 'mongoengine.django.auth.User')
-
-
-class MongoUserManager(UserManager):
-    """A User manager wich allows the use of MongoEngine documents in Django.
-
-    To use the manager, you must tell django.contrib.auth to use MongoUser as
-    the user model. In you settings.py, you need:
-
-        INSTALLED_APPS = (
-            ...
-            'django.contrib.auth',
-            'mongoengine.django.mongo_auth',
-            ...
-        )
-        AUTH_USER_MODEL = 'mongo_auth.MongoUser'
-
-    Django will use the model object to access the custom Manager, which will
-    replace the original queryset with MongoEngine querysets.
-
-    By default, mongoengine.django.auth.User will be used to store users. You
-    can specify another document class in MONGOENGINE_USER_DOCUMENT in your
-    settings.py.
-
-    The User Document class has the same requirements as a standard custom user
-    model: https://docs.djangoproject.com/en/dev/topics/auth/customizing/
-
-    In particular, the User Document class must define USERNAME_FIELD and
-    REQUIRED_FIELDS.
-
-    `AUTH_USER_MODEL` has been added in Django 1.5.
-
-    """
-
-    def contribute_to_class(self, model, name):
-        super(MongoUserManager, self).contribute_to_class(model, name)
-        self.dj_model = self.model
-        self.model = self._get_user_document()
-
-        self.dj_model.USERNAME_FIELD = self.model.USERNAME_FIELD
-        username = models.CharField(_('username'), max_length=30, unique=True)
-        username.contribute_to_class(self.dj_model, self.dj_model.USERNAME_FIELD)
-
-        self.dj_model.REQUIRED_FIELDS = self.model.REQUIRED_FIELDS
-        for name in self.dj_model.REQUIRED_FIELDS:
-            field = models.CharField(_(name), max_length=30)
-            field.contribute_to_class(self.dj_model, name)
-
-    def _get_user_document(self):
-        try:
-            name = MONGOENGINE_USER_DOCUMENT
-            dot = name.rindex('.')
-            module = import_module(name[:dot])
-            return getattr(module, name[dot + 1:])
-        except ImportError:
-            raise ImproperlyConfigured("Error importing %s, please check "
-                                       "settings.MONGOENGINE_USER_DOCUMENT"
-                                       % name)
-
-    def get(self, *args, **kwargs):
-        try:
-            return self.get_query_set().get(*args, **kwargs)
-        except self.model.DoesNotExist:
-            # ModelBackend expects this exception
-            raise self.dj_model.DoesNotExist
-
-    @property
-    def db(self):
-        raise NotImplementedError
-
-    def get_empty_query_set(self):
-        return self.model.objects.none()
-
-    def get_query_set(self):
-        return self.model.objects
-
-
-class MongoUser(models.Model):
-    objects = MongoUserManager()
-

mongoengine/django/sessions.py

@@ -1,102 +0,0 @@
-from django.conf import settings
-from django.contrib.sessions.backends.base import SessionBase, CreateError
-from django.core.exceptions import SuspiciousOperation
-from django.utils.encoding import force_unicode
-
-from mongoengine.document import Document
-from mongoengine import fields
-from mongoengine.queryset import OperationError
-from mongoengine.connection import DEFAULT_CONNECTION_NAME
-
-from .utils import datetime_now
-
-
-MONGOENGINE_SESSION_DB_ALIAS = getattr(
-    settings, 'MONGOENGINE_SESSION_DB_ALIAS',
-    DEFAULT_CONNECTION_NAME)
-
-# a setting for the name of the collection used to store sessions
-MONGOENGINE_SESSION_COLLECTION = getattr(
-    settings, 'MONGOENGINE_SESSION_COLLECTION',
-    'django_session')
-
-# a setting for whether session data is stored encoded or not
-MONGOENGINE_SESSION_DATA_ENCODE = getattr(
-    settings, 'MONGOENGINE_SESSION_DATA_ENCODE',
-    True)
-
-
-class MongoSession(Document):
-    session_key = fields.StringField(primary_key=True, max_length=40)
-    session_data = fields.StringField() if MONGOENGINE_SESSION_DATA_ENCODE \
-                                        else fields.DictField()
-    expire_date = fields.DateTimeField()
-
-    meta = {
-        'collection': MONGOENGINE_SESSION_COLLECTION,
-        'db_alias': MONGOENGINE_SESSION_DB_ALIAS,
-        'allow_inheritance': False,
-        'indexes': [
-            {
-                'fields': ['expire_date'],
-                'expireAfterSeconds': settings.SESSION_COOKIE_AGE
-            }
-        ]
-    }
-
-    def get_decoded(self):
-        return SessionStore().decode(self.session_data)
-
-
-class SessionStore(SessionBase):
-    """A MongoEngine-based session store for Django.
-    """
-
-    def load(self):
-        try:
-            s = MongoSession.objects(session_key=self.session_key,
-                                     expire_date__gt=datetime_now)[0]
-            if MONGOENGINE_SESSION_DATA_ENCODE:
-                return self.decode(force_unicode(s.session_data))
-            else:
-                return s.session_data
-        except (IndexError, SuspiciousOperation):
-            self.create()
-            return {}
-
-    def exists(self, session_key):
-        return bool(MongoSession.objects(session_key=session_key).first())
-
-    def create(self):
-        while True:
-            self._session_key = self._get_new_session_key()
-            try:
-                self.save(must_create=True)
-            except CreateError:
-                continue
-            self.modified = True
-            self._session_cache = {}
-            return
-
-    def save(self, must_create=False):
-        if self.session_key is None:
-            self._session_key = self._get_new_session_key()
-        s = MongoSession(session_key=self.session_key)
-        if MONGOENGINE_SESSION_DATA_ENCODE:
-            s.session_data = self.encode(self._get_session(no_load=must_create))
-        else:
-            s.session_data = self._get_session(no_load=must_create)
-        s.expire_date = self.get_expiry_date()
-        try:
-            s.save(force_insert=must_create)
-        except OperationError:
-            if must_create:
-                raise CreateError
-            raise
-
-    def delete(self, session_key=None):
-        if session_key is None:
-            if self.session_key is None:
-                return
-            session_key = self.session_key
-        MongoSession.objects(session_key=session_key).delete()

mongoengine/django/shortcuts.py

@@ -1,47 +0,0 @@
-from mongoengine.queryset import QuerySet
-from mongoengine.base import BaseDocument
-from mongoengine.errors import ValidationError
-
-def _get_queryset(cls):
-    """Inspired by django.shortcuts.*"""
-    if isinstance(cls, QuerySet):
-        return cls
-    else:
-        return cls.objects
-
-def get_document_or_404(cls, *args, **kwargs):
-    """
-    Uses get() to return an document, or raises a Http404 exception if the document
-    does not exist.
-
-    cls may be a Document or QuerySet object. All other passed
-    arguments and keyword arguments are used in the get() query.
-
-    Note: Like with get(), an MultipleObjectsReturned will be raised if more than one
-    object is found.
-
-    Inspired by django.shortcuts.*
-    """
-    queryset = _get_queryset(cls)
-    try:
-        return queryset.get(*args, **kwargs)
-    except (queryset._document.DoesNotExist, ValidationError):
-        from django.http import Http404
-        raise Http404('No %s matches the given query.' % queryset._document._class_name)
-
-def get_list_or_404(cls, *args, **kwargs):
-    """
-    Uses filter() to return a list of documents, or raise a Http404 exception if
-    the list is empty.
-
-    cls may be a Document or QuerySet object. All other passed
-    arguments and keyword arguments are used in the filter() query.
-
-    Inspired by django.shortcuts.*
-    """
-    queryset = _get_queryset(cls)
-    obj_list = list(queryset.filter(*args, **kwargs))
-    if not obj_list:
-        from django.http import Http404
-        raise Http404('No %s matches the given query.' % queryset._document._class_name)
-    return obj_list

mongoengine/django/storage.py

@@ -1,112 +0,0 @@
-import os
-import itertools
-import urlparse
-
-from mongoengine import *
-from django.conf import settings
-from django.core.files.storage import Storage
-from django.core.exceptions import ImproperlyConfigured
-
-
-class FileDocument(Document):
-    """A document used to store a single file in GridFS.
-    """
-    file = FileField()
-
-
-class GridFSStorage(Storage):
-    """A custom storage backend to store files in GridFS
-    """
-
-    def __init__(self, base_url=None):
-
-        if base_url is None:
-            base_url = settings.MEDIA_URL
-        self.base_url = base_url
-        self.document = FileDocument
-        self.field = 'file'
-
-    def delete(self, name):
-        """Deletes the specified file from the storage system.
-        """
-        if self.exists(name):
-            doc = self.document.objects.first()
-            field = getattr(doc, self.field)
-            self._get_doc_with_name(name).delete()  # Delete the FileField
-            field.delete()                          # Delete the FileDocument
-
-    def exists(self, name):
-        """Returns True if a file referened by the given name already exists in the
-        storage system, or False if the name is available for a new file.
-        """
-        doc = self._get_doc_with_name(name)
-        if doc:
-            field = getattr(doc, self.field)
-            return bool(field.name)
-        else:
-            return False
-
-    def listdir(self, path=None):
-        """Lists the contents of the specified path, returning a 2-tuple of lists;
-        the first item being directories, the second item being files.
-        """
-        def name(doc):
-            return getattr(doc, self.field).name
-        docs = self.document.objects
-        return [], [name(d) for d in docs if name(d)]
-
-    def size(self, name):
-        """Returns the total size, in bytes, of the file specified by name.
-        """
-        doc = self._get_doc_with_name(name)
-        if doc:
-            return getattr(doc, self.field).length
-        else:
-            raise ValueError("No such file or directory: '%s'" % name)
-
-    def url(self, name):
-        """Returns an absolute URL where the file's contents can be accessed
-        directly by a web browser.
-        """
-        if self.base_url is None:
-            raise ValueError("This file is not accessible via a URL.")
-        return urlparse.urljoin(self.base_url, name).replace('\\', '/')
-
-    def _get_doc_with_name(self, name):
-        """Find the documents in the store with the given name
-        """
-        docs = self.document.objects
-        doc = [d for d in docs if getattr(d, self.field).name == name]
-        if doc:
-            return doc[0]
-        else:
-            return None
-
-    def _open(self, name, mode='rb'):
-        doc = self._get_doc_with_name(name)
-        if doc:
-            return getattr(doc, self.field)
-        else:
-            raise ValueError("No file found with the name '%s'." % name)
-
-    def get_available_name(self, name):
-        """Returns a filename that's free on the target storage system, and
-        available for new content to be written to.
-        """
-        file_root, file_ext = os.path.splitext(name)
-        # If the filename already exists, add an underscore and a number (before
-        # the file extension, if one exists) to the filename until the generated
-        # filename doesn't exist.
-        count = itertools.count(1)
-        while self.exists(name):
-            # file_ext includes the dot.
-            name = os.path.join("%s_%s%s" % (file_root, count.next(), file_ext))
-
-        return name
-
-    def _save(self, name, content):
-        doc = self.document()
-        getattr(doc, self.field).put(content, filename=name)
-        doc.save()
-
-        return name

mongoengine/django/tests.py

@@ -1,39 +0,0 @@
-#coding: utf-8
-from nose.plugins.skip import SkipTest
-
-from mongoengine.python_support import PY3
-from mongoengine import connect
-
-try:
-    from django.test import TestCase
-    from django.conf import settings
-except Exception as err:
-    if PY3:
-        from unittest import TestCase
-        # Dummy value so no error
-        class settings:
-            MONGO_DATABASE_NAME = 'dummy'
-    else:
-        raise err
-
-
-class MongoTestCase(TestCase):
-
-    def setUp(self):
-        if PY3:
-            raise SkipTest('django does not have Python 3 support')
-
-    """
-    TestCase class that clear the collection between the tests
-    """
-    db_name = 'test_%s' % settings.MONGO_DATABASE_NAME
-    def __init__(self, methodName='runtest'):
-        self.db = connect(self.db_name).get_db()
-        super(MongoTestCase, self).__init__(methodName)
-
-    def _post_teardown(self):
-        super(MongoTestCase, self)._post_teardown()
-        for collection in self.db.collection_names():
-            if collection == 'system.indexes':
-                continue
-            self.db.drop_collection(collection)

mongoengine/django/utils.py

@@ -1,6 +0,0 @@
-try:
-    # django >= 1.4
-    from django.utils.timezone import now as datetime_now
-except ImportError:
-    from datetime import datetime
-    datetime_now = datetime.now

mongoengine/document.py

@@ -1,14 +1,26 @@
 import warnings
-
 import pymongo
 import re
 
+from pymongo.read_preferences import ReadPreference
 from bson.dbref import DBRef
 from mongoengine import signals
-from mongoengine.base import (DocumentMetaclass, TopLevelDocumentMetaclass,
-                              BaseDocument, BaseDict, BaseList,
-                              ALLOW_INHERITANCE, get_document)
-from mongoengine.queryset import OperationError, NotUniqueError, QuerySet
+from mongoengine.common import _import_class
+from mongoengine.base import (
+    DocumentMetaclass,
+    TopLevelDocumentMetaclass,
+    BaseDocument,
+    BaseDict,
+    BaseList,
+    EmbeddedDocumentList,
+    ALLOW_INHERITANCE,
+    get_document
+)
+from mongoengine.errors import (InvalidQueryError, InvalidDocumentError,
+                                SaveConditionError)
+from mongoengine.python_support import IS_PYMONGO_3
+from mongoengine.queryset import (OperationError, NotUniqueError,
+                                  QuerySet, transform)
 from mongoengine.connection import get_db, DEFAULT_CONNECTION_NAME
 from mongoengine.context_managers import switch_db, switch_collection
 
@@ -17,6 +29,19 @@ __all__ = ('Document', 'EmbeddedDocument', 'DynamicDocument',
            'InvalidCollectionError', 'NotUniqueError', 'MapReduceDocument')
 
 
+def includes_cls(fields):
+    """ Helper function used for ensuring and comparing indexes
+    """
+
+    first_field = None
+    if len(fields):
+        if isinstance(fields[0], basestring):
+            first_field = fields[0]
+        elif isinstance(fields[0], (list, tuple)) and len(fields[0]):
+            first_field = fields[0][0]
+    return first_field == '_cls'
+
+
 class InvalidCollectionError(Exception):
     pass
 
@@ -36,15 +61,16 @@ class EmbeddedDocument(BaseDocument):
     dictionary.
     """
 
+    __slots__ = ('_instance', )
+
     # The __metaclass__ attribute is removed by 2to3 when running with Python3
     # my_metaclass is defined so that metaclass can be queried in Python 2 & 3
-    my_metaclass  = DocumentMetaclass
+    my_metaclass = DocumentMetaclass
     __metaclass__ = DocumentMetaclass
 
-    _instance = None
-
     def __init__(self, *args, **kwargs):
         super(EmbeddedDocument, self).__init__(*args, **kwargs)
+        self._instance = None
         self._changed_fields = []
 
     def __eq__(self, other):
@@ -52,6 +78,15 @@ class EmbeddedDocument(BaseDocument):
             return self._data == other._data
         return False
 
+    def __ne__(self, other):
+        return not self.__eq__(other)
+
+    def save(self, *args, **kwargs):
+        self._instance.save(*args, **kwargs)
+
+    def reload(self, *args, **kwargs):
+        self._instance.reload(*args, **kwargs)
+
 
 class Document(BaseDocument):
     """The base class used for defining the structure and properties of
@@ -78,9 +113,11 @@ class Document(BaseDocument):
     specifying :attr:`max_documents` and :attr:`max_size` in the :attr:`meta`
     dictionary. :attr:`max_documents` is the maximum number of documents that
     is allowed to be stored in the collection, and :attr:`max_size` is the
-    maximum size of the collection in bytes. If :attr:`max_size` is not
+    maximum size of the collection in bytes. :attr:`max_size` is rounded up
+    to the next multiple of 256 by MongoDB internally and mongoengine before.
+    Use also a multiple of 256 to avoid confusions.  If :attr:`max_size` is not
     specified and :attr:`max_documents` is, :attr:`max_size` defaults to
-    10000000 bytes (10MB).
+    10485760 bytes (10MB).
 
     Indexes may be created by specifying :attr:`indexes` in the :attr:`meta`
     dictionary. The value should be a list of field names or tuples of field
@@ -88,7 +125,7 @@ class Document(BaseDocument):
     a **+** or **-** sign.
 
     Automatic index creation can be disabled by specifying
-    attr:`auto_create_index` in the :attr:`meta` dictionary. If this is set to
+    :attr:`auto_create_index` in the :attr:`meta` dictionary. If this is set to
     False then indexes will not be created by MongoEngine.  This is useful in
     production systems where index creation is performed as part of a
     deployment system.
@@ -97,22 +134,34 @@ class Document(BaseDocument):
     doesn't contain a list) if allow_inheritance is True. This can be
     disabled by either setting cls to False on the specific index or
     by setting index_cls to False on the meta dictionary for the document.
+
+    By default, any extra attribute existing in stored data but not declared
+    in your model will raise a :class:`~mongoengine.FieldDoesNotExist` error.
+    This can be disabled by setting :attr:`strict` to ``False``
+    in the :attr:`meta` dictionary.
     """
 
     # The __metaclass__ attribute is removed by 2to3 when running with Python3
     # my_metaclass is defined so that metaclass can be queried in Python 2 & 3
-    my_metaclass  = TopLevelDocumentMetaclass
+    my_metaclass = TopLevelDocumentMetaclass
     __metaclass__ = TopLevelDocumentMetaclass
 
+    __slots__ = ('__objects',)
+
     def pk():
         """Primary key alias
         """
+
         def fget(self):
+            if 'id_field' not in self._meta:
+                return None
             return getattr(self, self._meta['id_field'])
 
         def fset(self, value):
             return setattr(self, self._meta['id_field'], value)
+
         return property(fget, fset)
+
     pk = pk()
 
     @classmethod
@@ -123,14 +172,18 @@ class Document(BaseDocument):
     @classmethod
     def _get_collection(cls):
         """Returns the collection for the document."""
+        # TODO: use new get_collection() with PyMongo3 ?
         if not hasattr(cls, '_collection') or cls._collection is None:
             db = cls._get_db()
             collection_name = cls._get_collection_name()
             # Create collection as a capped collection if specified
-            if cls._meta['max_size'] or cls._meta['max_documents']:
+            if cls._meta.get('max_size') or cls._meta.get('max_documents'):
                 # Get max document limit and max byte size from meta
-                max_size = cls._meta['max_size'] or 10000000  # 10MB default
-                max_documents = cls._meta['max_documents']
+                max_size = cls._meta.get('max_size') or 10 * 2 ** 20  # 10MB default
+                max_documents = cls._meta.get('max_documents')
+                # Round up to next 256 bytes as MongoDB would do it to avoid exception
+                if max_size % 256:
+                    max_size = (max_size // 256 + 1) * 256
 
                 if collection_name in db.collection_names():
                     cls._collection = db[collection_name]
@@ -138,9 +191,9 @@ class Document(BaseDocument):
                     # options match the specified capped options
                     options = cls._collection.options()
                     if options.get('max') != max_documents or \
-                       options.get('size') != max_size:
+                            options.get('size') != max_size:
                         msg = (('Cannot create collection "%s" as a capped '
-                               'collection as it already exists')
+                                'collection as it already exists')
                                % cls._collection)
                         raise InvalidCollectionError(msg)
                 else:
@@ -157,9 +210,47 @@ class Document(BaseDocument):
                 cls.ensure_indexes()
         return cls._collection
 
+    def modify(self, query={}, **update):
+        """Perform an atomic update of the document in the database and reload
+        the document object using updated version.
+
+        Returns True if the document has been updated or False if the document
+        in the database doesn't match the query.
+
+        .. note:: All unsaved changes that has been made to the document are
+            rejected if the method returns True.
+
+        :param query: the update will be performed only if the document in the
+            database matches the query
+        :param update: Django-style update keyword arguments
+        """
+
+        if self.pk is None:
+            raise InvalidDocumentError("The document does not have a primary key.")
+
+        id_field = self._meta["id_field"]
+        query = query.copy() if isinstance(query, dict) else query.to_query(self)
+
+        if id_field not in query:
+            query[id_field] = self.pk
+        elif query[id_field] != self.pk:
+            raise InvalidQueryError("Invalid document modify query: it must modify only this document.")
+
+        updated = self._qs(**query).modify(new=True, **update)
+        if updated is None:
+            return False
+
+        for field in self._fields_ordered:
+            setattr(self, field, self._reload(field, updated[field]))
+
+        self._changed_fields = updated._changed_fields
+        self._created = False
+
+        return True
+
     def save(self, force_insert=False, validate=True, clean=True,
-             write_concern=None,  cascade=None, cascade_kwargs=None,
-             _refs=None, **kwargs):
+             write_concern=None, cascade=None, cascade_kwargs=None,
+             _refs=None, save_condition=None, **kwargs):
         """Save the :class:`~mongoengine.Document` to the database. If the
         document already exists, it will be updated, otherwise it will be
         created.
@@ -179,9 +270,12 @@ class Document(BaseDocument):
             will force an fsync on the primary server.
         :param cascade: Sets the flag for cascading saves.  You can set a
             default by setting "cascade" in the document __meta__
-        :param cascade_kwargs: optional kwargs dictionary to be passed throw
-            to cascading saves
+        :param cascade_kwargs: (optional) kwargs dictionary to be passed throw
+            to cascading saves.  Implies ``cascade=True``.
         :param _refs: A list of processed references used in cascading saves
+        :param save_condition: only perform save if matching record in db
+            satisfies condition(s) (e.g. version number).
+            Raises :class:`OperationError` if the conditions are not satisfied
 
         .. versionchanged:: 0.5
             In existing documents it only saves changed fields using
@@ -189,36 +283,62 @@ class Document(BaseDocument):
             :class:`~bson.dbref.DBRef` objects that have changes are
             saved as well.
         .. versionchanged:: 0.6
-            Cascade saves are optional = defaults to True, if you want
+            Added cascading saves
+        .. versionchanged:: 0.8
+            Cascade saves are optional and default to False.  If you want
             fine grain control then you can turn off using document
-            meta['cascade'] = False  Also you can pass different kwargs to
+            meta['cascade'] = True.  Also you can pass different kwargs to
             the cascade save using cascade_kwargs which overwrites the
-            existing kwargs with custom values
+            existing kwargs with custom values.
+        .. versionchanged:: 0.8.5
+            Optional save_condition that only overwrites existing documents
+            if the condition is satisfied in the current db record.
+        .. versionchanged:: 0.10
+            :class:`OperationError` exception raised if save_condition fails.
+        .. versionchanged:: 0.10.1
+            :class: save_condition failure now raises a `SaveConditionError`
         """
         signals.pre_save.send(self.__class__, document=self)
 
         if validate:
             self.validate(clean=clean)
 
-        if not write_concern:
-            write_concern = {}
+        if write_concern is None:
+            write_concern = {"w": 1}
 
         doc = self.to_mongo()
 
         created = ('_id' not in doc or self._created or force_insert)
 
+        signals.pre_save_post_validation.send(self.__class__, document=self,
+                                              created=created)
+
         try:
             collection = self._get_collection()
+            if self._meta.get('auto_create_index', True):
+                self.ensure_indexes()
             if created:
                 if force_insert:
                     object_id = collection.insert(doc, **write_concern)
                 else:
                     object_id = collection.save(doc, **write_concern)
+                    # In PyMongo 3.0, the save() call calls internally the _update() call
+                    # but they forget to return the _id value passed back, therefore getting it back here
+                    # Correct behaviour in 2.X and in 3.0.1+ versions
+                    if not object_id and pymongo.version_tuple == (3, 0):
+                        pk_as_mongo_obj = self._fields.get(self._meta['id_field']).to_mongo(self.pk)
+                        object_id = self._qs.filter(pk=pk_as_mongo_obj).first() and \
+                                    self._qs.filter(pk=pk_as_mongo_obj).first().pk
             else:
                 object_id = doc['_id']
                 updates, removals = self._delta()
                 # Need to add shard key to query, or you get an error
-                select_dict = {'_id': object_id}
+                if save_condition is not None:
+                    select_dict = transform.query(self.__class__,
+                                                  **save_condition)
+                else:
+                    select_dict = {}
+                select_dict['_id'] = object_id
                 shard_key = self.__class__._meta.get('shard_key', tuple())
                 for k in shard_key:
                     actual_key = self._db_field_map.get(k, k)
@@ -238,12 +358,18 @@ class Document(BaseDocument):
                 if removals:
                     update_query["$unset"] = removals
                 if updates or removals:
+                    upsert = save_condition is None
                     last_error = collection.update(select_dict, update_query,
-                                                   upsert=True, **write_concern)
+                                                   upsert=upsert, **write_concern)
+                    if not upsert and last_error["n"] == 0:
+                        raise SaveConditionError('Race condition preventing'
+                                                 ' document update detected')
                     created = is_new_object(last_error)
 
-            cascade = (self._meta.get('cascade', True)
-                       if cascade is None else cascade)
+            if cascade is None:
+                cascade = self._meta.get(
+                    'cascade', False) or cascade_kwargs is not None
+
             if cascade:
                 kwargs = {
                     "force_insert": force_insert,
@@ -255,7 +381,9 @@ class Document(BaseDocument):
                     kwargs.update(cascade_kwargs)
                 kwargs['_refs'] = _refs
                 self.cascade_save(**kwargs)
-
+        except pymongo.errors.DuplicateKeyError, err:
+            message = u'Tried to save duplicate unique keys (%s)'
+            raise NotUniqueError(message % unicode(err))
         except pymongo.errors.OperationFailure, err:
             message = 'Could not save document (%s)'
             if re.match('^E1100[01] duplicate key', unicode(err)):
@@ -265,26 +393,28 @@ class Document(BaseDocument):
                 raise NotUniqueError(message % unicode(err))
             raise OperationError(message % unicode(err))
         id_field = self._meta['id_field']
-        if id_field not in self._meta.get('shard_key', []):
+        if created or id_field not in self._meta.get('shard_key', []):
             self[id_field] = self._fields[id_field].to_python(object_id)
 
+        signals.post_save.send(self.__class__, document=self, created=created)
         self._clear_changed_fields()
         self._created = False
-        signals.post_save.send(self.__class__, document=self, created=created)
         return self
 
     def cascade_save(self, *args, **kwargs):
         """Recursively saves any references /
            generic references on an objects"""
-        import fields
         _refs = kwargs.get('_refs', []) or []
 
+        ReferenceField = _import_class('ReferenceField')
+        GenericReferenceField = _import_class('GenericReferenceField')
+
         for name, cls in self._fields.items():
-            if not isinstance(cls, (fields.ReferenceField,
-                                    fields.GenericReferenceField)):
+            if not isinstance(cls, (ReferenceField,
+                                    GenericReferenceField)):
                 continue
 
-            ref = getattr(self, name)
+            ref = self._data.get(name)
             if not ref or isinstance(ref, DBRef):
                 continue
 
@@ -325,7 +455,14 @@ class Document(BaseDocument):
         been saved.
         """
         if not self.pk:
-            raise OperationError('attempt to update a document not yet saved')
+            if kwargs.get('upsert', False):
+                query = self.to_mongo()
+                if "_cls" in query:
+                    del query["_cls"]
+                return self._qs.filter(**query).update_one(**kwargs)
+            else:
+                raise OperationError(
+                    'attempt to update a document not yet saved')
 
         # Need to add shard key to query, or you get an error
         return self._qs.filter(**self._object_key).update_one(**kwargs)
@@ -343,15 +480,21 @@ class Document(BaseDocument):
         """
         signals.pre_delete.send(self.__class__, document=self)
 
+        # Delete FileFields separately 
+        FileField = _import_class('FileField')
+        for name, field in self._fields.iteritems():
+            if isinstance(field, FileField): 
+                getattr(self, name).delete()
+
         try:
-            self._qs.filter(**self._object_key).delete(write_concern=write_concern)
+            self._qs.filter(
+                **self._object_key).delete(write_concern=write_concern, _from_doc_delete=True)
         except pymongo.errors.OperationFailure, err:
             message = u'Could not delete document (%s)' % err.message
             raise OperationError(message)
-
         signals.post_delete.send(self.__class__, document=self)
 
-    def switch_db(self, db_alias):
+    def switch_db(self, db_alias, keep_created=True):
         """
         Temporarily switch the database for a document instance.
 
@@ -361,23 +504,27 @@ class Document(BaseDocument):
             user.switch_db('archive-db')
             user.save()
 
-        If you need to read from another database see
-        :class:`~mongoengine.context_managers.switch_db`
+        :param str db_alias: The database alias to use for saving the document
 
-        :param db_alias: The database alias to use for saving the document
+        :param bool keep_created: keep self._created value after switching db, else is reset to True
+
+
+        .. seealso::
+            Use :class:`~mongoengine.context_managers.switch_collection`
+            if you need to read from another collection
         """
         with switch_db(self.__class__, db_alias) as cls:
             collection = cls._get_collection()
-            db = cls._get_db
+            db = cls._get_db()
         self._get_collection = lambda: collection
         self._get_db = lambda: db
         self._collection = collection
-        self._created = True
+        self._created = True if not keep_created else self._created
         self.__objects = self._qs
         self.__objects._collection_obj = collection
         return self
 
-    def switch_collection(self, collection_name):
+    def switch_collection(self, collection_name, keep_created=True):
         """
         Temporarily switch the collection for a document instance.
 
@@ -387,17 +534,21 @@ class Document(BaseDocument):
             user.switch_collection('old-users')
             user.save()
 
-        If you need to read from another database see
-        :class:`~mongoengine.context_managers.switch_db`
-
-        :param collection_name: The database alias to use for saving the
+        :param str collection_name: The database alias to use for saving the
             document
+
+        :param bool keep_created: keep self._created value after switching collection, else is reset to True
+
+
+        .. seealso::
+            Use :class:`~mongoengine.context_managers.switch_db`
+            if you need to read from another database
         """
         with switch_collection(self.__class__, collection_name) as cls:
             collection = cls._get_collection()
         self._get_collection = lambda: collection
         self._collection = collection
-        self._created = True
+        self._created = True if not keep_created else self._created
         self.__objects = self._qs
         self.__objects._collection_obj = collection
         return self
@@ -408,32 +559,51 @@ class Document(BaseDocument):
 
         .. versionadded:: 0.5
         """
-        import dereference
-        self._data = dereference.DeReference()(self._data, max_depth)
+        DeReference = _import_class('DeReference')
+        DeReference()([self], max_depth + 1)
         return self
 
-    def reload(self, max_depth=1):
+    def reload(self, *fields, **kwargs):
         """Reloads all attributes from the database.
 
+        :param fields: (optional) args list of fields to reload
+        :param max_depth: (optional) depth of dereferencing to follow
+
         .. versionadded:: 0.1.2
         .. versionchanged:: 0.6  Now chainable
+        .. versionchanged:: 0.9  Can provide specific fields to reload
         """
-        id_field = self._meta['id_field']
-        obj = self._qs.filter(**{id_field: self[id_field]}
-                              ).limit(1).select_related(max_depth=max_depth)
+        max_depth = 1
+        if fields and isinstance(fields[0], int):
+            max_depth = fields[0]
+            fields = fields[1:]
+        elif "max_depth" in kwargs:
+            max_depth = kwargs["max_depth"]
+
+        if not self.pk:
+            raise self.DoesNotExist("Document does not exist")
+        obj = self._qs.read_preference(ReadPreference.PRIMARY).filter(
+            **self._object_key).only(*fields).limit(
+            1).select_related(max_depth=max_depth)
+
         if obj:
             obj = obj[0]
         else:
-            msg = "Reloaded document has been deleted"
-            raise OperationError(msg)
-        for field in self._fields:
-            setattr(self, field, self._reload(field, obj[field]))
-        if self._dynamic:
-            for name in self._dynamic_fields.keys():
-                setattr(self, name, self._reload(name, obj._data[name]))
+            raise self.DoesNotExist("Document does not exist")
+
+        for field in obj._data:
+            if not fields or field in fields:
+                try:
+                    setattr(self, field, self._reload(field, obj[field]))
+                except KeyError:
+                    # If field is removed from the database while the object
+                    # is in memory, a reload would cause a KeyError
+                    # i.e. obj.update(unset__field=1) followed by obj.reload()
+                    delattr(self, field)
+
         self._changed_fields = obj._changed_fields
         self._created = False
-        return obj
+        return self
 
     def _reload(self, key, value):
         """Used by :meth:`~mongoengine.Document.reload` to ensure the
@@ -442,10 +612,14 @@ class Document(BaseDocument):
         if isinstance(value, BaseDict):
             value = [(k, self._reload(k, v)) for k, v in value.items()]
             value = BaseDict(value, self, key)
+        elif isinstance(value, EmbeddedDocumentList):
+            value = [self._reload(key, v) for v in value]
+            value = EmbeddedDocumentList(value, self, key)
         elif isinstance(value, BaseList):
             value = [self._reload(key, v) for v in value]
             value = BaseList(value, self, key)
         elif isinstance(value, (EmbeddedDocument, DynamicEmbeddedDocument)):
+            value._instance = None
             value._changed_fields = []
         return value
 
@@ -463,17 +637,17 @@ class Document(BaseDocument):
         object.
         """
         classes = [get_document(class_name)
-                    for class_name in cls._subclasses
-                    if class_name != cls.__name__] + [cls]
+                   for class_name in cls._subclasses
+                   if class_name != cls.__name__] + [cls]
         documents = [get_document(class_name)
                      for class_name in document_cls._subclasses
                      if class_name != document_cls.__name__] + [document_cls]
 
-        for cls in classes:
+        for klass in classes:
             for document_cls in documents:
-                delete_rules = cls._meta.get('delete_rules') or {}
+                delete_rules = klass._meta.get('delete_rules') or {}
                 delete_rules[(document_cls, field_name)] = rule
-                cls._meta['delete_rules'] = delete_rules
+                klass._meta['delete_rules'] = delete_rules
 
     @classmethod
     def drop_collection(cls):
@@ -484,28 +658,58 @@ class Document(BaseDocument):
         db = cls._get_db()
         db.drop_collection(cls._get_collection_name())
 
+    @classmethod
+    def create_index(cls, keys, background=False, **kwargs):
+        """Creates the given indexes if required.
+
+        :param keys: a single index key or a list of index keys (to
+            construct a multi-field index); keys may be prefixed with a **+**
+            or a **-** to determine the index ordering
+        :param background: Allows index creation in the background
+        """
+        index_spec = cls._build_index_spec(keys)
+        index_spec = index_spec.copy()
+        fields = index_spec.pop('fields')
+        drop_dups = kwargs.get('drop_dups', False)
+        if IS_PYMONGO_3 and drop_dups:
+            msg = "drop_dups is deprecated and is removed when using PyMongo 3+."
+            warnings.warn(msg, DeprecationWarning)
+        elif not IS_PYMONGO_3:
+            index_spec['drop_dups'] = drop_dups
+        index_spec['background'] = background
+        index_spec.update(kwargs)
+
+        if IS_PYMONGO_3:
+            return cls._get_collection().create_index(fields, **index_spec)
+        else:
+            return cls._get_collection().ensure_index(fields, **index_spec)
+
     @classmethod
     def ensure_index(cls, key_or_list, drop_dups=False, background=False,
-        **kwargs):
-        """Ensure that the given indexes are in place.
+                     **kwargs):
+        """Ensure that the given indexes are in place. Deprecated in favour
+        of create_index.
 
         :param key_or_list: a single index key or a list of index keys (to
             construct a multi-field index); keys may be prefixed with a **+**
             or a **-** to determine the index ordering
+        :param background: Allows index creation in the background
+        :param drop_dups: Was removed/ignored with MongoDB >2.7.5. The value
+            will be removed if PyMongo3+ is used
         """
-        index_spec = cls._build_index_spec(key_or_list)
-        index_spec = index_spec.copy()
-        fields = index_spec.pop('fields')
-        index_spec['drop_dups'] = drop_dups
-        index_spec['background'] = background
-        index_spec.update(kwargs)
-
-        return cls._get_collection().ensure_index(fields, **index_spec)
+        if IS_PYMONGO_3 and drop_dups:
+            msg = "drop_dups is deprecated and is removed when using PyMongo 3+."
+            warnings.warn(msg, DeprecationWarning)
+        elif not IS_PYMONGO_3:
+            kwargs.update({'drop_dups': drop_dups})
+        return cls.create_index(key_or_list, background=background, **kwargs)
 
     @classmethod
     def ensure_indexes(cls):
         """Checks the document meta data and ensures all the indexes exist.
 
+        Global defaults can be set in the meta - see :doc:`guide/defining-documents`
+
         .. note:: You can disable automatic index creation by setting
                   `auto_create_index` to False in the documents meta data
         """
@@ -513,22 +717,21 @@ class Document(BaseDocument):
         drop_dups = cls._meta.get('index_drop_dups', False)
         index_opts = cls._meta.get('index_opts') or {}
         index_cls = cls._meta.get('index_cls', True)
+        if IS_PYMONGO_3 and drop_dups:
+            msg = "drop_dups is deprecated and is removed when using PyMongo 3+."
+            warnings.warn(msg, DeprecationWarning)
 
         collection = cls._get_collection()
+        # 746: when connection is via mongos, the read preference is not necessarily an indication that
+        # this code runs on a secondary
+        if not collection.is_mongos and collection.read_preference > 1:
+            return
 
         # determine if an index which we are creating includes
         # _cls as its first field; if so, we can avoid creating
         # an extra index on _cls, as mongodb will use the existing
         # index to service queries against _cls
         cls_indexed = False
-        def includes_cls(fields):
-            first_field = None
-            if len(fields):
-                if isinstance(fields[0], basestring):
-                    first_field = fields[0]
-                elif isinstance(fields[0], (list, tuple)) and len(fields[0]):
-                    first_field = fields[0][0]
-            return first_field == '_cls'
 
         # Ensure document-defined indexes are created
         if cls._meta['index_specs']:
@@ -539,15 +742,120 @@ class Document(BaseDocument):
                 cls_indexed = cls_indexed or includes_cls(fields)
                 opts = index_opts.copy()
                 opts.update(spec)
-                collection.ensure_index(fields, background=background,
-                                        drop_dups=drop_dups, **opts)
+
+                # we shouldn't pass 'cls' to the collection.ensureIndex options
+                # because of https://jira.mongodb.org/browse/SERVER-769
+                if 'cls' in opts:
+                    del opts['cls']
+
+                if IS_PYMONGO_3:
+                    collection.create_index(fields, background=background, **opts)
+                else:
+                    collection.ensure_index(fields, background=background,
+                                            drop_dups=drop_dups, **opts)
 
         # If _cls is being used (for polymorphism), it needs an index,
         # only if another index doesn't begin with _cls
         if (index_cls and not cls_indexed and
-           cls._meta.get('allow_inheritance', ALLOW_INHERITANCE) is True):
-            collection.ensure_index('_cls', background=background,
-                                    **index_opts)
+                cls._meta.get('allow_inheritance', ALLOW_INHERITANCE) is True):
+
+            # we shouldn't pass 'cls' to the collection.ensureIndex options
+            # because of https://jira.mongodb.org/browse/SERVER-769
+            if 'cls' in index_opts:
+                del index_opts['cls']
+
+            if IS_PYMONGO_3:
+                collection.create_index('_cls', background=background,
+                                        **index_opts)
+            else:
+                collection.ensure_index('_cls', background=background,
+                                        **index_opts)
+
+    @classmethod
+    def list_indexes(cls):
+        """ Lists all of the indexes that should be created for given
+        collection. It includes all the indexes from super- and sub-classes.
+        """
+
+        if cls._meta.get('abstract'):
+            return []
+
+        # get all the base classes, subclasses and siblings
+        classes = []
+
+        def get_classes(cls):
+
+            if (cls not in classes and
+                    isinstance(cls, TopLevelDocumentMetaclass)):
+                classes.append(cls)
+
+            for base_cls in cls.__bases__:
+                if (isinstance(base_cls, TopLevelDocumentMetaclass) and
+                        base_cls != Document and
+                        not base_cls._meta.get('abstract') and
+                        base_cls._get_collection().full_name == cls._get_collection().full_name and
+                        base_cls not in classes):
+                    classes.append(base_cls)
+                    get_classes(base_cls)
+            for subclass in cls.__subclasses__():
+                if (isinstance(base_cls, TopLevelDocumentMetaclass) and
+                        subclass._get_collection().full_name == cls._get_collection().full_name and
+                        subclass not in classes):
+                    classes.append(subclass)
+                    get_classes(subclass)
+
+        get_classes(cls)
+
+        # get the indexes spec for all of the gathered classes
+        def get_indexes_spec(cls):
+            indexes = []
+
+            if cls._meta['index_specs']:
+                index_spec = cls._meta['index_specs']
+                for spec in index_spec:
+                    spec = spec.copy()
+                    fields = spec.pop('fields')
+                    indexes.append(fields)
+            return indexes
+
+        indexes = []
+        for klass in classes:
+            for index in get_indexes_spec(klass):
+                if index not in indexes:
+                    indexes.append(index)
+
+        # finish up by appending { '_id': 1 } and { '_cls': 1 }, if needed
+        if [(u'_id', 1)] not in indexes:
+            indexes.append([(u'_id', 1)])
+        if (cls._meta.get('index_cls', True) and
+                cls._meta.get('allow_inheritance', ALLOW_INHERITANCE) is True):
+            indexes.append([(u'_cls', 1)])
+
+        return indexes
+
+    @classmethod
+    def compare_indexes(cls):
+        """ Compares the indexes defined in MongoEngine with the ones existing
+        in the database. Returns any missing/extra indexes.
+        """
+
+        required = cls.list_indexes()
+        existing = [info['key']
+                    for info in cls._get_collection().index_information().values()]
+        missing = [index for index in required if index not in existing]
+        extra = [index for index in existing if index not in required]
+
+        # if { _cls: 1 } is missing, make sure it's *really* necessary
+        if [(u'_cls', 1)] in missing:
+            cls_obsolete = False
+            for index in existing:
+                if includes_cls(index) and index not in extra:
+                    cls_obsolete = True
+                    break
+            if cls_obsolete:
+                missing.remove([(u'_cls', 1)])
+
+        return {'missing': missing, 'extra': extra}
 
 
 class DynamicDocument(Document):
@@ -566,7 +874,7 @@ class DynamicDocument(Document):
 
     # The __metaclass__ attribute is removed by 2to3 when running with Python3
     # my_metaclass is defined so that metaclass can be queried in Python 2 & 3
-    my_metaclass  = TopLevelDocumentMetaclass
+    my_metaclass = TopLevelDocumentMetaclass
     __metaclass__ = TopLevelDocumentMetaclass
 
     _dynamic = True
@@ -589,7 +897,7 @@ class DynamicEmbeddedDocument(EmbeddedDocument):
 
     # The __metaclass__ attribute is removed by 2to3 when running with Python3
     # my_metaclass is defined so that metaclass can be queried in Python 2 & 3
-    my_metaclass  = DocumentMetaclass
+    my_metaclass = DocumentMetaclass
     __metaclass__ = DocumentMetaclass
 
     _dynamic = True
@@ -638,7 +946,7 @@ class MapReduceDocument(object):
             try:
                 self.key = id_field_type(self.key)
             except:
-                raise Exception("Could not cast key as %s" % \
+                raise Exception("Could not cast key as %s" %
                                 id_field_type.__name__)
 
         if not hasattr(self, "_key_object"):

mongoengine/errors.py

@@ -5,7 +5,8 @@ from mongoengine.python_support import txt_type
 
 __all__ = ('NotRegistered', 'InvalidDocumentError', 'LookUpError',
            'DoesNotExist', 'MultipleObjectsReturned', 'InvalidQueryError',
-           'OperationError', 'NotUniqueError', 'ValidationError')
+           'OperationError', 'NotUniqueError', 'FieldDoesNotExist',
+           'ValidationError')
 
 
 class NotRegistered(Exception):
@@ -40,6 +41,21 @@ class NotUniqueError(OperationError):
     pass
 
 
+class SaveConditionError(OperationError):
+    pass
+
+
+class FieldDoesNotExist(Exception):
+    """Raised when trying to set a field
+    not declared in a :class:`~mongoengine.Document`
+    or an :class:`~mongoengine.EmbeddedDocument`.
+
+    To avoid this behavior on data loading,
+    you should the :attr:`strict` to ``False``
+    in the :attr:`meta` dictionnary.
+    """
+
+
 class ValidationError(AssertionError):
     """Validation exception.
 
@@ -103,6 +119,7 @@ class ValidationError(AssertionError):
             else:
                 return unicode(source)
             return errors_dict
+
         if not self.errors:
             return {}
         return build_dict(self.errors)
@@ -113,9 +130,9 @@ class ValidationError(AssertionError):
         def generate_key(value, prefix=''):
             if isinstance(value, list):
                 value = ' '.join([generate_key(k) for k in value])
-            if isinstance(value, dict):
+            elif isinstance(value, dict):
                 value = ' '.join(
-                        [generate_key(v, k) for k, v in value.iteritems()])
+                    [generate_key(v, k) for k, v in value.iteritems()])
 
             results = "%s.%s" % (prefix, value) if prefix else value
             return results

mongoengine/python_support.py

@@ -1,20 +1,26 @@
 """Helper functions and types to aid with Python 2.5 - 3 support."""
 
 import sys
+import pymongo
+
+
+if pymongo.version_tuple[0] < 3:
+    IS_PYMONGO_3 = False
+else:
+    IS_PYMONGO_3 = True
 
 PY3 = sys.version_info[0] == 3
-PY25 = sys.version_info[:2] == (2, 5)
-UNICODE_KWARGS = int(''.join([str(x) for x in sys.version_info[:3]])) > 264
 
 if PY3:
     import codecs
     from io import BytesIO as StringIO
+
     # return s converted to binary.  b('test') should be equivalent to b'test'
     def b(s):
         return codecs.latin_1_encode(s)[0]
 
     bin_type = bytes
-    txt_type   = str
+    txt_type = str
 else:
     try:
         from cStringIO import StringIO
@@ -29,33 +35,3 @@ else:
     txt_type = unicode
 
 str_types = (bin_type, txt_type)
-
-if PY25:
-    def product(*args, **kwds):
-        pools = map(tuple, args) * kwds.get('repeat', 1)
-        result = [[]]
-        for pool in pools:
-            result = [x + [y] for x in result for y in pool]
-        for prod in result:
-            yield tuple(prod)
-    reduce = reduce
-else:
-    from itertools import product
-    from functools import reduce
-
-
-# For use with Python 2.5
-# converts all keys from unicode to str for d and all nested dictionaries
-def to_str_keys_recursive(d):
-    if isinstance(d, list):
-        for val in d:
-            if isinstance(val, (dict, list)):
-                to_str_keys_recursive(val)
-    elif isinstance(d, dict):
-        for key, val in d.items():
-            if isinstance(val, (dict, list)):
-                to_str_keys_recursive(val)
-            if isinstance(key, unicode):
-                d[str(key)] = d.pop(key)
-    else:
-        raise ValueError("non list/dict parameter not allowed")

mongoengine/queryset/field_list.py

@@ -1,4 +1,3 @@
-
 __all__ = ('QueryFieldList',)
 
 
@@ -55,7 +54,8 @@ class QueryFieldList(object):
 
         if self.always_include:
             if self.value is self.ONLY and self.fields:
-                self.fields = self.fields.union(self.always_include)
+                if sorted(self.slice.keys()) != sorted(self.fields):
+                    self.fields = self.fields.union(self.always_include)
             else:
                 self.fields -= self.always_include
 

mongoengine/queryset/transform.py

@@ -3,51 +3,53 @@ from collections import defaultdict
 import pymongo
 from bson import SON
 
+from mongoengine.base.fields import UPDATE_OPERATORS
+from mongoengine.connection import get_connection
 from mongoengine.common import _import_class
-from mongoengine.errors import InvalidQueryError, LookUpError
+from mongoengine.errors import InvalidQueryError
+from mongoengine.python_support import IS_PYMONGO_3
 
 __all__ = ('query', 'update')
 
-
 COMPARISON_OPERATORS = ('ne', 'gt', 'gte', 'lt', 'lte', 'in', 'nin', 'mod',
-                        'all', 'size', 'exists', 'not')
-GEO_OPERATORS        = ('within_distance', 'within_spherical_distance',
-                        'within_box', 'within_polygon', 'near', 'near_sphere',
-                        'max_distance', 'geo_within', 'geo_within_box',
-                        'geo_within_polygon', 'geo_within_center',
-                        'geo_within_sphere', 'geo_intersects')
-STRING_OPERATORS     = ('contains', 'icontains', 'startswith',
-                        'istartswith', 'endswith', 'iendswith',
-                        'exact', 'iexact')
-CUSTOM_OPERATORS     = ('match',)
-MATCH_OPERATORS      = (COMPARISON_OPERATORS + GEO_OPERATORS +
-                        STRING_OPERATORS + CUSTOM_OPERATORS)
-
-UPDATE_OPERATORS     = ('set', 'unset', 'inc', 'dec', 'pop', 'push',
-                        'push_all', 'pull', 'pull_all', 'add_to_set',
-                        'set_on_insert')
+                        'all', 'size', 'exists', 'not', 'elemMatch', 'type')
+GEO_OPERATORS = ('within_distance', 'within_spherical_distance',
+                 'within_box', 'within_polygon', 'near', 'near_sphere',
+                 'max_distance', 'min_distance', 'geo_within', 'geo_within_box',
+                 'geo_within_polygon', 'geo_within_center',
+                 'geo_within_sphere', 'geo_intersects')
+STRING_OPERATORS = ('contains', 'icontains', 'startswith',
+                    'istartswith', 'endswith', 'iendswith',
+                    'exact', 'iexact')
+CUSTOM_OPERATORS = ('match',)
+MATCH_OPERATORS = (COMPARISON_OPERATORS + GEO_OPERATORS +
+                   STRING_OPERATORS + CUSTOM_OPERATORS)
 
 
-def query(_doc_cls=None, _field_operation=False, **query):
+def query(_doc_cls=None, **kwargs):
     """Transform a query from Django-style format to Mongo format.
     """
     mongo_query = {}
     merge_query = defaultdict(list)
-    for key, value in sorted(query.items()):
+    for key, value in sorted(kwargs.items()):
         if key == "__raw__":
             mongo_query.update(value)
             continue
 
-        parts = key.split('__')
+        parts = key.rsplit('__')
         indices = [(i, p) for i, p in enumerate(parts) if p.isdigit()]
         parts = [part for part in parts if not part.isdigit()]
         # Check for an operator and transform to mongo-style if there is
         op = None
-        if parts[-1] in MATCH_OPERATORS:
+        if len(parts) > 1 and parts[-1] in MATCH_OPERATORS:
             op = parts.pop()
 
+        # Allw to escape operator-like field name by __
+        if len(parts) > 1 and parts[-1] == "":
+            parts.pop()
+
         negate = False
-        if parts[-1] == 'not':
+        if len(parts) > 1 and parts[-1] == 'not':
             parts.pop()
             negate = True
 
@@ -59,14 +61,20 @@ def query(_doc_cls=None, _field_operation=False, **query):
                 raise InvalidQueryError(e)
             parts = []
 
+            CachedReferenceField = _import_class('CachedReferenceField')
+
             cleaned_fields = []
             for field in fields:
                 append_field = True
                 if isinstance(field, basestring):
                     parts.append(field)
                     append_field = False
+                # is last and CachedReferenceField
+                elif isinstance(field, CachedReferenceField) and fields[-1] == field:
+                    parts.append('%s._id' % field.db_field)
                 else:
                     parts.append(field.db_field)
+
                 if append_field:
                     cleaned_fields.append(field)
 
@@ -78,13 +86,17 @@ def query(_doc_cls=None, _field_operation=False, **query):
             if op in singular_ops:
                 if isinstance(field, basestring):
                     if (op in STRING_OPERATORS and
-                       isinstance(value, basestring)):
+                            isinstance(value, basestring)):
                         StringField = _import_class('StringField')
                         value = StringField.prepare_query_value(op, value)
                     else:
                         value = field
                 else:
                     value = field.prepare_query_value(op, value)
+
+                    if isinstance(field, CachedReferenceField) and value:
+                        value = value['_id']
+
             elif op in ('in', 'nin', 'all', 'near') and not isinstance(value, dict):
                 # 'in', 'nin' and 'all' require a list of values
                 value = [field.prepare_query_value(op, v) for v in value]
@@ -93,12 +105,18 @@ def query(_doc_cls=None, _field_operation=False, **query):
         if op:
             if op in GEO_OPERATORS:
                 value = _geo_operator(field, op, value)
-            elif op in CUSTOM_OPERATORS:
-                if op == 'match':
-                    value = {"$elemMatch": value}
+            elif op in ('match', 'elemMatch'):
+                ListField = _import_class('ListField')
+                EmbeddedDocumentField = _import_class('EmbeddedDocumentField')
+                if (isinstance(value, dict) and isinstance(field, ListField) and
+                    isinstance(field.field, EmbeddedDocumentField)):
+                    value = query(field.field.document_type, **value)
                 else:
-                    NotImplementedError("Custom method '%s' has not "
-                                        "been implemented" % op)
+                    value = field.prepare_query_value(op, value)
+                value = {"$elemMatch": value}
+            elif op in CUSTOM_OPERATORS:
+                NotImplementedError("Custom method '%s' has not "
+                                    "been implemented" % op)
             elif op not in STRING_OPERATORS:
                 value = {'$' + op: value}
 
@@ -113,15 +131,34 @@ def query(_doc_cls=None, _field_operation=False, **query):
         elif key in mongo_query:
             if key in mongo_query and isinstance(mongo_query[key], dict):
                 mongo_query[key].update(value)
-                # $maxDistance needs to come last - convert to SON
-                if '$maxDistance' in mongo_query[key]:
-                    value_dict = mongo_query[key]
+                # $max/minDistance needs to come last - convert to SON
+                value_dict = mongo_query[key]
+                if ('$maxDistance' in value_dict or '$minDistance' in value_dict) and \
+                        ('$near' in value_dict or '$nearSphere' in value_dict):
                     value_son = SON()
                     for k, v in value_dict.iteritems():
-                        if k == '$maxDistance':
+                        if k == '$maxDistance' or k == '$minDistance':
                             continue
                         value_son[k] = v
-                    value_son['$maxDistance'] = value_dict['$maxDistance']
+                    # Required for MongoDB >= 2.6, may fail when combining
+                    # PyMongo 3+ and MongoDB < 2.6
+                    near_embedded = False
+                    for near_op in ('$near', '$nearSphere'):
+                        if isinstance(value_dict.get(near_op), dict) and (
+                                IS_PYMONGO_3 or get_connection().max_wire_version > 1):
+                            value_son[near_op] = SON(value_son[near_op])
+                            if '$maxDistance' in value_dict:
+                                value_son[near_op][
+                                    '$maxDistance'] = value_dict['$maxDistance']
+                            if '$minDistance' in value_dict:
+                                value_son[near_op][
+                                    '$minDistance'] = value_dict['$minDistance']
+                            near_embedded = True
+                    if not near_embedded:
+                        if '$maxDistance' in value_dict:
+                            value_son['$maxDistance'] = value_dict['$maxDistance']
+                        if '$minDistance' in value_dict:
+                            value_son['$minDistance'] = value_dict['$minDistance']
                     mongo_query[key] = value_son
             else:
                 # Store for manually merging later
@@ -134,7 +171,7 @@ def query(_doc_cls=None, _field_operation=False, **query):
         if isinstance(v, list):
             value = [{k: val} for val in v]
             if '$and' in mongo_query.keys():
-                mongo_query['$and'].append(value)
+                mongo_query['$and'].extend(value)
             else:
                 mongo_query['$and'] = value
 
@@ -150,6 +187,9 @@ def update(_doc_cls=None, **update):
             mongo_update.update(value)
             continue
         parts = key.split('__')
+        # if there is no operator, default to "set"
+        if len(parts) < 3 and parts[0] not in UPDATE_OPERATORS:
+            parts.insert(0, 'set')
         # Check for an operator and transform to mongo-style if there is
         op = None
         if parts[0] in UPDATE_OPERATORS:
@@ -181,6 +221,7 @@ def update(_doc_cls=None, **update):
             parts = []
 
             cleaned_fields = []
+            appended_sub_field = False
             for field in fields:
                 append_field = True
                 if isinstance(field, basestring):
@@ -192,21 +233,34 @@ def update(_doc_cls=None, **update):
                 else:
                     parts.append(field.db_field)
                 if append_field:
+                    appended_sub_field = False
                     cleaned_fields.append(field)
+                    if hasattr(field, 'field'):
+                        cleaned_fields.append(field.field)
+                        appended_sub_field = True
 
             # Convert value to proper value
-            field = cleaned_fields[-1]
+            if appended_sub_field:
+                field = cleaned_fields[-2]
+            else:
+                field = cleaned_fields[-1]
+
+            GeoJsonBaseField = _import_class("GeoJsonBaseField")
+            if isinstance(field, GeoJsonBaseField):
+                value = field.to_mongo(value)
 
             if op in (None, 'set', 'push', 'pull'):
                 if field.required or value is not None:
                     value = field.prepare_query_value(op, value)
             elif op in ('pushAll', 'pullAll'):
                 value = [field.prepare_query_value(op, v) for v in value]
-            elif op == 'addToSet':
+            elif op in ('addToSet', 'setOnInsert'):
                 if isinstance(value, (list, tuple, set)):
                     value = [field.prepare_query_value(op, v) for v in value]
                 elif field.required or value is not None:
                     value = field.prepare_query_value(op, value)
+            elif op == "unset":
+                value = 1
 
         if match:
             match = '$' + match
@@ -220,11 +274,25 @@ def update(_doc_cls=None, **update):
 
         if 'pull' in op and '.' in key:
             # Dot operators don't work on pull operations
-            # it uses nested dict syntax
+            # unless they point to a list field
+            # Otherwise it uses nested dict syntax
             if op == 'pullAll':
                 raise InvalidQueryError("pullAll operations only support "
                                         "a single field depth")
 
+            # Look for the last list field and use dot notation until there
+            field_classes = [c.__class__ for c in cleaned_fields]
+            field_classes.reverse()
+            ListField = _import_class('ListField')
+            if ListField in field_classes:
+                # Join all fields via dot notation to the last ListField
+                # Then process as normal
+                last_listField = len(
+                    cleaned_fields) - field_classes.index(ListField)
+                key = ".".join(parts[:last_listField])
+                parts = parts[last_listField:]
+                parts.insert(0, key)
+
             parts.reverse()
             for key in parts:
                 value = {key: value}
@@ -244,7 +312,11 @@ def update(_doc_cls=None, **update):
 
 def _geo_operator(field, op, value):
     """Helper to return the query for a given geo query"""
-    if field._geo_index == pymongo.GEO2D:
+    if op == "max_distance":
+        value = {'$maxDistance': value}
+    elif op == "min_distance":
+        value = {'$minDistance': value}
+    elif field._geo_index == pymongo.GEO2D:
         if op == "within_distance":
             value = {'$within': {'$center': value}}
         elif op == "within_spherical_distance":
@@ -257,8 +329,6 @@ def _geo_operator(field, op, value):
             value = {'$nearSphere': value}
         elif op == 'within_box':
             value = {'$within': {'$box': value}}
-        elif op == "max_distance":
-            value = {'$maxDistance': value}
         else:
             raise NotImplementedError("Geo method '%s' has not "
                                       "been implemented for a GeoPointField" % op)
@@ -277,8 +347,6 @@ def _geo_operator(field, op, value):
             value = {"$geoIntersects": _infer_geometry(value)}
         elif op == "near":
             value = {'$near': _infer_geometry(value)}
-        elif op == "max_distance":
-            value = {'$maxDistance': value}
         else:
             raise NotImplementedError("Geo method '%s' has not "
                                       "been implemented for a %s " % (op, field._name))
@@ -295,6 +363,7 @@ def _infer_geometry(value):
         raise InvalidQueryError("Invalid $geometry dictionary should have "
                                 "type and coordinates keys")
     elif isinstance(value, (list, set)):
+        # TODO: shouldn't we test value[0][0][0][0] to see if it is MultiPolygon?
         try:
             value[0][0][0]
             return {"$geometry": {"type": "Polygon", "coordinates": value}}

mongoengine/queryset/visitor.py

@@ -1,8 +1,6 @@
 import copy
 
 from mongoengine.errors import InvalidQueryError
-from mongoengine.python_support import product, reduce
-
 from mongoengine.queryset import transform
 
 __all__ = ('Q',)
@@ -23,8 +21,12 @@ class QNodeVisitor(object):
         return query
 
 
+class DuplicateQueryConditionsError(InvalidQueryError):
+    pass
+
+
 class SimplificationVisitor(QNodeVisitor):
-    """Simplifies query trees by combinging unnecessary 'and' connection nodes
+    """Simplifies query trees by combining unnecessary 'and' connection nodes
     into a single Q-object.
     """
 
@@ -33,7 +35,11 @@ class SimplificationVisitor(QNodeVisitor):
             # The simplification only applies to 'simple' queries
             if all(isinstance(node, Q) for node in combination.children):
                 queries = [n.query for n in combination.children]
-                return Q(**self._query_conjunction(queries))
+                try:
+                    return Q(**self._query_conjunction(queries))
+                except DuplicateQueryConditionsError:
+                    # Cannot be simplified
+                    pass
         return combination
 
     def _query_conjunction(self, queries):
@@ -47,8 +53,7 @@ class SimplificationVisitor(QNodeVisitor):
             # to a single field
             intersection = ops.intersection(query_ops)
             if intersection:
-                msg = 'Duplicate query conditions: '
-                raise InvalidQueryError(msg + ', '.join(intersection))
+                raise DuplicateQueryConditionsError()
 
             query_ops.update(ops)
             combined_query.update(copy.deepcopy(query))
@@ -122,8 +127,7 @@ class QCombination(QNode):
             # If the child is a combination of the same type, we can merge its
             # children directly into this combinations children
             if isinstance(node, QCombination) and node.operation == operation:
-                # self.children += node.children
-                self.children.append(node)
+                self.children += node.children
             else:
                 self.children.append(node)
 

mongoengine/signals.py

@@ -1,11 +1,12 @@
 # -*- coding: utf-8 -*-
 
-__all__ = ['pre_init', 'post_init', 'pre_save', 'post_save',
-           'pre_delete', 'post_delete']
+__all__ = ['pre_init', 'post_init', 'pre_save', 'pre_save_post_validation',
+           'post_save', 'pre_delete', 'post_delete']
 
 signals_available = False
 try:
     from blinker import Namespace
+
     signals_available = True
 except ImportError:
     class Namespace(object):
@@ -27,6 +28,7 @@ except ImportError:
             raise RuntimeError('signalling support is unavailable '
                                'because the blinker library is '
                                'not installed.')
+
         send = lambda *a, **kw: None
         connect = disconnect = has_receivers_for = receivers_for = \
             temporarily_connected_to = _fail
@@ -39,6 +41,7 @@ _signals = Namespace()
 pre_init = _signals.signal('pre_init')
 post_init = _signals.signal('post_init')
 pre_save = _signals.signal('pre_save')
+pre_save_post_validation = _signals.signal('pre_save_post_validation')
 post_save = _signals.signal('post_save')
 pre_delete = _signals.signal('pre_delete')
 post_delete = _signals.signal('post_delete')

python-mongoengine.spec

@@ -5,7 +5,7 @@
 %define srcname mongoengine
 
 Name:           python-%{srcname}
-Version:        0.8.0
+Version:        0.8.7
 Release:        1%{?dist}
 Summary:        A Python Document-Object Mapper for working with MongoDB
 

requirements.txt

@@ -1 +1,2 @@
-pymongo
+pymongo>=2.7.1
+nose

setup.cfg

@@ -1,11 +1,8 @@
 [nosetests]
-verbosity = 3
+rednose = 1
+verbosity = 2
 detailed-errors = 1
-#with-coverage = 1
-#cover-erase = 1
-#cover-html = 1
-#cover-html-dir = ../htmlcov
-#cover-package = mongoengine
-py3where = build
-where = tests
-#tests =  document/__init__.py
+cover-erase = 1
+cover-branches = 1
+cover-package = mongoengine
+tests = tests

setup.py

@@ -29,7 +29,6 @@ init = os.path.join(os.path.dirname(__file__), 'mongoengine', '__init__.py')
 version_line = list(filter(lambda l: l.startswith('VERSION'), open(init)))[0]
 
 VERSION = get_version(eval(version_line.split('=')[-1]))
-print(VERSION)
 
 CLASSIFIERS = [
     'Development Status :: 4 - Beta',
@@ -41,24 +40,28 @@ CLASSIFIERS = [
     "Programming Language :: Python :: 2.6",
     "Programming Language :: Python :: 2.7",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.1",
     "Programming Language :: Python :: 3.2",
+    "Programming Language :: Python :: 3.3",
+    "Programming Language :: Python :: 3.4",
     "Programming Language :: Python :: Implementation :: CPython",
+    "Programming Language :: Python :: Implementation :: PyPy",
     'Topic :: Database',
     'Topic :: Software Development :: Libraries :: Python Modules',
 ]
 
-extra_opts = {}
+extra_opts = {"packages": find_packages(exclude=["tests", "tests.*"])}
 if sys.version_info[0] == 3:
     extra_opts['use_2to3'] = True
-    extra_opts['tests_require'] = ['nose', 'coverage', 'blinker', 'jinja2']
-    extra_opts['packages'] = find_packages(exclude=('tests',))
+    extra_opts['tests_require'] = ['nose', 'rednose', 'coverage==3.7.1', 'blinker', 'Pillow>=2.0.0']
     if "test" in sys.argv or "nosetests" in sys.argv:
-        extra_opts['packages'].append("tests")
+        extra_opts['packages'] = find_packages()
         extra_opts['package_data'] = {"tests": ["fields/mongoengine.png", "fields/mongodb_leaf.png"]}
 else:
-    extra_opts['tests_require'] = ['nose', 'coverage', 'blinker', 'django>=1.4.2', 'PIL', 'jinja2']
-    extra_opts['packages'] = find_packages(exclude=('tests',))
+    # coverage 4 does not support Python 3.2 anymore
+    extra_opts['tests_require'] = ['nose', 'rednose', 'coverage==3.7.1', 'blinker', 'Pillow>=2.0.0', 'python-dateutil']
+
+    if sys.version_info[0] == 2 and sys.version_info[1] == 6:
+        extra_opts['tests_require'].append('unittest2')
 
 setup(name='mongoengine',
       version=VERSION,
@@ -74,7 +77,7 @@ setup(name='mongoengine',
       long_description=LONG_DESCRIPTION,
       platforms=['any'],
       classifiers=CLASSIFIERS,
-      install_requires=['pymongo>=2.5'],
+      install_requires=['pymongo>=2.7.1'],
       test_suite='nose.collector',
       **extra_opts
 )

tests/document/class_methods.py

@@ -36,9 +36,9 @@ class ClassMethodsTest(unittest.TestCase):
     def test_definition(self):
         """Ensure that document may be defined using fields.
         """
-        self.assertEqual(['age', 'id', 'name'],
+        self.assertEqual(['_cls', 'age', 'id', 'name'],
                          sorted(self.Person._fields.keys()))
-        self.assertEqual(["IntField", "ObjectIdField", "StringField"],
+        self.assertEqual(["IntField", "ObjectIdField", "StringField", "StringField"],
                         sorted([x.__class__.__name__ for x in
                                 self.Person._fields.values()]))
 
@@ -85,6 +85,153 @@ class ClassMethodsTest(unittest.TestCase):
         self.assertEqual(self.Person._meta['delete_rules'],
                          {(Job, 'employee'): NULLIFY})
 
+    def test_compare_indexes(self):
+        """ Ensure that the indexes are properly created and that
+        compare_indexes identifies the missing/extra indexes
+        """
+
+        class BlogPost(Document):
+            author = StringField()
+            title = StringField()
+            description = StringField()
+            tags = StringField()
+
+            meta = {
+                'indexes': [('author', 'title')]
+            }
+
+        BlogPost.drop_collection()
+
+        BlogPost.ensure_indexes()
+        self.assertEqual(BlogPost.compare_indexes(), { 'missing': [], 'extra': [] })
+
+        BlogPost.ensure_index(['author', 'description'])
+        self.assertEqual(BlogPost.compare_indexes(), { 'missing': [], 'extra': [[('author', 1), ('description', 1)]] })
+
+        BlogPost._get_collection().drop_index('author_1_description_1')
+        self.assertEqual(BlogPost.compare_indexes(), { 'missing': [], 'extra': [] })
+
+        BlogPost._get_collection().drop_index('author_1_title_1')
+        self.assertEqual(BlogPost.compare_indexes(), { 'missing': [[('author', 1), ('title', 1)]], 'extra': [] })
+
+    def test_compare_indexes_inheritance(self):
+        """ Ensure that the indexes are properly created and that
+        compare_indexes identifies the missing/extra indexes for subclassed
+        documents (_cls included)
+        """
+
+        class BlogPost(Document):
+            author = StringField()
+            title = StringField()
+            description = StringField()
+
+            meta = {
+                'allow_inheritance': True
+            }
+
+        class BlogPostWithTags(BlogPost):
+            tags = StringField()
+            tag_list = ListField(StringField())
+
+            meta = {
+                'indexes': [('author', 'tags')]
+            }
+
+        BlogPost.drop_collection()
+
+        BlogPost.ensure_indexes()
+        BlogPostWithTags.ensure_indexes()
+        self.assertEqual(BlogPost.compare_indexes(), { 'missing': [], 'extra': [] })
+
+        BlogPostWithTags.ensure_index(['author', 'tag_list'])
+        self.assertEqual(BlogPost.compare_indexes(), { 'missing': [], 'extra': [[('_cls', 1), ('author', 1), ('tag_list', 1)]] })
+
+        BlogPostWithTags._get_collection().drop_index('_cls_1_author_1_tag_list_1')
+        self.assertEqual(BlogPost.compare_indexes(), { 'missing': [], 'extra': [] })
+
+        BlogPostWithTags._get_collection().drop_index('_cls_1_author_1_tags_1')
+        self.assertEqual(BlogPost.compare_indexes(), { 'missing': [[('_cls', 1), ('author', 1), ('tags', 1)]], 'extra': [] })
+
+    def test_compare_indexes_multiple_subclasses(self):
+        """ Ensure that compare_indexes behaves correctly if called from a
+        class, which base class has multiple subclasses
+        """
+
+        class BlogPost(Document):
+            author = StringField()
+            title = StringField()
+            description = StringField()
+
+            meta = {
+                'allow_inheritance': True
+            }
+
+        class BlogPostWithTags(BlogPost):
+            tags = StringField()
+            tag_list = ListField(StringField())
+
+            meta = {
+                'indexes': [('author', 'tags')]
+            }
+
+        class BlogPostWithCustomField(BlogPost):
+            custom = DictField()
+
+            meta = {
+                'indexes': [('author', 'custom')]
+            }
+
+        BlogPost.ensure_indexes()
+        BlogPostWithTags.ensure_indexes()
+        BlogPostWithCustomField.ensure_indexes()
+
+        self.assertEqual(BlogPost.compare_indexes(), { 'missing': [], 'extra': [] })
+        self.assertEqual(BlogPostWithTags.compare_indexes(), { 'missing': [], 'extra': [] })
+        self.assertEqual(BlogPostWithCustomField.compare_indexes(), { 'missing': [], 'extra': [] })
+
+    def test_list_indexes_inheritance(self):
+        """ ensure that all of the indexes are listed regardless of the super-
+        or sub-class that we call it from
+        """
+
+        class BlogPost(Document):
+            author = StringField()
+            title = StringField()
+            description = StringField()
+
+            meta = {
+                'allow_inheritance': True
+            }
+
+        class BlogPostWithTags(BlogPost):
+            tags = StringField()
+
+            meta = {
+                'indexes': [('author', 'tags')]
+            }
+
+        class BlogPostWithTagsAndExtraText(BlogPostWithTags):
+            extra_text = StringField()
+
+            meta = {
+                'indexes': [('author', 'tags', 'extra_text')]
+            }
+
+        BlogPost.drop_collection()
+
+        BlogPost.ensure_indexes()
+        BlogPostWithTags.ensure_indexes()
+        BlogPostWithTagsAndExtraText.ensure_indexes()
+
+        self.assertEqual(BlogPost.list_indexes(),
+                         BlogPostWithTags.list_indexes())
+        self.assertEqual(BlogPost.list_indexes(),
+                         BlogPostWithTagsAndExtraText.list_indexes())
+        self.assertEqual(BlogPost.list_indexes(),
+                         [[('_cls', 1), ('author', 1), ('tags', 1)],
+                         [('_cls', 1), ('author', 1), ('tags', 1), ('extra_text', 1)],
+                         [(u'_id', 1)], [('_cls', 1)]])
+
     def test_register_delete_rule_inherited(self):
 
         class Vaccine(Document):

tests/document/delta.py

@@ -3,6 +3,7 @@ import sys
 sys.path[0:0] = [""]
 import unittest
 
+from bson import SON
 from mongoengine import *
 from mongoengine.connection import get_db
 
@@ -92,6 +93,7 @@ class DeltaTest(unittest.TestCase):
     def delta_recursive(self, DocClass, EmbeddedClass):
 
         class Embedded(EmbeddedClass):
+            id = StringField()
             string_field = StringField()
             int_field = IntField()
             dict_field = DictField()
@@ -113,6 +115,7 @@ class DeltaTest(unittest.TestCase):
         self.assertEqual(doc._delta(), ({}, {}))
 
         embedded_1 = Embedded()
+        embedded_1.id = "010101"
         embedded_1.string_field = 'hello'
         embedded_1.int_field = 1
         embedded_1.dict_field = {'hello': 'world'}
@@ -122,6 +125,7 @@ class DeltaTest(unittest.TestCase):
         self.assertEqual(doc._get_changed_fields(), ['embedded_field'])
 
         embedded_delta = {
+            'id': "010101",
             'string_field': 'hello',
             'int_field': 1,
             'dict_field': {'hello': 'world'},
@@ -206,22 +210,21 @@ class DeltaTest(unittest.TestCase):
         doc.embedded_field.list_field[2].string_field = 'hello world'
         doc.embedded_field.list_field[2] = doc.embedded_field.list_field[2]
         self.assertEqual(doc._get_changed_fields(),
-                         ['embedded_field.list_field'])
-        self.assertEqual(doc.embedded_field._delta(), ({
-            'list_field': ['1', 2, {
-            '_cls': 'Embedded',
-            'string_field': 'hello world',
-            'int_field': 1,
-            'list_field': ['1', 2, {'hello': 'world'}],
-            'dict_field': {'hello': 'world'}}]}, {}))
-        self.assertEqual(doc._delta(), ({
-            'embedded_field.list_field': ['1', 2, {
+                         ['embedded_field.list_field.2'])
+        self.assertEqual(doc.embedded_field._delta(), ({'list_field.2': {
                 '_cls': 'Embedded',
                 'string_field': 'hello world',
                 'int_field': 1,
                 'list_field': ['1', 2, {'hello': 'world'}],
                 'dict_field': {'hello': 'world'}}
-            ]}, {}))
+            }, {}))
+        self.assertEqual(doc._delta(), ({'embedded_field.list_field.2': {
+                '_cls': 'Embedded',
+                'string_field': 'hello world',
+                'int_field': 1,
+                'list_field': ['1', 2, {'hello': 'world'}],
+                'dict_field': {'hello': 'world'}}
+            }, {}))
         doc.save()
         doc = doc.reload(10)
         self.assertEqual(doc.embedded_field.list_field[2].string_field,
@@ -250,13 +253,13 @@ class DeltaTest(unittest.TestCase):
         self.assertEqual(doc.embedded_field.list_field[2].list_field,
                          [1, 2, {'hello': 'world'}])
 
-        del(doc.embedded_field.list_field[2].list_field[2]['hello'])
+        del doc.embedded_field.list_field[2].list_field[2]['hello']
         self.assertEqual(doc._delta(),
-                         ({'embedded_field.list_field.2.list_field': [1, 2, {}]}, {}))
+                         ({}, {'embedded_field.list_field.2.list_field.2.hello': 1}))
         doc.save()
         doc = doc.reload(10)
 
-        del(doc.embedded_field.list_field[2].list_field)
+        del doc.embedded_field.list_field[2].list_field
         self.assertEqual(doc._delta(),
                          ({}, {'embedded_field.list_field.2.list_field': 1}))
 
@@ -312,29 +315,24 @@ class DeltaTest(unittest.TestCase):
         self.circular_reference_deltas_2(DynamicDocument, Document)
         self.circular_reference_deltas_2(DynamicDocument, DynamicDocument)
 
-    def circular_reference_deltas_2(self, DocClass1, DocClass2):
+    def circular_reference_deltas_2(self, DocClass1, DocClass2, dbref=True):
 
         class Person(DocClass1):
             name = StringField()
-            owns = ListField(ReferenceField('Organization'))
-            employer = ReferenceField('Organization')
+            owns = ListField(ReferenceField('Organization', dbref=dbref))
+            employer = ReferenceField('Organization', dbref=dbref)
 
         class Organization(DocClass2):
             name = StringField()
-            owner = ReferenceField('Person')
-            employees = ListField(ReferenceField('Person'))
+            owner = ReferenceField('Person', dbref=dbref)
+            employees = ListField(ReferenceField('Person', dbref=dbref))
 
         Person.drop_collection()
         Organization.drop_collection()
 
-        person = Person(name="owner")
-        person.save()
-
-        employee = Person(name="employee")
-        employee.save()
-
-        organization = Organization(name="company")
-        organization.save()
+        person = Person(name="owner").save()
+        employee = Person(name="employee").save()
+        organization = Organization(name="company").save()
 
         person.owns.append(organization)
         organization.owner = person
@@ -354,6 +352,8 @@ class DeltaTest(unittest.TestCase):
         self.assertEqual(o.owner, p)
         self.assertEqual(e.employer, o)
 
+        return person, organization, employee
+
     def test_delta_db_field(self):
         self.delta_db_field(Document)
         self.delta_db_field(DynamicDocument)
@@ -550,22 +550,21 @@ class DeltaTest(unittest.TestCase):
         doc.embedded_field.list_field[2].string_field = 'hello world'
         doc.embedded_field.list_field[2] = doc.embedded_field.list_field[2]
         self.assertEqual(doc._get_changed_fields(),
-            ['db_embedded_field.db_list_field'])
-        self.assertEqual(doc.embedded_field._delta(), ({
-            'db_list_field': ['1', 2, {
+            ['db_embedded_field.db_list_field.2'])
+        self.assertEqual(doc.embedded_field._delta(), ({'db_list_field.2': {
             '_cls': 'Embedded',
             'db_string_field': 'hello world',
             'db_int_field': 1,
             'db_list_field': ['1', 2, {'hello': 'world'}],
-            'db_dict_field': {'hello': 'world'}}]}, {}))
+            'db_dict_field': {'hello': 'world'}}}, {}))
         self.assertEqual(doc._delta(), ({
-            'db_embedded_field.db_list_field': ['1', 2, {
+            'db_embedded_field.db_list_field.2': {
                 '_cls': 'Embedded',
                 'db_string_field': 'hello world',
                 'db_int_field': 1,
                 'db_list_field': ['1', 2, {'hello': 'world'}],
                 'db_dict_field': {'hello': 'world'}}
-            ]}, {}))
+            }, {}))
         doc.save()
         doc = doc.reload(10)
         self.assertEqual(doc.embedded_field.list_field[2].string_field,
@@ -594,14 +593,13 @@ class DeltaTest(unittest.TestCase):
         self.assertEqual(doc.embedded_field.list_field[2].list_field,
             [1, 2, {'hello': 'world'}])
 
-        del(doc.embedded_field.list_field[2].list_field[2]['hello'])
+        del doc.embedded_field.list_field[2].list_field[2]['hello']
         self.assertEqual(doc._delta(),
-            ({'db_embedded_field.db_list_field.2.db_list_field':
-                [1, 2, {}]}, {}))
+            ({}, {'db_embedded_field.db_list_field.2.db_list_field.2.hello': 1}))
         doc.save()
         doc = doc.reload(10)
 
-        del(doc.embedded_field.list_field[2].list_field)
+        del doc.embedded_field.list_field[2].list_field
         self.assertEqual(doc._delta(), ({},
             {'db_embedded_field.db_list_field.2.db_list_field': 1}))
 
@@ -613,13 +611,13 @@ class DeltaTest(unittest.TestCase):
         Person.drop_collection()
 
         p = Person(name="James", age=34)
-        self.assertEqual(p._delta(), ({'age': 34, 'name': 'James',
-                                       '_cls': 'Person'}, {}))
+        self.assertEqual(p._delta(), (
+            SON([('_cls', 'Person'), ('name', 'James'), ('age', 34)]), {}))
 
         p.doc = 123
-        del(p.doc)
-        self.assertEqual(p._delta(), ({'age': 34, 'name': 'James',
-                                       '_cls': 'Person'}, {'doc': 1}))
+        del p.doc
+        self.assertEqual(p._delta(), (
+            SON([('_cls', 'Person'), ('name', 'James'), ('age', 34)]), {}))
 
         p = Person()
         p.name = "Dean"
@@ -631,14 +629,14 @@ class DeltaTest(unittest.TestCase):
         self.assertEqual(p._get_changed_fields(), ['age'])
         self.assertEqual(p._delta(), ({'age': 24}, {}))
 
-        p = self.Person.objects(age=22).get()
+        p = Person.objects(age=22).get()
         p.age = 24
         self.assertEqual(p.age, 24)
         self.assertEqual(p._get_changed_fields(), ['age'])
         self.assertEqual(p._delta(), ({'age': 24}, {}))
 
         p.save()
-        self.assertEqual(1, self.Person.objects(age=24).count())
+        self.assertEqual(1, Person.objects(age=24).count())
 
     def test_dynamic_delta(self):
 
@@ -685,6 +683,187 @@ class DeltaTest(unittest.TestCase):
         self.assertEqual(doc._get_changed_fields(), ['list_field'])
         self.assertEqual(doc._delta(), ({}, {'list_field': 1}))
 
+    def test_delta_with_dbref_true(self):
+        person, organization, employee = self.circular_reference_deltas_2(Document, Document, True)
+        employee.name = 'test'
+
+        self.assertEqual(organization._get_changed_fields(), [])
+
+        updates, removals = organization._delta()
+        self.assertEqual({}, removals)
+        self.assertEqual({}, updates)
+
+        organization.employees.append(person)
+        updates, removals = organization._delta()
+        self.assertEqual({}, removals)
+        self.assertTrue('employees' in updates)
+
+    def test_delta_with_dbref_false(self):
+        person, organization, employee = self.circular_reference_deltas_2(Document, Document, False)
+        employee.name = 'test'
+
+        self.assertEqual(organization._get_changed_fields(), [])
+
+        updates, removals = organization._delta()
+        self.assertEqual({}, removals)
+        self.assertEqual({}, updates)
+
+        organization.employees.append(person)
+        updates, removals = organization._delta()
+        self.assertEqual({}, removals)
+        self.assertTrue('employees' in updates)
+
+    def test_nested_nested_fields_mark_as_changed(self):
+        class EmbeddedDoc(EmbeddedDocument):
+            name = StringField()
+
+        class MyDoc(Document):
+            subs = MapField(MapField(EmbeddedDocumentField(EmbeddedDoc)))
+            name = StringField()
+
+        MyDoc.drop_collection()
+
+        mydoc = MyDoc(name='testcase1', subs={'a': {'b': EmbeddedDoc(name='foo')}}).save()
+
+        mydoc = MyDoc.objects.first()
+        subdoc = mydoc.subs['a']['b']
+        subdoc.name = 'bar'
+
+        self.assertEqual(["name"], subdoc._get_changed_fields())
+        self.assertEqual(["subs.a.b.name"], mydoc._get_changed_fields())
+
+        mydoc._clear_changed_fields()
+        self.assertEqual([], mydoc._get_changed_fields())
+
+    def test_lower_level_mark_as_changed(self):
+        class EmbeddedDoc(EmbeddedDocument):
+            name = StringField()
+
+        class MyDoc(Document):
+            subs = MapField(EmbeddedDocumentField(EmbeddedDoc))
+
+        MyDoc.drop_collection()
+
+        MyDoc().save()
+
+        mydoc = MyDoc.objects.first()
+        mydoc.subs['a'] = EmbeddedDoc()
+        self.assertEqual(["subs.a"], mydoc._get_changed_fields())
+
+        subdoc = mydoc.subs['a']
+        subdoc.name = 'bar'
+
+        self.assertEqual(["name"], subdoc._get_changed_fields())
+        self.assertEqual(["subs.a"], mydoc._get_changed_fields())
+        mydoc.save()
+
+        mydoc._clear_changed_fields()
+        self.assertEqual([], mydoc._get_changed_fields())
+
+    def test_upper_level_mark_as_changed(self):
+        class EmbeddedDoc(EmbeddedDocument):
+            name = StringField()
+
+        class MyDoc(Document):
+            subs = MapField(EmbeddedDocumentField(EmbeddedDoc))
+
+        MyDoc.drop_collection()
+
+        MyDoc(subs={'a': EmbeddedDoc(name='foo')}).save()
+
+        mydoc = MyDoc.objects.first()
+        subdoc = mydoc.subs['a']
+        subdoc.name = 'bar'
+
+        self.assertEqual(["name"], subdoc._get_changed_fields())
+        self.assertEqual(["subs.a.name"], mydoc._get_changed_fields())
+
+        mydoc.subs['a'] = EmbeddedDoc()
+        self.assertEqual(["subs.a"], mydoc._get_changed_fields())
+        mydoc.save()
+
+        mydoc._clear_changed_fields()
+        self.assertEqual([], mydoc._get_changed_fields())
+
+    def test_referenced_object_changed_attributes(self):
+        """Ensures that when you save a new reference to a field, the referenced object isn't altered"""
+
+        class Organization(Document):
+            name = StringField()
+
+        class User(Document):
+            name = StringField()
+            org = ReferenceField('Organization', required=True)
+
+        Organization.drop_collection()
+        User.drop_collection()
+
+        org1 = Organization(name='Org 1')
+        org1.save()
+
+        org2 = Organization(name='Org 2')
+        org2.save()
+
+        user = User(name='Fred', org=org1)
+        user.save()
+
+        org1.reload()
+        org2.reload()
+        user.reload()
+        self.assertEqual(org1.name, 'Org 1')
+        self.assertEqual(org2.name, 'Org 2')
+        self.assertEqual(user.name, 'Fred')
+
+        user.name = 'Harold'
+        user.org = org2
+
+        org2.name = 'New Org 2'
+        self.assertEqual(org2.name, 'New Org 2')
+
+        user.save()
+        org2.save()
+
+        self.assertEqual(org2.name, 'New Org 2')
+        org2.reload()
+        self.assertEqual(org2.name, 'New Org 2')
+
+    def test_delta_for_nested_map_fields(self):
+        class UInfoDocument(Document):
+            phone = StringField()
+
+        class EmbeddedRole(EmbeddedDocument):
+            type = StringField()
+
+        class EmbeddedUser(EmbeddedDocument):
+            name = StringField()
+            roles = MapField(field=EmbeddedDocumentField(EmbeddedRole))
+            rolist = ListField(field=EmbeddedDocumentField(EmbeddedRole))
+            info = ReferenceField(UInfoDocument)
+
+        class Doc(Document):
+            users = MapField(field=EmbeddedDocumentField(EmbeddedUser))
+            num = IntField(default=-1)
+
+        Doc.drop_collection()
+
+        doc = Doc(num=1)
+        doc.users["007"] = EmbeddedUser(name="Agent007")
+        doc.save()
+
+        uinfo = UInfoDocument(phone="79089269066")
+        uinfo.save()
+
+        d = Doc.objects(num=1).first()
+        d.users["007"]["roles"]["666"] = EmbeddedRole(type="superadmin")
+        d.users["007"]["rolist"].append(EmbeddedRole(type="oops"))
+        d.users["007"]["info"] = uinfo
+        delta = d._delta()
+        self.assertEqual(True, "users.007.roles.666" in delta[0])
+        self.assertEqual(True, "users.007.rolist" in delta[0])
+        self.assertEqual(True, "users.007.info" in delta[0])
+        self.assertEqual('superadmin', delta[0]["users.007.roles.666"]["type"])
+        self.assertEqual('oops', delta[0]["users.007.rolist"][0]["type"])
+        self.assertEqual(uinfo.id, delta[0]["users.007.info"])
 
 if __name__ == '__main__':
     unittest.main()

tests/document/dynamic.py

@@ -72,7 +72,7 @@ class DynamicTest(unittest.TestCase):
         obj = collection.find_one()
         self.assertEqual(sorted(obj.keys()), ['_cls', '_id', 'misc', 'name'])
 
-        del(p.misc)
+        del p.misc
         p.save()
 
         p = self.Person.objects.get()
@@ -81,6 +81,25 @@ class DynamicTest(unittest.TestCase):
         obj = collection.find_one()
         self.assertEqual(sorted(obj.keys()), ['_cls', '_id', 'name'])
 
+    def test_reload_after_unsetting(self):
+        p = self.Person()
+        p.misc = 22
+        p.save()
+        p.update(unset__misc=1)
+        p.reload()
+
+    def test_reload_dynamic_field(self):
+        self.Person.objects.delete()
+        p = self.Person.objects.create()
+        p.update(age=1)
+
+        self.assertEqual(len(p._data), 3)
+        self.assertEqual(sorted(p._data.keys()), ['_cls', 'id', 'name'])
+
+        p.reload()
+        self.assertEqual(len(p._data), 4)
+        self.assertEqual(sorted(p._data.keys()), ['_cls', 'age', 'id', 'name'])
+
     def test_dynamic_document_queries(self):
         """Ensure we can query dynamic fields"""
         p = self.Person()
@@ -122,6 +141,15 @@ class DynamicTest(unittest.TestCase):
 
         self.assertEqual(1, self.Person.objects(misc__hello='world').count())
 
+    def test_three_level_complex_data_lookups(self):
+        """Ensure you can query three level document dynamic fields"""
+        p = self.Person()
+        p.misc = {'hello': {'hello2': 'world'}}
+        p.save()
+        # from pprint import pprint as pp; import pdb; pdb.set_trace();
+        print self.Person.objects(misc__hello__hello2='world')
+        self.assertEqual(1, self.Person.objects(misc__hello__hello2='world').count())
+
     def test_complex_embedded_document_validation(self):
         """Ensure embedded dynamic documents may be validated"""
         class Embedded(DynamicEmbeddedDocument):
@@ -292,6 +320,58 @@ class DynamicTest(unittest.TestCase):
         person.save()
         self.assertEqual(Person.objects.first().age, 35)
 
+    def test_dynamic_embedded_works_with_only(self):
+        """Ensure custom fieldnames on a dynamic embedded document are found by qs.only()"""
+
+        class Address(DynamicEmbeddedDocument):
+            city = StringField()
+
+        class Person(DynamicDocument):
+            address = EmbeddedDocumentField(Address)
+
+        Person.drop_collection()
+
+        Person(name="Eric", address=Address(city="San Francisco", street_number="1337")).save()
+
+        self.assertEqual(Person.objects.first().address.street_number, '1337')
+        self.assertEqual(Person.objects.only('address__street_number').first().address.street_number, '1337')
+
+    def test_dynamic_and_embedded_dict_access(self):
+        """Ensure embedded dynamic documents work with dict[] style access"""
+
+        class Address(EmbeddedDocument):
+            city = StringField()
+
+        class Person(DynamicDocument):
+            name = StringField()
+
+        Person.drop_collection()
+
+        Person(name="Ross", address=Address(city="London")).save()
+
+        person = Person.objects.first()
+        person.attrval = "This works"
+
+        person["phone"] = "555-1212"  # but this should too
+
+        # Same thing two levels deep
+        person["address"]["city"] = "Lundenne"
+        person.save()
+
+        self.assertEqual(Person.objects.first().address.city, "Lundenne")
+
+        self.assertEqual(Person.objects.first().phone, "555-1212")
+
+        person = Person.objects.first()
+        person.address = Address(city="Londinium")
+        person.save()
+
+        self.assertEqual(Person.objects.first().address.city, "Londinium")
+
+        person = Person.objects.first()
+        person["age"] = 35
+        person.save()
+        self.assertEqual(Person.objects.first().age, 35)
 
 if __name__ == '__main__':
     unittest.main()

tests/document/indexes.py

@@ -1,9 +1,9 @@
 # -*- coding: utf-8 -*-
 import unittest
 import sys
+
 sys.path[0:0] = [""]
 
-import os
 import pymongo
 
 from nose.plugins.skip import SkipTest
@@ -18,7 +18,7 @@ __all__ = ("IndexesTest", )
 class IndexesTest(unittest.TestCase):
 
     def setUp(self):
-        connect(db='mongoenginetest')
+        self.connection = connect(db='mongoenginetest')
         self.db = get_db()
 
         class Person(Document):
@@ -143,7 +143,7 @@ class IndexesTest(unittest.TestCase):
             meta = {
                 'indexes': [
                         {
-                        'fields': ('title',),
+                            'fields': ('title',),
                         },
                 ],
                 'allow_inheritance': True,
@@ -156,6 +156,35 @@ class IndexesTest(unittest.TestCase):
         self.assertEqual([{'fields': [('_cls', 1), ('title', 1)]}],
                          A._meta['index_specs'])
 
+    def test_index_no_cls(self):
+        """Ensure index specs are inhertited correctly"""
+
+        class A(Document):
+            title = StringField()
+            meta = {
+                'indexes': [
+                        {'fields': ('title',), 'cls': False},
+                ],
+                'allow_inheritance': True,
+                'index_cls': False
+                }
+
+        self.assertEqual([('title', 1)], A._meta['index_specs'][0]['fields'])
+        A._get_collection().drop_indexes()
+        A.ensure_indexes()
+        info = A._get_collection().index_information()
+        self.assertEqual(len(info.keys()), 2)
+
+        class B(A):
+            c = StringField()
+            d = StringField()
+            meta = {
+                'indexes': [{'fields': ['c']}, {'fields': ['d'], 'cls': True}],
+                'allow_inheritance': True
+            }
+        self.assertEqual([('c', 1)], B._meta['index_specs'][1]['fields'])
+        self.assertEqual([('_cls', 1), ('d', 1)], B._meta['index_specs'][2]['fields'])
+
     def test_build_index_spec_is_not_destructive(self):
 
         class MyDoc(Document):
@@ -246,6 +275,60 @@ class IndexesTest(unittest.TestCase):
         info = [value['key'] for key, value in info.iteritems()]
         self.assertTrue([('current.location.point', '2d')] in info)
 
+    def test_explicit_geosphere_index(self):
+        """Ensure that geosphere indexes work when created via meta[indexes]
+        """
+        class Place(Document):
+            location = DictField()
+            meta = {
+                'allow_inheritance': True,
+                'indexes': [
+                    '(location.point',
+                ]
+            }
+
+        self.assertEqual([{'fields': [('location.point', '2dsphere')]}],
+                         Place._meta['index_specs'])
+
+        Place.ensure_indexes()
+        info = Place._get_collection().index_information()
+        info = [value['key'] for key, value in info.iteritems()]
+        self.assertTrue([('location.point', '2dsphere')] in info)
+
+    def test_explicit_geohaystack_index(self):
+        """Ensure that geohaystack indexes work when created via meta[indexes]
+        """
+        raise SkipTest('GeoHaystack index creation is not supported for now'
+                       'from meta, as it requires a bucketSize parameter.')
+
+        class Place(Document):
+            location = DictField()
+            name = StringField()
+            meta = {
+                'indexes': [
+                    (')location.point', 'name')
+                ]
+            }
+        self.assertEqual([{'fields': [('location.point', 'geoHaystack'), ('name', 1)]}],
+                         Place._meta['index_specs'])
+
+        Place.ensure_indexes()
+        info = Place._get_collection().index_information()
+        info = [value['key'] for key, value in info.iteritems()]
+        self.assertTrue([('location.point', 'geoHaystack')] in info)
+
+    def test_create_geohaystack_index(self):
+        """Ensure that geohaystack indexes can be created
+        """
+        class Place(Document):
+            location = DictField()
+            name = StringField()
+
+        Place.create_index({'fields': (')location.point', 'name')}, bucketSize=10)
+        info = Place._get_collection().index_information()
+        info = [value['key'] for key, value in info.iteritems()]
+        self.assertTrue([('location.point', 'geoHaystack'), ('name', 1)] in info)
+
     def test_dictionary_indexes(self):
         """Ensure that indexes are used when meta[indexes] contains
         dictionaries instead of lists.
@@ -403,6 +486,7 @@ class IndexesTest(unittest.TestCase):
 
         class Test(Document):
             a = IntField()
+            b = IntField()
 
             meta = {
                 'indexes': ['a'],
@@ -414,16 +498,36 @@ class IndexesTest(unittest.TestCase):
         obj = Test(a=1)
         obj.save()
 
+        connection = get_connection()
+        IS_MONGODB_3 = connection.server_info()['versionArray'][0] >= 3
+
         # Need to be explicit about covered indexes as mongoDB doesn't know if
         # the documents returned might have more keys in that here.
         query_plan = Test.objects(id=obj.id).exclude('a').explain()
-        self.assertFalse(query_plan['indexOnly'])
+        if not IS_MONGODB_3:
+            self.assertFalse(query_plan['indexOnly'])
+        else:
+            self.assertEqual(query_plan.get('queryPlanner').get('winningPlan').get('inputStage').get('stage'), 'IDHACK')
 
         query_plan = Test.objects(id=obj.id).only('id').explain()
-        self.assertTrue(query_plan['indexOnly'])
+        if not IS_MONGODB_3:
+            self.assertTrue(query_plan['indexOnly'])
+        else:
+            self.assertEqual(query_plan.get('queryPlanner').get('winningPlan').get('inputStage').get('stage'), 'IDHACK')
 
         query_plan = Test.objects(a=1).only('a').exclude('id').explain()
-        self.assertTrue(query_plan['indexOnly'])
+        if not IS_MONGODB_3:
+            self.assertTrue(query_plan['indexOnly'])
+        else:
+            self.assertEqual(query_plan.get('queryPlanner').get('winningPlan').get('inputStage').get('stage'), 'IXSCAN')
+            self.assertEqual(query_plan.get('queryPlanner').get('winningPlan').get('stage'), 'PROJECTION')
+
+        query_plan = Test.objects(a=1).explain()
+        if not IS_MONGODB_3:
+            self.assertFalse(query_plan['indexOnly'])
+        else:
+            self.assertEqual(query_plan.get('queryPlanner').get('winningPlan').get('inputStage').get('stage'), 'IXSCAN')
+            self.assertEqual(query_plan.get('queryPlanner').get('winningPlan').get('stage'), 'FETCH')
 
     def test_index_on_id(self):
 
@@ -462,17 +566,23 @@ class IndexesTest(unittest.TestCase):
 
         self.assertEqual(BlogPost.objects.count(), 10)
         self.assertEqual(BlogPost.objects.hint().count(), 10)
-        self.assertEqual(BlogPost.objects.hint([('tags', 1)]).count(), 10)
 
-        self.assertEqual(BlogPost.objects.hint([('ZZ', 1)]).count(), 10)
+        # PyMongo 3.0 bug only, works correctly with 2.X and 3.0.1+ versions
+        if pymongo.version != '3.0':
+            self.assertEqual(BlogPost.objects.hint([('tags', 1)]).count(), 10)
 
-        def invalid_index():
-            BlogPost.objects.hint('tags')
-        self.assertRaises(TypeError, invalid_index)
+            self.assertEqual(BlogPost.objects.hint([('ZZ', 1)]).count(), 10)
+
+        if pymongo.version >= '2.8':
+            self.assertEqual(BlogPost.objects.hint('tags').count(), 10)
+        else:
+            def invalid_index():
+                BlogPost.objects.hint('tags').next()
+            self.assertRaises(TypeError, invalid_index)
 
         def invalid_index_2():
-            return BlogPost.objects.hint(('tags', 1))
-        self.assertRaises(TypeError, invalid_index_2)
+            return BlogPost.objects.hint(('tags', 1)).next()
+        self.assertRaises(Exception, invalid_index_2)
 
     def test_unique(self):
         """Ensure that uniqueness constraints are applied to fields.
@@ -548,6 +658,38 @@ class IndexesTest(unittest.TestCase):
 
         BlogPost.drop_collection()
 
+    def test_unique_embedded_document_in_list(self):
+        """
+        Ensure that the uniqueness constraints are applied to fields in
+        embedded documents, even when the embedded documents in in a
+        list field.
+        """
+        class SubDocument(EmbeddedDocument):
+            year = IntField(db_field='yr')
+            slug = StringField(unique=True)
+
+        class BlogPost(Document):
+            title = StringField()
+            subs = ListField(EmbeddedDocumentField(SubDocument))
+
+        BlogPost.drop_collection()
+
+        post1 = BlogPost(
+            title='test1', subs=[
+                SubDocument(year=2009, slug='conflict'),
+                SubDocument(year=2009, slug='conflict')
+            ]
+        )
+        post1.save()
+
+        post2 = BlogPost(
+            title='test2', subs=[SubDocument(year=2014, slug='conflict')]
+        )
+
+        self.assertRaises(NotUniqueError, post2.save)
+
+        BlogPost.drop_collection()
+
     def test_unique_with_embedded_document_and_embedded_unique(self):
         """Ensure that uniqueness constraints are applied to fields on
         embedded documents.  And work with unique_with as well.
@@ -708,5 +850,155 @@ class IndexesTest(unittest.TestCase):
                          report.to_mongo())
         self.assertEqual(report, Report.objects.get(pk=my_key))
 
+    def test_string_indexes(self):
+
+        class MyDoc(Document):
+            provider_ids = DictField()
+            meta = {
+                "indexes": ["provider_ids.foo", "provider_ids.bar"],
+            }
+
+        info = MyDoc.objects._collection.index_information()
+        info = [value['key'] for key, value in info.iteritems()]
+        self.assertTrue([('provider_ids.foo', 1)] in info)
+        self.assertTrue([('provider_ids.bar', 1)] in info)
+
+    def test_text_indexes(self):
+
+        class Book(Document):
+            title = DictField()
+            meta = {
+                "indexes": ["$title"],
+            }
+
+        indexes = Book.objects._collection.index_information()
+        self.assertTrue("title_text" in indexes)
+        key = indexes["title_text"]["key"]
+        self.assertTrue(('_fts', 'text') in key)
+
+    def test_hashed_indexes(self):
+
+        class Book(Document):
+            ref_id = StringField()
+            meta = {
+                "indexes": ["#ref_id"],
+            }
+
+        indexes = Book.objects._collection.index_information()
+        self.assertTrue("ref_id_hashed" in indexes)
+        self.assertTrue(('ref_id', 'hashed') in indexes["ref_id_hashed"]["key"])
+
+    def test_indexes_after_database_drop(self):
+        """
+        Test to ensure that indexes are re-created on a collection even
+        after the database has been dropped.
+
+        Issue #812
+        """
+        class BlogPost(Document):
+            title = StringField()
+            slug = StringField(unique=True)
+
+        BlogPost.drop_collection()
+
+        # Create Post #1
+        post1 = BlogPost(title='test1', slug='test')
+        post1.save()
+
+        # Drop the Database
+        self.connection.drop_database(BlogPost._get_db().name)
+
+        # Re-create Post #1
+        post1 = BlogPost(title='test1', slug='test')
+        post1.save()
+
+        # Create Post #2
+        post2 = BlogPost(title='test2', slug='test')
+        self.assertRaises(NotUniqueError, post2.save)
+
+    def test_index_dont_send_cls_option(self):
+        """
+        Ensure that 'cls' option is not sent through ensureIndex. We shouldn't
+        send internal MongoEngine arguments that are not a part of the index
+        spec.
+
+        This is directly related to the fact that MongoDB doesn't validate the
+        options that are passed to ensureIndex. For more details, see:
+        https://jira.mongodb.org/browse/SERVER-769
+        """
+        class TestDoc(Document):
+            txt = StringField()
+
+            meta = {
+                'allow_inheritance': True,
+                'indexes': [
+                    {'fields': ('txt',), 'cls': False}
+                ]
+            }
+
+        class TestChildDoc(TestDoc):
+            txt2 = StringField()
+
+            meta = {
+                'indexes': [
+                    {'fields': ('txt2',), 'cls': False}
+                ]
+            }
+
+        TestDoc.drop_collection()
+        TestDoc.ensure_indexes()
+        TestChildDoc.ensure_indexes()
+
+        index_info = TestDoc._get_collection().index_information()
+        for key in index_info:
+            del index_info[key]['v']  # drop the index version - we don't care about that here
+            if 'ns' in index_info[key]:
+                del index_info[key]['ns']  # drop the index namespace - we don't care about that here, MongoDB 3+
+            if 'dropDups' in index_info[key]:
+                del index_info[key]['dropDups']  # drop the index dropDups - it is deprecated in MongoDB 3+
+
+        self.assertEqual(index_info, {
+            'txt_1': {
+                'key': [('txt', 1)],
+                'background': False
+            },
+            '_id_': {
+                'key': [('_id', 1)],
+            },
+            'txt2_1': {
+                'key': [('txt2', 1)],
+                'background': False
+            },
+            '_cls_1': {
+                'key': [('_cls', 1)],
+                'background': False,
+            }
+        })
+
+    def test_compound_index_underscore_cls_not_overwritten(self):
+        """
+        Test that the compound index doesn't get another _cls when it is specified
+        """
+        class TestDoc(Document):
+            shard_1 = StringField()
+            txt_1 = StringField()
+
+            meta = {
+                'collection': 'test',
+                'allow_inheritance': True,
+                'sparse': True,
+                'shard_key': 'shard_1',
+                'indexes': [
+                    ('shard_1', '_cls', 'txt_1'),
+                ]
+            }
+
+        TestDoc.drop_collection()
+        TestDoc.ensure_indexes()
+
+        index_info = TestDoc._get_collection().index_information()
+        self.assertTrue('shard_1_1__cls_1_txt_1_1' in index_info)
+
+
 if __name__ == '__main__':
     unittest.main()

tests/document/inheritance.py

@@ -163,7 +163,7 @@ class InheritanceTest(unittest.TestCase):
         class Employee(Person):
             salary = IntField()
 
-        self.assertEqual(['age', 'id', 'name', 'salary'],
+        self.assertEqual(['_cls', 'age', 'id', 'name', 'salary'],
                          sorted(Employee._fields.keys()))
         self.assertEqual(Employee._get_collection_name(),
                          Person._get_collection_name())
@@ -180,7 +180,7 @@ class InheritanceTest(unittest.TestCase):
         class Employee(Person):
             salary = IntField()
 
-        self.assertEqual(['age', 'id', 'name', 'salary'],
+        self.assertEqual(['_cls', 'age', 'id', 'name', 'salary'],
                          sorted(Employee._fields.keys()))
         self.assertEqual(Person(name="Bob", age=35).to_mongo().keys(),
                          ['_cls', 'name', 'age'])
@@ -189,6 +189,41 @@ class InheritanceTest(unittest.TestCase):
         self.assertEqual(Employee._get_collection_name(),
                          Person._get_collection_name())
 
+    def test_indexes_and_multiple_inheritance(self):
+        """ Ensure that all of the indexes are created for a document with
+        multiple inheritance.
+        """
+
+        class A(Document):
+            a = StringField()
+
+            meta = {
+                'allow_inheritance': True,
+                'indexes': ['a']
+            }
+
+        class B(Document):
+            b = StringField()
+
+            meta = {
+                'allow_inheritance': True,
+                'indexes': ['b']
+            }
+
+        class C(A, B):
+            pass
+
+        A.drop_collection()
+        B.drop_collection()
+        C.drop_collection()
+
+        C.ensure_indexes()
+
+        self.assertEqual(
+            sorted([idx['key'] for idx in C._get_collection().index_information().values()]),
+            sorted([[(u'_cls', 1), (u'b', 1)], [(u'_id', 1)], [(u'_cls', 1), (u'a', 1)]])
+        )
+
     def test_polymorphic_queries(self):
         """Ensure that the correct subclasses are returned from a query
         """
@@ -272,6 +307,69 @@ class InheritanceTest(unittest.TestCase):
         doc = Animal(name='dog')
         self.assertFalse('_cls' in doc.to_mongo())
 
+    def test_abstract_handle_ids_in_metaclass_properly(self):
+
+        class City(Document):
+            continent = StringField()
+            meta = {'abstract': True,
+                    'allow_inheritance': False}
+
+        class EuropeanCity(City):
+            name = StringField()
+
+        berlin = EuropeanCity(name='Berlin', continent='Europe')
+        self.assertEqual(len(berlin._db_field_map), len(berlin._fields_ordered))
+        self.assertEqual(len(berlin._reverse_db_field_map), len(berlin._fields_ordered))
+        self.assertEqual(len(berlin._fields_ordered), 3)
+        self.assertEqual(berlin._fields_ordered[0], 'id')
+
+    def test_auto_id_not_set_if_specific_in_parent_class(self):
+
+        class City(Document):
+            continent = StringField()
+            city_id = IntField(primary_key=True)
+            meta = {'abstract': True,
+                    'allow_inheritance': False}
+
+        class EuropeanCity(City):
+            name = StringField()
+
+        berlin = EuropeanCity(name='Berlin', continent='Europe')
+        self.assertEqual(len(berlin._db_field_map), len(berlin._fields_ordered))
+        self.assertEqual(len(berlin._reverse_db_field_map), len(berlin._fields_ordered))
+        self.assertEqual(len(berlin._fields_ordered), 3)
+        self.assertEqual(berlin._fields_ordered[0], 'city_id')
+
+    def test_auto_id_vs_non_pk_id_field(self):
+
+        class City(Document):
+            continent = StringField()
+            id = IntField()
+            meta = {'abstract': True,
+                    'allow_inheritance': False}
+
+        class EuropeanCity(City):
+            name = StringField()
+
+        berlin = EuropeanCity(name='Berlin', continent='Europe')
+        self.assertEqual(len(berlin._db_field_map), len(berlin._fields_ordered))
+        self.assertEqual(len(berlin._reverse_db_field_map), len(berlin._fields_ordered))
+        self.assertEqual(len(berlin._fields_ordered), 4)
+        self.assertEqual(berlin._fields_ordered[0], 'auto_id_0')
+        berlin.save()
+        self.assertEqual(berlin.pk, berlin.auto_id_0)
+
+    def test_abstract_document_creation_does_not_fail(self):
+
+        class City(Document):
+            continent = StringField()
+            meta = {'abstract': True,
+                    'allow_inheritance': False}
+        bkk = City(continent='asia')
+        self.assertEqual(None, bkk.pk)
+        # TODO: expected error? Shouldn't we create a new error type?
+        self.assertRaises(KeyError, lambda: setattr(bkk, 'pk', 1))
+
     def test_allow_inheritance_embedded_document(self):
         """Ensure embedded documents respect inheritance
         """
@@ -362,6 +460,16 @@ class InheritanceTest(unittest.TestCase):
                 meta = {'abstract': True}
         self.assertRaises(ValueError, create_bad_abstract)
 
+    def test_abstract_embedded_documents(self):
+        # 789: EmbeddedDocument shouldn't inherit abstract
+        class A(EmbeddedDocument):
+            meta = {"abstract": True}
+
+        class B(A):
+            pass
+
+        self.assertFalse(B._meta["abstract"])
+
     def test_inherited_collections(self):
         """Ensure that subclassed documents don't override parents'
         collections

tests/document/json_serialisation.py

@@ -20,6 +20,28 @@ class TestJson(unittest.TestCase):
     def setUp(self):
         connect(db='mongoenginetest')
 
+    def test_json_names(self):
+        """
+        Going to test reported issue:
+            https://github.com/MongoEngine/mongoengine/issues/654
+        where the reporter asks for the availability to perform
+        a to_json with the original class names and not the abreviated
+        mongodb document keys
+        """
+        class Embedded(EmbeddedDocument):
+            string = StringField(db_field='s')
+
+        class Doc(Document):
+            string = StringField(db_field='s')
+            embedded = EmbeddedDocumentField(Embedded, db_field='e')
+
+        doc = Doc( string="Hello", embedded=Embedded(string="Inner Hello"))
+        doc_json = doc.to_json(sort_keys=True, use_db_field=False,separators=(',', ':'))
+
+        expected_json = """{"embedded":{"string":"Inner Hello"},"string":"Hello"}"""
+
+        self.assertEqual( doc_json, expected_json)
+
     def test_json_simple(self):
 
         class Embedded(EmbeddedDocument):
@@ -29,8 +51,16 @@ class TestJson(unittest.TestCase):
             string = StringField()
             embedded_field = EmbeddedDocumentField(Embedded)
 
+            def __eq__(self, other):
+                return (self.string == other.string and
+                        self.embedded_field == other.embedded_field)
+
         doc = Doc(string="Hi", embedded_field=Embedded(string="Hi"))
 
+        doc_json = doc.to_json(sort_keys=True, separators=(',', ':'))
+        expected_json = """{"embedded_field":{"string":"Hi"},"string":"Hi"}"""
+        self.assertEqual(doc_json, expected_json)
+
         self.assertEqual(doc, Doc.from_json(doc.to_json()))
 
     def test_json_complex(self):
@@ -73,6 +103,10 @@ class TestJson(unittest.TestCase):
             generic_embedded_document_field = GenericEmbeddedDocumentField(
                                         default=lambda: EmbeddedDoc())
 
+            def __eq__(self, other):
+                import json
+                return json.loads(self.to_json()) == json.loads(other.to_json())
+
         doc = Doc()
         self.assertEqual(doc, Doc.from_json(doc.to_json()))
 

tests/document/validation.py

@@ -141,6 +141,77 @@ class ValidatorErrorTest(unittest.TestCase):
             self.assertEqual(e.to_dict(), {
                 "e": {'val': 'OK could not be converted to int'}})
 
+    def test_embedded_weakref(self):
+
+        class SubDoc(EmbeddedDocument):
+            val = IntField(required=True)
+
+        class Doc(Document):
+            e = EmbeddedDocumentField(SubDoc, db_field='eb')
+
+        Doc.drop_collection()
+
+        d1 = Doc()
+        d2 = Doc()
+
+        s = SubDoc()
+
+        self.assertRaises(ValidationError, lambda: s.validate())
+
+        d1.e = s
+        d2.e = s
+
+        del d1
+
+        self.assertRaises(ValidationError, lambda: d2.validate())
+
+    def test_parent_reference_in_child_document(self):
+        """
+        Test to ensure a ReferenceField can store a reference to a parent
+        class when inherited. Issue #954.
+        """
+        class Parent(Document):
+            meta = {'allow_inheritance': True}
+            reference = ReferenceField('self')
+
+        class Child(Parent):
+            pass
+
+        parent = Parent()
+        parent.save()
+
+        child = Child(reference=parent)
+
+        # Saving child should not raise a ValidationError
+        try:
+            child.save()
+        except ValidationError as e:
+            self.fail("ValidationError raised: %s" % e.message)
+
+    def test_parent_reference_set_as_attribute_in_child_document(self):
+        """
+        Test to ensure a ReferenceField can store a reference to a parent
+        class when inherited and when set via attribute. Issue #954.
+        """
+        class Parent(Document):
+            meta = {'allow_inheritance': True}
+            reference = ReferenceField('self')
+
+        class Child(Parent):
+            pass
+
+        parent = Parent()
+        parent.save()
+
+        child = Child()
+        child.reference = parent
+
+        # Saving the child should not raise a ValidationError
+        try:
+            child.save()
+        except ValidationError as e:
+            self.fail("ValidationError raised: %s" % e.message)
+
 
 if __name__ == '__main__':
     unittest.main()

tests/fields/__init__.py

@@ -1,3 +1,3 @@
 from fields import *
 from file_tests import *
-from geo import *
+from geo import *

tests/fields/file_tests.py

@@ -12,7 +12,13 @@ import gridfs
 from nose.plugins.skip import SkipTest
 from mongoengine import *
 from mongoengine.connection import get_db
-from mongoengine.python_support import PY3, b, StringIO
+from mongoengine.python_support import b, StringIO
+
+try:
+    from PIL import Image
+    HAS_PIL = True
+except ImportError:
+    HAS_PIL = False
 
 TEST_IMAGE_PATH = os.path.join(os.path.dirname(__file__), 'mongoengine.png')
 TEST_IMAGE2_PATH = os.path.join(os.path.dirname(__file__), 'mongodb_leaf.png')
@@ -47,11 +53,12 @@ class FileTest(unittest.TestCase):
         content_type = 'text/plain'
 
         putfile = PutFile()
-        putfile.the_file.put(text, content_type=content_type)
+        putfile.the_file.put(text, content_type=content_type, filename="hello")
         putfile.save()
 
         result = PutFile.objects.first()
         self.assertTrue(putfile == result)
+        self.assertEqual("%s" % result.the_file, "<GridFSProxy: hello>")
         self.assertEqual(result.the_file.read(), text)
         self.assertEqual(result.the_file.content_type, content_type)
         result.the_file.delete()  # Remove file from GridFS
@@ -105,7 +112,43 @@ class FileTest(unittest.TestCase):
         result.the_file.delete()
 
         # Ensure deleted file returns None
-        self.assertTrue(result.the_file.read() == None)
+        self.assertTrue(result.the_file.read() is None)
+
+    def test_file_fields_stream_after_none(self):
+        """Ensure that a file field can be written to after it has been saved as
+        None
+        """
+        class StreamFile(Document):
+            the_file = FileField()
+
+        StreamFile.drop_collection()
+
+        text = b('Hello, World!')
+        more_text = b('Foo Bar')
+        content_type = 'text/plain'
+
+        streamfile = StreamFile()
+        streamfile.save()
+        streamfile.the_file.new_file()
+        streamfile.the_file.write(text)
+        streamfile.the_file.write(more_text)
+        streamfile.the_file.close()
+        streamfile.save()
+
+        result = StreamFile.objects.first()
+        self.assertTrue(streamfile == result)
+        self.assertEqual(result.the_file.read(), text + more_text)
+        # self.assertEqual(result.the_file.content_type, content_type)
+        result.the_file.seek(0)
+        self.assertEqual(result.the_file.tell(), 0)
+        self.assertEqual(result.the_file.read(len(text)), text)
+        self.assertEqual(result.the_file.tell(), len(text))
+        self.assertEqual(result.the_file.read(len(more_text)), more_text)
+        self.assertEqual(result.the_file.tell(), len(text + more_text))
+        result.the_file.delete()
+
+        # Ensure deleted file returns None
+        self.assertTrue(result.the_file.read() is None)
 
     def test_file_fields_set(self):
 
@@ -254,15 +297,91 @@ class FileTest(unittest.TestCase):
         test_file = TestFile()
         self.assertFalse(test_file.the_file in [{"test": 1}])
 
+    def test_file_disk_space(self): 
+        """ Test disk space usage when we delete/replace a file """ 
+        class TestFile(Document):
+            the_file = FileField()
+            
+        text = b('Hello, World!')
+        content_type = 'text/plain'
+
+        testfile = TestFile()
+        testfile.the_file.put(text, content_type=content_type, filename="hello")
+        testfile.save()
+        
+        # Now check fs.files and fs.chunks 
+        db = TestFile._get_db()
+        
+        files = db.fs.files.find()
+        chunks = db.fs.chunks.find()
+        self.assertEquals(len(list(files)), 1)
+        self.assertEquals(len(list(chunks)), 1)
+
+        # Deleting the docoument should delete the files 
+        testfile.delete()
+        
+        files = db.fs.files.find()
+        chunks = db.fs.chunks.find()
+        self.assertEquals(len(list(files)), 0)
+        self.assertEquals(len(list(chunks)), 0)
+        
+        # Test case where we don't store a file in the first place 
+        testfile = TestFile()
+        testfile.save()
+        
+        files = db.fs.files.find()
+        chunks = db.fs.chunks.find()
+        self.assertEquals(len(list(files)), 0)
+        self.assertEquals(len(list(chunks)), 0)
+        
+        testfile.delete()
+        
+        files = db.fs.files.find()
+        chunks = db.fs.chunks.find()
+        self.assertEquals(len(list(files)), 0)
+        self.assertEquals(len(list(chunks)), 0)
+        
+        # Test case where we overwrite the file 
+        testfile = TestFile()
+        testfile.the_file.put(text, content_type=content_type, filename="hello")
+        testfile.save()
+        
+        text = b('Bonjour, World!')
+        testfile.the_file.replace(text, content_type=content_type, filename="hello")
+        testfile.save()
+        
+        files = db.fs.files.find()
+        chunks = db.fs.chunks.find()
+        self.assertEquals(len(list(files)), 1)
+        self.assertEquals(len(list(chunks)), 1)
+        
+        testfile.delete()
+        
+        files = db.fs.files.find()
+        chunks = db.fs.chunks.find()
+        self.assertEquals(len(list(files)), 0)
+        self.assertEquals(len(list(chunks)), 0)
+
     def test_image_field(self):
-        if PY3:
-            raise SkipTest('PIL does not have Python 3 support')
+        if not HAS_PIL:
+            raise SkipTest('PIL not installed')
 
         class TestImage(Document):
             image = ImageField()
 
         TestImage.drop_collection()
 
+        with tempfile.TemporaryFile() as f:
+            f.write(b("Hello World!"))
+            f.flush()
+
+            t = TestImage()
+            try:
+                t.image.put(f)
+                self.fail("Should have raised an invalidation error")
+            except ValidationError, e:
+                self.assertEqual("%s" % e, "Invalid image: cannot identify image file %s" % f)
+
         t = TestImage()
         t.image.put(open(TEST_IMAGE_PATH, 'rb'))
         t.save()
@@ -278,8 +397,8 @@ class FileTest(unittest.TestCase):
         t.image.delete()
 
     def test_image_field_reassigning(self):
-        if PY3:
-            raise SkipTest('PIL does not have Python 3 support')
+        if not HAS_PIL:
+            raise SkipTest('PIL not installed')
 
         class TestFile(Document):
             the_file = ImageField()
@@ -294,8 +413,8 @@ class FileTest(unittest.TestCase):
         self.assertEqual(test_file.the_file.size, (45, 101))
 
     def test_image_field_resize(self):
-        if PY3:
-            raise SkipTest('PIL does not have Python 3 support')
+        if not HAS_PIL:
+            raise SkipTest('PIL not installed')
 
         class TestImage(Document):
             image = ImageField(size=(185, 37))
@@ -317,8 +436,8 @@ class FileTest(unittest.TestCase):
         t.image.delete()
 
     def test_image_field_resize_force(self):
-        if PY3:
-            raise SkipTest('PIL does not have Python 3 support')
+        if not HAS_PIL:
+            raise SkipTest('PIL not installed')
 
         class TestImage(Document):
             image = ImageField(size=(185, 37, True))
@@ -340,8 +459,8 @@ class FileTest(unittest.TestCase):
         t.image.delete()
 
     def test_image_field_thumbnail(self):
-        if PY3:
-            raise SkipTest('PIL does not have Python 3 support')
+        if not HAS_PIL:
+            raise SkipTest('PIL not installed')
 
         class TestImage(Document):
             image = ImageField(thumbnail_size=(92, 18))
@@ -388,6 +507,14 @@ class FileTest(unittest.TestCase):
         self.assertEqual(test_file.the_file.read(),
                           b('Hello, World!'))
 
+        test_file = TestFile.objects.first()
+        test_file.the_file = b('HELLO, WORLD!')
+        test_file.save()
+
+        test_file = TestFile.objects.first()
+        self.assertEqual(test_file.the_file.read(),
+                          b('HELLO, WORLD!'))
+
     def test_copyable(self):
         class PutFile(Document):
             the_file = FileField()
@@ -407,6 +534,54 @@ class FileTest(unittest.TestCase):
         self.assertEqual(putfile, copy.copy(putfile))
         self.assertEqual(putfile, copy.deepcopy(putfile))
 
+    def test_get_image_by_grid_id(self):
+
+        if not HAS_PIL:
+            raise SkipTest('PIL not installed')
+
+        class TestImage(Document):
+
+            image1 = ImageField()
+            image2 = ImageField()
+
+        TestImage.drop_collection()
+
+        t = TestImage()
+        t.image1.put(open(TEST_IMAGE_PATH, 'rb'))
+        t.image2.put(open(TEST_IMAGE2_PATH, 'rb'))
+        t.save()
+
+        test = TestImage.objects.first()
+        grid_id = test.image1.grid_id
+
+        self.assertEqual(1, TestImage.objects(Q(image1=grid_id)
+                                              or Q(image2=grid_id)).count())
+
+    def test_complex_field_filefield(self):
+        """Ensure you can add meta data to file"""
+
+        class Animal(Document):
+            genus = StringField()
+            family = StringField()
+            photos = ListField(FileField())
+
+        Animal.drop_collection()
+        marmot = Animal(genus='Marmota', family='Sciuridae')
+
+        marmot_photo = open(TEST_IMAGE_PATH, 'rb')  # Retrieve a photo from disk
+
+        photos_field = marmot._fields['photos'].field
+        new_proxy = photos_field.get_proxy_obj('photos', marmot)
+        new_proxy.put(marmot_photo, content_type='image/jpeg', foo='bar')
+        marmot_photo.close()
+
+        marmot.photos.append(new_proxy)
+        marmot.save()
+
+        marmot = Animal.objects.get()
+        self.assertEqual(marmot.photos[0].content_type, 'image/jpeg')
+        self.assertEqual(marmot.photos[0].foo, 'bar')
+        self.assertEqual(marmot.photos[0].get().length, 8313)
 
 if __name__ == '__main__':
     unittest.main()

tests/fields/geo.py

@@ -19,8 +19,8 @@ class GeoFieldTest(unittest.TestCase):
     def _test_for_expected_error(self, Cls, loc, expected):
         try:
             Cls(loc=loc).validate()
-            self.fail()
-        except ValidationError, e:
+            self.fail('Should not validate the location {0}'.format(loc))
+        except ValidationError as e:
             self.assertEqual(expected, e.to_dict()['loc'])
 
     def test_geopoint_validation(self):
@@ -75,6 +75,12 @@ class GeoFieldTest(unittest.TestCase):
             self._test_for_expected_error(Location, coord, expected)
 
         Location(loc=[1, 2]).validate()
+        Location(loc={
+            "type": "Point",
+            "coordinates": [
+              81.4471435546875,
+              23.61432859499169
+            ]}).validate()
 
     def test_linestring_validation(self):
         class Location(Document):
@@ -109,7 +115,7 @@ class GeoFieldTest(unittest.TestCase):
             expected = "Invalid LineString:\nBoth values (%s) in point must be float or int" % repr(coord[0])
             self._test_for_expected_error(Location, coord, expected)
 
-        Location(loc=[[1, 2], [3, 4], [5, 6], [1,2]]).validate()
+        Location(loc=[[1, 2], [3, 4], [5, 6], [1, 2]]).validate()
 
     def test_polygon_validation(self):
         class Location(Document):
@@ -149,6 +155,117 @@ class GeoFieldTest(unittest.TestCase):
 
         Location(loc=[[[1, 2], [3, 4], [5, 6], [1, 2]]]).validate()
 
+    def test_multipoint_validation(self):
+        class Location(Document):
+            loc = MultiPointField()
+
+        invalid_coords = {"x": 1, "y": 2}
+        expected = 'MultiPointField can only accept a valid GeoJson dictionary or lists of (x, y)'
+        self._test_for_expected_error(Location, invalid_coords, expected)
+
+        invalid_coords = {"type": "MadeUp", "coordinates": [[]]}
+        expected = 'MultiPointField type must be "MultiPoint"'
+        self._test_for_expected_error(Location, invalid_coords, expected)
+
+        invalid_coords = {"type": "MultiPoint", "coordinates": [[1, 2, 3]]}
+        expected = "Value ([1, 2, 3]) must be a two-dimensional point"
+        self._test_for_expected_error(Location, invalid_coords, expected)
+
+        invalid_coords = [[]]
+        expected = "Invalid MultiPoint must contain at least one valid point"
+        self._test_for_expected_error(Location, invalid_coords, expected)
+
+        invalid_coords = [[[1]], [[1, 2, 3]]]
+        for coord in invalid_coords:
+            expected = "Value (%s) must be a two-dimensional point" % repr(coord[0])
+            self._test_for_expected_error(Location, coord, expected)
+
+        invalid_coords = [[[{}, {}]], [("a", "b")]]
+        for coord in invalid_coords:
+            expected = "Both values (%s) in point must be float or int" % repr(coord[0])
+            self._test_for_expected_error(Location, coord, expected)
+
+        Location(loc=[[1, 2]]).validate()
+        Location(loc={
+            "type": "MultiPoint",
+            "coordinates": [
+                [1, 2],
+                [81.4471435546875, 23.61432859499169]
+            ]}).validate()
+
+    def test_multilinestring_validation(self):
+        class Location(Document):
+            loc = MultiLineStringField()
+
+        invalid_coords = {"x": 1, "y": 2}
+        expected = 'MultiLineStringField can only accept a valid GeoJson dictionary or lists of (x, y)'
+        self._test_for_expected_error(Location, invalid_coords, expected)
+
+        invalid_coords = {"type": "MadeUp", "coordinates": [[]]}
+        expected = 'MultiLineStringField type must be "MultiLineString"'
+        self._test_for_expected_error(Location, invalid_coords, expected)
+
+        invalid_coords = {"type": "MultiLineString", "coordinates": [[[1, 2, 3]]]}
+        expected = "Invalid MultiLineString:\nValue ([1, 2, 3]) must be a two-dimensional point"
+        self._test_for_expected_error(Location, invalid_coords, expected)
+
+        invalid_coords = [5, "a"]
+        expected = "Invalid MultiLineString must contain at least one valid linestring"
+        self._test_for_expected_error(Location, invalid_coords, expected)
+
+        invalid_coords = [[[1]]]
+        expected = "Invalid MultiLineString:\nValue (%s) must be a two-dimensional point" % repr(invalid_coords[0][0])
+        self._test_for_expected_error(Location, invalid_coords, expected)
+
+        invalid_coords = [[[1, 2, 3]]]
+        expected = "Invalid MultiLineString:\nValue (%s) must be a two-dimensional point" % repr(invalid_coords[0][0])
+        self._test_for_expected_error(Location, invalid_coords, expected)
+
+        invalid_coords = [[[[{}, {}]]], [[("a", "b")]]]
+        for coord in invalid_coords:
+            expected = "Invalid MultiLineString:\nBoth values (%s) in point must be float or int" % repr(coord[0][0])
+            self._test_for_expected_error(Location, coord, expected)
+
+        Location(loc=[[[1, 2], [3, 4], [5, 6], [1, 2]]]).validate()
+
+    def test_multipolygon_validation(self):
+        class Location(Document):
+            loc = MultiPolygonField()
+
+        invalid_coords = {"x": 1, "y": 2}
+        expected = 'MultiPolygonField can only accept a valid GeoJson dictionary or lists of (x, y)'
+        self._test_for_expected_error(Location, invalid_coords, expected)
+
+        invalid_coords = {"type": "MadeUp", "coordinates": [[]]}
+        expected = 'MultiPolygonField type must be "MultiPolygon"'
+        self._test_for_expected_error(Location, invalid_coords, expected)
+
+        invalid_coords = {"type": "MultiPolygon", "coordinates": [[[[1, 2, 3]]]]}
+        expected = "Invalid MultiPolygon:\nValue ([1, 2, 3]) must be a two-dimensional point"
+        self._test_for_expected_error(Location, invalid_coords, expected)
+
+        invalid_coords = [[[[5, "a"]]]]
+        expected = "Invalid MultiPolygon:\nBoth values ([5, 'a']) in point must be float or int"
+        self._test_for_expected_error(Location, invalid_coords, expected)
+
+        invalid_coords = [[[[]]]]
+        expected = "Invalid MultiPolygon must contain at least one valid Polygon"
+        self._test_for_expected_error(Location, invalid_coords, expected)
+
+        invalid_coords = [[[[1, 2, 3]]]]
+        expected = "Invalid MultiPolygon:\nValue ([1, 2, 3]) must be a two-dimensional point"
+        self._test_for_expected_error(Location, invalid_coords, expected)
+
+        invalid_coords = [[[[{}, {}]]], [[("a", "b")]]]
+        expected = "Invalid MultiPolygon:\nBoth values ([{}, {}]) in point must be float or int, Both values (('a', 'b')) in point must be float or int"
+        self._test_for_expected_error(Location, invalid_coords, expected)
+
+        invalid_coords = [[[[1, 2], [3, 4]]]]
+        expected = "Invalid MultiPolygon:\nLineStrings must start and end at the same point"
+        self._test_for_expected_error(Location, invalid_coords, expected)
+
+        Location(loc=[[[[1, 2], [3, 4], [5, 6], [1, 2]]]]).validate()
+
     def test_indexes_geopoint(self):
         """Ensure that indexes are created automatically for GeoPointFields.
         """
@@ -219,12 +336,11 @@ class GeoFieldTest(unittest.TestCase):
         Location.drop_collection()
         Parent.drop_collection()
 
-        list(Parent.objects)
-
-        collection = Parent._get_collection()
-        info = collection.index_information()
-
+        Parent(name='Berlin').save()
+        info = Parent._get_collection().index_information()
         self.assertFalse('location_2d' in info)
+        info = Location._get_collection().index_information()
+        self.assertTrue('location_2d' in info)
 
         self.assertEqual(len(Parent._geo_indices()), 0)
         self.assertEqual(len(Location._geo_indices()), 1)

tests/fixtures.py

@@ -17,6 +17,23 @@ class PickleTest(Document):
     photo = FileField()
 
 
+class NewDocumentPickleTest(Document):
+    number = IntField()
+    string = StringField(choices=(('One', '1'), ('Two', '2')))
+    embedded = EmbeddedDocumentField(PickleEmbedded)
+    lists = ListField(StringField())
+    photo = FileField()
+    new_field = StringField()
+
+
+class PickleDyanmicEmbedded(DynamicEmbeddedDocument):
+    date = DateTimeField(default=datetime.now)
+
+
+class PickleDynamicTest(DynamicDocument):
+    number = IntField()
+
+
 class PickleSignalsTest(Document):
     number = IntField()
     string = StringField(choices=(('One', '1'), ('Two', '2')))

tests/queryset/__init__.py

@@ -3,3 +3,4 @@ from field_list import *
 from queryset import *
 from visitor import *
 from geo import *
+from modify import *

tests/queryset/field_list.py

@@ -162,6 +162,10 @@ class OnlyExcludeAllTest(unittest.TestCase):
         self.assertEqual(obj.name, person.name)
         self.assertEqual(obj.age, person.age)
 
+        obj = self.Person.objects.only(*('id', 'name',)).get()
+        self.assertEqual(obj.name, person.name)
+        self.assertEqual(obj.age, None)
+
         # Check polymorphism still works
         class Employee(self.Person):
             salary = IntField(db_field='wage')
@@ -395,5 +399,28 @@ class OnlyExcludeAllTest(unittest.TestCase):
         numbers = Numbers.objects.fields(embedded__n={"$slice": [-5, 10]}).get()
         self.assertEqual(numbers.embedded.n, [-5, -4, -3, -2, -1])
 
+
+    def test_exclude_from_subclasses_docs(self):
+
+        class Base(Document):
+            username = StringField()
+
+            meta = {'allow_inheritance': True}
+
+        class Anon(Base):
+            anon = BooleanField()
+
+        class User(Base):
+            password = StringField()
+            wibble = StringField()
+
+        Base.drop_collection()
+        User(username="mongodb", password="secret").save()
+
+        user = Base.objects().exclude("password", "wibble").first()
+        self.assertEqual(user.password, None)
+
+        self.assertRaises(LookUpError, Base.objects.exclude, "made_up")
+
 if __name__ == '__main__':
     unittest.main()

tests/queryset/geo.py

@@ -1,9 +1,15 @@
 import sys
+
 sys.path[0:0] = [""]
 
 import unittest
 from datetime import datetime, timedelta
+
+from pymongo.errors import OperationFailure
 from mongoengine import *
+from mongoengine.connection import get_connection
+from nose.plugins.skip import SkipTest
+
 
 __all__ = ("GeoQueriesTest",)
 
@@ -64,6 +70,16 @@ class GeoQueriesTest(unittest.TestCase):
         self.assertEqual(events.count(), 1)
         self.assertEqual(events[0], event2)
 
+        # find events at least 10 degrees away of san francisco
+        point = [-122.415579, 37.7566023]
+        events = Event.objects(location__near=point, location__min_distance=10)
+        # The following real test passes on MongoDB 3 but minDistance seems
+        # buggy on older MongoDB versions
+        if get_connection().server_info()['versionArray'][0] > 2:
+            self.assertEqual(events.count(), 2)
+        else:
+            self.assertTrue(events.count() >= 2)
+
         # find events within 10 degrees of san francisco
         point_and_distance = [[-122.415579, 37.7566023], 10]
         events = Event.objects(location__within_distance=point_and_distance)
@@ -139,6 +155,13 @@ class GeoQueriesTest(unittest.TestCase):
     def test_spherical_geospatial_operators(self):
         """Ensure that spherical geospatial queries are working
         """
+        # Needs MongoDB > 2.6.4 https://jira.mongodb.org/browse/SERVER-14039
+        connection = get_connection()
+        info = connection.test.command('buildInfo')
+        mongodb_version = tuple([int(i) for i in info['version'].split('.')])
+        if mongodb_version < (2, 6, 4):
+            raise SkipTest("Need MongoDB version 2.6.4+")
+
         class Point(Document):
             location = GeoPointField()
 
@@ -158,7 +181,7 @@ class GeoQueriesTest(unittest.TestCase):
 
         # Same behavior for _within_spherical_distance
         points = Point.objects(
-            location__within_spherical_distance=[[-122, 37.5], 60/earth_radius]
+            location__within_spherical_distance=[[-122, 37.5], 60 / earth_radius]
         )
         self.assertEqual(points.count(), 2)
 
@@ -166,6 +189,24 @@ class GeoQueriesTest(unittest.TestCase):
                                location__max_distance=60 / earth_radius)
         self.assertEqual(points.count(), 2)
 
+        # Test query works with max_distance, being farer from one point
+        points = Point.objects(location__near_sphere=[-122, 37.8],
+                               location__max_distance=60 / earth_radius)
+        close_point = points.first()
+        self.assertEqual(points.count(), 1)
+
+        # Test query works with min_distance, being farer from one point
+        points = Point.objects(location__near_sphere=[-122, 37.8],
+                               location__min_distance=60 / earth_radius)
+        # The following real test passes on MongoDB 3 but minDistance seems
+        # buggy on older MongoDB versions
+        if get_connection().server_info()['versionArray'][0] > 2:
+            self.assertEqual(points.count(), 1)
+            far_point = points.first()
+            self.assertNotEqual(close_point, far_point)
+        else:
+            self.assertTrue(points.count() >= 1)
+
         # Finds both points, but orders the north point first because it's
         # closer to the reference point to the north.
         points = Point.objects(location__near_sphere=[-122, 38.5])
@@ -248,6 +289,20 @@ class GeoQueriesTest(unittest.TestCase):
         self.assertEqual(events.count(), 2)
         self.assertEqual(events[0], event3)
 
+        # ensure min_distance and max_distance combine well
+        events = Event.objects(location__near=[-87.67892, 41.9120459],
+                               location__min_distance=1000,
+                               location__max_distance=10000).order_by("-date")
+        self.assertEqual(events.count(), 1)
+        self.assertEqual(events[0], event3)
+
+        # ensure ordering is respected by "near"
+        events = Event.objects(location__near=[-87.67892, 41.9120459],
+                               # location__min_distance=10000
+                               location__min_distance=10000).order_by("-date")
+        self.assertEqual(events.count(), 1)
+        self.assertEqual(events[0], event2)
+
         # check that within_box works
         box = [(-125.0, 35.0), (-100.0, 40.0)]
         events = Event.objects(location__geo_within_box=box)
@@ -414,5 +469,47 @@ class GeoQueriesTest(unittest.TestCase):
         roads = Road.objects.filter(poly__geo_intersects={"$geometry": polygon}).count()
         self.assertEqual(1, roads)
 
+    def test_2dsphere_point_sets_correctly(self):
+        class Location(Document):
+            loc = PointField()
+
+        Location.drop_collection()
+
+        Location(loc=[1,2]).save()
+        loc = Location.objects.as_pymongo()[0]
+        self.assertEqual(loc["loc"], {"type": "Point", "coordinates": [1, 2]})
+
+        Location.objects.update(set__loc=[2,1])
+        loc = Location.objects.as_pymongo()[0]
+        self.assertEqual(loc["loc"], {"type": "Point", "coordinates": [2, 1]})
+
+    def test_2dsphere_linestring_sets_correctly(self):
+        class Location(Document):
+            line = LineStringField()
+
+        Location.drop_collection()
+
+        Location(line=[[1, 2], [2, 2]]).save()
+        loc = Location.objects.as_pymongo()[0]
+        self.assertEqual(loc["line"], {"type": "LineString", "coordinates": [[1, 2], [2, 2]]})
+
+        Location.objects.update(set__line=[[2, 1], [1, 2]])
+        loc = Location.objects.as_pymongo()[0]
+        self.assertEqual(loc["line"], {"type": "LineString", "coordinates": [[2, 1], [1, 2]]})
+
+    def test_geojson_PolygonField(self):
+        class Location(Document):
+            poly = PolygonField()
+
+        Location.drop_collection()
+
+        Location(poly=[[[40, 5], [40, 6], [41, 6], [40, 5]]]).save()
+        loc = Location.objects.as_pymongo()[0]
+        self.assertEqual(loc["poly"], {"type": "Polygon", "coordinates": [[[40, 5], [40, 6], [41, 6], [40, 5]]]})
+
+        Location.objects.update(set__poly=[[[40, 4], [40, 6], [41, 6], [40, 4]]])
+        loc = Location.objects.as_pymongo()[0]
+        self.assertEqual(loc["poly"], {"type": "Polygon", "coordinates": [[[40, 4], [40, 6], [41, 6], [40, 4]]]})
+
 if __name__ == '__main__':
     unittest.main()

tests/queryset/modify.py

@@ -0,0 +1,102 @@
+import sys
+sys.path[0:0] = [""]
+
+import unittest
+
+from mongoengine import connect, Document, IntField
+
+__all__ = ("FindAndModifyTest",)
+
+
+class Doc(Document):
+    id = IntField(primary_key=True)
+    value = IntField()
+
+
+class FindAndModifyTest(unittest.TestCase):
+
+    def setUp(self):
+        connect(db="mongoenginetest")
+        Doc.drop_collection()
+
+    def assertDbEqual(self, docs):
+        self.assertEqual(list(Doc._collection.find().sort("id")), docs)
+
+    def test_modify(self):
+        Doc(id=0, value=0).save()
+        doc = Doc(id=1, value=1).save()
+
+        old_doc = Doc.objects(id=1).modify(set__value=-1)
+        self.assertEqual(old_doc.to_json(), doc.to_json())
+        self.assertDbEqual([{"_id": 0, "value": 0}, {"_id": 1, "value": -1}])
+
+    def test_modify_with_new(self):
+        Doc(id=0, value=0).save()
+        doc = Doc(id=1, value=1).save()
+
+        new_doc = Doc.objects(id=1).modify(set__value=-1, new=True)
+        doc.value = -1
+        self.assertEqual(new_doc.to_json(), doc.to_json())
+        self.assertDbEqual([{"_id": 0, "value": 0}, {"_id": 1, "value": -1}])
+
+    def test_modify_not_existing(self):
+        Doc(id=0, value=0).save()
+        self.assertEqual(Doc.objects(id=1).modify(set__value=-1), None)
+        self.assertDbEqual([{"_id": 0, "value": 0}])
+
+    def test_modify_with_upsert(self):
+        Doc(id=0, value=0).save()
+        old_doc = Doc.objects(id=1).modify(set__value=1, upsert=True)
+        self.assertEqual(old_doc, None)
+        self.assertDbEqual([{"_id": 0, "value": 0}, {"_id": 1, "value": 1}])
+
+    def test_modify_with_upsert_existing(self):
+        Doc(id=0, value=0).save()
+        doc = Doc(id=1, value=1).save()
+
+        old_doc = Doc.objects(id=1).modify(set__value=-1, upsert=True)
+        self.assertEqual(old_doc.to_json(), doc.to_json())
+        self.assertDbEqual([{"_id": 0, "value": 0}, {"_id": 1, "value": -1}])
+
+    def test_modify_with_upsert_with_new(self):
+        Doc(id=0, value=0).save()
+        new_doc = Doc.objects(id=1).modify(upsert=True, new=True, set__value=1)
+        self.assertEqual(new_doc.to_mongo(), {"_id": 1, "value": 1})
+        self.assertDbEqual([{"_id": 0, "value": 0}, {"_id": 1, "value": 1}])
+
+    def test_modify_with_remove(self):
+        Doc(id=0, value=0).save()
+        doc = Doc(id=1, value=1).save()
+
+        old_doc = Doc.objects(id=1).modify(remove=True)
+        self.assertEqual(old_doc.to_json(), doc.to_json())
+        self.assertDbEqual([{"_id": 0, "value": 0}])
+
+    def test_find_and_modify_with_remove_not_existing(self):
+        Doc(id=0, value=0).save()
+        self.assertEqual(Doc.objects(id=1).modify(remove=True), None)
+        self.assertDbEqual([{"_id": 0, "value": 0}])
+
+    def test_modify_with_order_by(self):
+        Doc(id=0, value=3).save()
+        Doc(id=1, value=2).save()
+        Doc(id=2, value=1).save()
+        doc = Doc(id=3, value=0).save()
+
+        old_doc = Doc.objects().order_by("-id").modify(set__value=-1)
+        self.assertEqual(old_doc.to_json(), doc.to_json())
+        self.assertDbEqual([
+            {"_id": 0, "value": 3}, {"_id": 1, "value": 2},
+            {"_id": 2, "value": 1}, {"_id": 3, "value": -1}])
+
+    def test_modify_with_fields(self):
+        Doc(id=0, value=0).save()
+        Doc(id=1, value=1).save()
+
+        old_doc = Doc.objects(id=1).only("id").modify(set__value=-1)
+        self.assertEqual(old_doc.to_mongo(), {"_id": 1})
+        self.assertDbEqual([{"_id": 0, "value": 0}, {"_id": 1, "value": -1}])
+
+
+if __name__ == '__main__':
+    unittest.main()

tests/queryset/transform.py

@@ -31,6 +31,31 @@ class TransformTest(unittest.TestCase):
         self.assertEqual(transform.query(name__exists=True),
                          {'name': {'$exists': True}})
 
+    def test_transform_update(self):
+        class DicDoc(Document):
+            dictField = DictField()
+
+        class Doc(Document):
+            pass
+
+        DicDoc.drop_collection()
+        Doc.drop_collection()
+
+        doc = Doc().save()
+        dic_doc = DicDoc().save()
+
+        for k, v in (("set", "$set"), ("set_on_insert", "$setOnInsert"), ("push", "$push")):
+            update = transform.update(DicDoc, **{"%s__dictField__test" % k: doc})
+            self.assertTrue(isinstance(update[v]["dictField.test"], dict))
+
+        # Update special cases
+        update = transform.update(DicDoc, unset__dictField__test=doc)
+        self.assertEqual(update["$unset"]["dictField.test"], 1)
+
+        update = transform.update(DicDoc, pull__dictField__test=doc)
+        self.assertTrue(isinstance(update["$pull"]["dictField"]["test"], dict))
+
+
     def test_query_field_name(self):
         """Ensure that the correct field name is used when querying.
         """
@@ -142,6 +167,72 @@ class TransformTest(unittest.TestCase):
                              {'attachments.views.extracted': 'no'}]}
         self.assertEqual(expected, raw_query)
 
+    def test_geojson_PointField(self):
+        class Location(Document):
+            loc = PointField()
+
+        update = transform.update(Location, set__loc=[1, 2])
+        self.assertEqual(update, {'$set': {'loc': {"type": "Point", "coordinates": [1,2]}}})
+
+        update = transform.update(Location, set__loc={"type": "Point", "coordinates": [1,2]})
+        self.assertEqual(update, {'$set': {'loc': {"type": "Point", "coordinates": [1,2]}}})
+
+    def test_geojson_LineStringField(self):
+        class Location(Document):
+            line = LineStringField()
+
+        update = transform.update(Location, set__line=[[1, 2], [2, 2]])
+        self.assertEqual(update, {'$set': {'line': {"type": "LineString", "coordinates": [[1, 2], [2, 2]]}}})
+
+        update = transform.update(Location, set__line={"type": "LineString", "coordinates": [[1, 2], [2, 2]]})
+        self.assertEqual(update, {'$set': {'line': {"type": "LineString", "coordinates": [[1, 2], [2, 2]]}}})
+
+    def test_geojson_PolygonField(self):
+        class Location(Document):
+            poly = PolygonField()
+
+        update = transform.update(Location, set__poly=[[[40, 5], [40, 6], [41, 6], [40, 5]]])
+        self.assertEqual(update, {'$set': {'poly': {"type": "Polygon", "coordinates": [[[40, 5], [40, 6], [41, 6], [40, 5]]]}}})
+
+        update = transform.update(Location, set__poly={"type": "Polygon", "coordinates": [[[40, 5], [40, 6], [41, 6], [40, 5]]]})
+        self.assertEqual(update, {'$set': {'poly': {"type": "Polygon", "coordinates": [[[40, 5], [40, 6], [41, 6], [40, 5]]]}}})
+
+    def test_type(self):
+        class Doc(Document):
+            df = DynamicField()
+        Doc(df=True).save()
+        Doc(df=7).save()
+        Doc(df="df").save()
+        self.assertEqual(Doc.objects(df__type=1).count(), 0)  # double
+        self.assertEqual(Doc.objects(df__type=8).count(), 1)  # bool
+        self.assertEqual(Doc.objects(df__type=2).count(), 1)  # str
+        self.assertEqual(Doc.objects(df__type=16).count(), 1)  # int
+
+    def test_last_field_name_like_operator(self):
+        class EmbeddedItem(EmbeddedDocument):
+            type = StringField()
+            name = StringField()
+
+        class Doc(Document):
+            item = EmbeddedDocumentField(EmbeddedItem)
+
+        Doc.drop_collection()
+
+        doc = Doc(item=EmbeddedItem(type="axe", name="Heroic axe"))
+        doc.save()
+
+        self.assertEqual(1, Doc.objects(item__type__="axe").count())
+        self.assertEqual(1, Doc.objects(item__name__="Heroic axe").count())
+
+    def test_understandable_error_raised(self):
+        class Event(Document):
+            title = StringField()
+            location = GeoPointField()
+
+        box = [(35.0, -125.0), (40.0, -100.0)]
+        # I *meant* to execute location__within_box=box
+        events = Event.objects(location__within=box)
+        self.assertRaises(InvalidQueryError, lambda: events.count())
 
 if __name__ == '__main__':
     unittest.main()

tests/queryset/visitor.py

@@ -68,11 +68,11 @@ class QTest(unittest.TestCase):
             x = IntField()
             y = StringField()
 
-        # Check than an error is raised when conflicting queries are anded
-        def invalid_combination():
-            query = Q(x__lt=7) & Q(x__lt=3)
-            query.to_query(TestDoc)
-        self.assertRaises(InvalidQueryError, invalid_combination)
+        query = (Q(x__lt=7) & Q(x__lt=3)).to_query(TestDoc)
+        self.assertEqual(query, {'$and': [{'x': {'$lt': 7}}, {'x': {'$lt': 3}}]})
+
+        query = (Q(y="a") & Q(x__lt=7) & Q(x__lt=3)).to_query(TestDoc)
+        self.assertEqual(query, {'$and': [{'y': "a"}, {'x': {'$lt': 7}}, {'x': {'$lt': 3}}]})
 
         # Check normal cases work without an error
         query = Q(x__lt=7) & Q(x__gt=3)
@@ -325,10 +325,26 @@ class QTest(unittest.TestCase):
         pk = ObjectId()
         User(email='example@example.com', pk=pk).save()
 
-        self.assertEqual(1, User.objects.filter(
-                                Q(email='example@example.com') |
-                                Q(name='John Doe')
-                                ).limit(2).filter(pk=pk).count())
+        self.assertEqual(1, User.objects.filter(Q(email='example@example.com') |
+                                                Q(name='John Doe')).limit(2).filter(pk=pk).count())
+
+    def test_chained_q_or_filtering(self):
+
+        class Post(EmbeddedDocument):
+            name = StringField(required=True)
+
+        class Item(Document):
+            postables = ListField(EmbeddedDocumentField(Post))
+
+        Item.drop_collection()
+
+        Item(postables=[Post(name="a"), Post(name="b")]).save()
+        Item(postables=[Post(name="a"), Post(name="c")]).save()
+        Item(postables=[Post(name="a"), Post(name="b"), Post(name="c")]).save()
+
+        self.assertEqual(Item.objects(Q(postables__name="a") & Q(postables__name="b")).count(), 2)
+        self.assertEqual(Item.objects.filter(postables__name="a").filter(postables__name="b").count(), 2)
+
 
 if __name__ == '__main__':
     unittest.main()

tests/test_connection.py

@@ -1,16 +1,33 @@
 import sys
-sys.path[0:0] = [""]
-import unittest
 import datetime
+from pymongo.errors import OperationFailure
+
+sys.path[0:0] = [""]
+
+try:
+    import unittest2 as unittest
+except ImportError:
+    import unittest
 
 import pymongo
 from bson.tz_util import utc
 
-from mongoengine import *
+from mongoengine import (
+    connect, register_connection,
+    Document, DateTimeField
+)
+from mongoengine.python_support import IS_PYMONGO_3
 import mongoengine.connection
 from mongoengine.connection import get_db, get_connection, ConnectionError
 
 
+def get_tz_awareness(connection):
+    if not IS_PYMONGO_3:
+        return connection.tz_aware
+    else:
+        return connection.codec_options.tz_aware
+
+
 class ConnectionTest(unittest.TestCase):
 
     def tearDown(self):
@@ -34,6 +51,31 @@ class ConnectionTest(unittest.TestCase):
         conn = get_connection('testdb')
         self.assertTrue(isinstance(conn, pymongo.mongo_client.MongoClient))
 
+    def test_disconnect(self):
+        """Ensure that the disconnect() method works properly
+        """
+        conn1 = connect('mongoenginetest')
+        mongoengine.connection.disconnect()
+        conn2 = connect('mongoenginetest')
+        self.assertTrue(conn1 is not conn2)
+
+    def test_sharing_connections(self):
+        """Ensure that connections are shared when the connection settings are exactly the same
+        """
+        connect('mongoenginetests', alias='testdb1')
+        expected_connection = get_connection('testdb1')
+
+        connect('mongoenginetests', alias='testdb2')
+        actual_connection = get_connection('testdb2')
+
+        # Handle PyMongo 3+ Async Connection
+        if IS_PYMONGO_3:
+            # Ensure we are connected, throws ServerSelectionTimeoutError otherwise.
+            # Purposely not catching exception to fail test if thrown.
+            expected_connection.server_info()
+
+        self.assertEqual(expected_connection, actual_connection)
+
     def test_connect_uri(self):
         """Ensure that the connect() method works properly with uri's
         """
@@ -45,7 +87,8 @@ class ConnectionTest(unittest.TestCase):
         c.admin.authenticate("admin", "password")
         c.mongoenginetest.add_user("username", "password")
 
-        self.assertRaises(ConnectionError, connect, "testdb_uri_bad", host='mongodb://test:password@localhost')
+        if not IS_PYMONGO_3:
+            self.assertRaises(ConnectionError, connect, "testdb_uri_bad", host='mongodb://test:password@localhost')
 
         connect("testdb_uri", host='mongodb://username:password@localhost/mongoenginetest')
 
@@ -56,6 +99,71 @@ class ConnectionTest(unittest.TestCase):
         self.assertTrue(isinstance(db, pymongo.database.Database))
         self.assertEqual(db.name, 'mongoenginetest')
 
+        c.admin.system.users.remove({})
+        c.mongoenginetest.system.users.remove({})
+
+    def test_connect_uri_without_db(self):
+        """Ensure connect() method works properly with uri's without database_name
+        """
+        c = connect(db='mongoenginetest', alias='admin')
+        c.admin.system.users.remove({})
+        c.mongoenginetest.system.users.remove({})
+
+        c.admin.add_user("admin", "password")
+        c.admin.authenticate("admin", "password")
+        c.mongoenginetest.add_user("username", "password")
+
+        if not IS_PYMONGO_3:
+            self.assertRaises(ConnectionError, connect, "testdb_uri_bad", host='mongodb://test:password@localhost')
+
+        connect("mongoenginetest", host='mongodb://localhost/')
+
+        conn = get_connection()
+        self.assertTrue(isinstance(conn, pymongo.mongo_client.MongoClient))
+
+        db = get_db()
+        self.assertTrue(isinstance(db, pymongo.database.Database))
+        self.assertEqual(db.name, 'mongoenginetest')
+
+        c.admin.system.users.remove({})
+        c.mongoenginetest.system.users.remove({})
+
+    def test_connect_uri_with_authsource(self):
+        """Ensure that the connect() method works well with
+        the option `authSource` in URI.
+        This feature was introduced in MongoDB 2.4 and removed in 2.6
+        """
+        # Create users
+        c = connect('mongoenginetest')
+        c.admin.system.users.remove({})
+        c.admin.add_user('username2', 'password')
+
+        # Authentication fails without "authSource"
+        if IS_PYMONGO_3:
+            test_conn = connect('mongoenginetest', alias='test1',
+                                host='mongodb://username2:password@localhost/mongoenginetest')
+            self.assertRaises(OperationFailure, test_conn.server_info)
+        else:
+            self.assertRaises(
+                ConnectionError, connect, 'mongoenginetest', alias='test1',
+                host='mongodb://username2:password@localhost/mongoenginetest'
+            )
+            self.assertRaises(ConnectionError, get_db, 'test1')
+
+        # Authentication succeeds with "authSource"
+        test_conn2 = connect(
+            'mongoenginetest', alias='test2',
+            host=('mongodb://username2:password@localhost/'
+                  'mongoenginetest?authSource=admin')
+        )
+        # This will fail starting from MongoDB 2.6+
+        db = get_db('test2')
+        self.assertTrue(isinstance(db, pymongo.database.Database))
+        self.assertEqual(db.name, 'mongoenginetest')
+
+        # Clear all users
+        c.admin.system.users.remove({})
+
     def test_register_connection(self):
         """Ensure that connections with different aliases may be registered.
         """
@@ -69,17 +177,25 @@ class ConnectionTest(unittest.TestCase):
         self.assertTrue(isinstance(db, pymongo.database.Database))
         self.assertEqual(db.name, 'mongoenginetest2')
 
+    def test_register_connection_defaults(self):
+        """Ensure that defaults are used when the host and port are None.
+        """
+        register_connection('testdb', 'mongoenginetest', host=None, port=None)
+
+        conn = get_connection('testdb')
+        self.assertTrue(isinstance(conn, pymongo.mongo_client.MongoClient))
+
     def test_connection_kwargs(self):
         """Ensure that connection kwargs get passed to pymongo.
         """
         connect('mongoenginetest', alias='t1', tz_aware=True)
         conn = get_connection('t1')
 
-        self.assertTrue(conn.tz_aware)
+        self.assertTrue(get_tz_awareness(conn))
 
         connect('mongoenginetest2', alias='t2')
         conn = get_connection('t2')
-        self.assertFalse(conn.tz_aware)
+        self.assertFalse(get_tz_awareness(conn))
 
     def test_datetime(self):
         connect('mongoenginetest', tz_aware=True)
@@ -94,6 +210,27 @@ class ConnectionTest(unittest.TestCase):
         date_doc = DateDoc.objects.first()
         self.assertEqual(d, date_doc.the_date)
 
+    def test_multiple_connection_settings(self):
+        connect('mongoenginetest', alias='t1', host="localhost")
+
+        connect('mongoenginetest2', alias='t2', host="127.0.0.1")
+
+        mongo_connections = mongoengine.connection._connections
+        self.assertEqual(len(mongo_connections.items()), 2)
+        self.assertTrue('t1' in mongo_connections.keys())
+        self.assertTrue('t2' in mongo_connections.keys())
+        if not IS_PYMONGO_3:
+            self.assertEqual(mongo_connections['t1'].host, 'localhost')
+            self.assertEqual(mongo_connections['t2'].host, '127.0.0.1')
+        else:
+            # Handle PyMongo 3+ Async Connection
+            # Ensure we are connected, throws ServerSelectionTimeoutError otherwise.
+            # Purposely not catching exception to fail test if thrown.
+            mongo_connections['t1'].server_info()
+            mongo_connections['t2'].server_info()
+            self.assertEqual(mongo_connections['t1'].address[0], 'localhost')
+            self.assertEqual(mongo_connections['t2'].address[0], '127.0.0.1')
+
 
 if __name__ == '__main__':
     unittest.main()

tests/test_datastructures.py

@@ -0,0 +1,111 @@
+import unittest
+from mongoengine.base.datastructures import StrictDict, SemiStrictDict 
+
+
+class TestStrictDict(unittest.TestCase):
+    def strict_dict_class(self, *args, **kwargs):
+        return StrictDict.create(*args, **kwargs)
+
+    def setUp(self):
+        self.dtype = self.strict_dict_class(("a", "b", "c"))
+
+    def test_init(self):
+        d = self.dtype(a=1, b=1, c=1)
+        self.assertEqual((d.a, d.b, d.c), (1, 1, 1))
+
+    def test_init_fails_on_nonexisting_attrs(self):
+        self.assertRaises(AttributeError, lambda: self.dtype(a=1, b=2, d=3))
+        
+    def test_eq(self):
+        d = self.dtype(a=1, b=1, c=1)
+        dd = self.dtype(a=1, b=1, c=1)
+        e = self.dtype(a=1, b=1, c=3)
+        f = self.dtype(a=1, b=1)
+        g = self.strict_dict_class(("a", "b", "c", "d"))(a=1, b=1, c=1, d=1)
+        h = self.strict_dict_class(("a", "c", "b"))(a=1, b=1, c=1)
+        i = self.strict_dict_class(("a", "c", "b"))(a=1, b=1, c=2)
+        
+        self.assertEqual(d, dd)
+        self.assertNotEqual(d, e)
+        self.assertNotEqual(d, f)
+        self.assertNotEqual(d, g)
+        self.assertNotEqual(f, d)
+        self.assertEqual(d, h)
+        self.assertNotEqual(d, i)
+
+    def test_setattr_getattr(self):
+        d = self.dtype()
+        d.a = 1
+        self.assertEqual(d.a, 1)
+        self.assertRaises(AttributeError, lambda: d.b)
+    
+    def test_setattr_raises_on_nonexisting_attr(self):
+        d = self.dtype()
+
+        def _f():
+            d.x = 1
+        self.assertRaises(AttributeError, _f)
+    
+    def test_setattr_getattr_special(self):
+        d = self.strict_dict_class(["items"])
+        d.items = 1
+        self.assertEqual(d.items, 1)
+    
+    def test_get(self):
+        d = self.dtype(a=1)
+        self.assertEqual(d.get('a'), 1)
+        self.assertEqual(d.get('b', 'bla'), 'bla')
+
+    def test_items(self):
+        d = self.dtype(a=1)
+        self.assertEqual(d.items(), [('a', 1)])
+        d = self.dtype(a=1, b=2)
+        self.assertEqual(d.items(), [('a', 1), ('b', 2)])
+
+    def test_mappings_protocol(self):
+        d = self.dtype(a=1, b=2)
+        assert dict(d) == {'a': 1, 'b': 2}
+        assert dict(**d) == {'a': 1, 'b': 2}
+
+
+class TestSemiSrictDict(TestStrictDict):
+    def strict_dict_class(self, *args, **kwargs):
+        return SemiStrictDict.create(*args, **kwargs)
+
+    def test_init_fails_on_nonexisting_attrs(self):
+        # disable irrelevant test
+        pass
+
+    def test_setattr_raises_on_nonexisting_attr(self):
+        # disable irrelevant test
+        pass
+
+    def test_setattr_getattr_nonexisting_attr_succeeds(self):
+        d = self.dtype()
+        d.x = 1
+        self.assertEqual(d.x, 1)
+
+    def test_init_succeeds_with_nonexisting_attrs(self):
+        d = self.dtype(a=1, b=1, c=1, x=2)
+        self.assertEqual((d.a, d.b, d.c, d.x), (1, 1, 1, 2))
+   
+    def test_iter_with_nonexisting_attrs(self):
+        d = self.dtype(a=1, b=1, c=1, x=2)
+        self.assertEqual(list(d), ['a', 'b', 'c', 'x'])
+
+    def test_iteritems_with_nonexisting_attrs(self):
+        d = self.dtype(a=1, b=1, c=1, x=2)
+        self.assertEqual(list(d.iteritems()), [('a', 1), ('b', 1), ('c', 1), ('x', 2)])
+
+    def tets_cmp_with_strict_dicts(self):
+        d = self.dtype(a=1, b=1, c=1)
+        dd = StrictDict.create(("a", "b", "c"))(a=1, b=1, c=1)
+        self.assertEqual(d, dd)
+
+    def test_cmp_with_strict_dict_with_nonexisting_attrs(self):
+        d = self.dtype(a=1, b=1, c=1, x=2)
+        dd = StrictDict.create(("a", "b", "c", "x"))(a=1, b=1, c=1, x=2)
+        self.assertEqual(d, dd)
+
+if __name__ == '__main__':
+    unittest.main()

tests/test_dereference.py

@@ -291,9 +291,37 @@ class FieldTest(unittest.TestCase):
                 self.assertEqual(employee.friends, friends)
                 self.assertEqual(q, 2)
 
+    def test_list_of_lists_of_references(self):
+
+        class User(Document):
+            name = StringField()
+
+        class Post(Document):
+            user_lists = ListField(ListField(ReferenceField(User)))
+
+        class SimpleList(Document):
+            users = ListField(ReferenceField(User))
+
+        User.drop_collection()
+        Post.drop_collection()
+
+        u1 = User.objects.create(name='u1')
+        u2 = User.objects.create(name='u2')
+        u3 = User.objects.create(name='u3')
+
+        SimpleList.objects.create(users=[u1, u2, u3])
+        self.assertEqual(SimpleList.objects.all()[0].users, [u1, u2, u3])
+
+        Post.objects.create(user_lists=[[u1, u2], [u3]])
+        self.assertEqual(Post.objects.all()[0].user_lists, [[u1, u2], [u3]])
+
     def test_circular_reference(self):
         """Ensure you can handle circular references
         """
+        class Relation(EmbeddedDocument):
+            name = StringField()
+            person = ReferenceField('Person')
+
         class Person(Document):
             name = StringField()
             relations = ListField(EmbeddedDocumentField('Relation'))
@@ -301,10 +329,6 @@ class FieldTest(unittest.TestCase):
             def __repr__(self):
                 return "<Person: %s>" % self.name
 
-        class Relation(EmbeddedDocument):
-            name = StringField()
-            person = ReferenceField('Person')
-
         Person.drop_collection()
         mother = Person(name="Mother")
         daughter = Person(name="Daughter")
@@ -923,6 +947,8 @@ class FieldTest(unittest.TestCase):
 
         class Asset(Document):
             name = StringField(max_length=250, required=True)
+            path = StringField()
+            title = StringField()
             parent = GenericReferenceField(default=None)
             parents = ListField(GenericReferenceField())
             children = ListField(GenericReferenceField())
@@ -1000,6 +1026,43 @@ class FieldTest(unittest.TestCase):
         self.assertEqual(type(foo.bar), Bar)
         self.assertEqual(type(foo.baz), Baz)
 
+
+    def test_document_reload_reference_integrity(self):
+        """
+        Ensure reloading a document with multiple similar id
+        in different collections doesn't mix them.
+        """
+        class Topic(Document):
+            id = IntField(primary_key=True)
+        class User(Document):
+            id = IntField(primary_key=True)
+            name = StringField()
+        class Message(Document):
+            id = IntField(primary_key=True)
+            topic = ReferenceField(Topic)
+            author = ReferenceField(User)
+
+        Topic.drop_collection()
+        User.drop_collection()
+        Message.drop_collection()
+
+        # All objects share the same id, but each in a different collection
+        topic = Topic(id=1).save()
+        user = User(id=1, name='user-name').save()
+        Message(id=1, topic=topic, author=user).save()
+
+        concurrent_change_user = User.objects.get(id=1)
+        concurrent_change_user.name = 'new-name'
+        concurrent_change_user.save()
+        self.assertNotEqual(user.name, 'new-name')
+
+        msg = Message.objects.get(id=1)
+        msg.reload()
+        self.assertEqual(msg.topic, topic)
+        self.assertEqual(msg.author, user)
+        self.assertEqual(msg.author.name, 'new-name')
+
+
     def test_list_lookup_not_checked_in_map(self):
         """Ensure we dereference list data correctly
         """
@@ -1121,37 +1184,32 @@ class FieldTest(unittest.TestCase):
 
             self.assertEqual(q, 2)
 
-    def test_tuples_as_tuples(self):
-        """
-        Ensure that tuples remain tuples when they are
-        inside a ComplexBaseField
-        """
-        from mongoengine.base import BaseField
+    def test_objectid_reference_across_databases(self):
+        # mongoenginetest - Is default connection alias from setUp()
+        # Register Aliases
+        register_connection('testdb-1', 'mongoenginetest2')
 
-        class EnumField(BaseField):
+        class User(Document):
+            name = StringField()
+            meta = {"db_alias": "testdb-1"}
 
-            def __init__(self, **kwargs):
-                super(EnumField, self).__init__(**kwargs)
+        class Book(Document):
+            name = StringField()
+            author = ReferenceField(User)
 
-            def to_mongo(self, value):
-                return value
+        # Drops
+        User.drop_collection()
+        Book.drop_collection()
 
-            def to_python(self, value):
-                return tuple(value)
+        user = User(name="Ross").save()
+        Book(name="MongoEngine for pros", author=user).save()
 
-        class TestDoc(Document):
-            items = ListField(EnumField())
+        # Can't use query_counter across databases - so test the _data object
+        book = Book.objects.first()
+        self.assertFalse(isinstance(book._data['author'], User))
 
-        TestDoc.drop_collection()
-        tuples = [(100, 'Testing')]
-        doc = TestDoc()
-        doc.items = tuples
-        doc.save()
-        x = TestDoc.objects().get()
-        self.assertTrue(x is not None)
-        self.assertTrue(len(x.items) == 1)
-        self.assertTrue(tuple(x.items[0]) in tuples)
-        self.assertTrue(x.items[0] in tuples)
+        book.select_related()
+        self.assertTrue(isinstance(book._data['author'], User))
 
     def test_non_ascii_pk(self):
         """
@@ -1176,6 +1234,55 @@ class FieldTest(unittest.TestCase):
 
         self.assertEqual(2, len([brand for bg in brand_groups for brand in bg.brands]))
 
+    def test_dereferencing_embedded_listfield_referencefield(self):
+        class Tag(Document):
+            meta = {'collection': 'tags'}
+            name = StringField()
+
+        class Post(EmbeddedDocument):
+            body = StringField()
+            tags = ListField(ReferenceField("Tag", dbref=True))
+
+        class Page(Document):
+            meta = {'collection': 'pages'}
+            tags = ListField(ReferenceField("Tag", dbref=True))
+            posts = ListField(EmbeddedDocumentField(Post))
+
+        Tag.drop_collection()
+        Page.drop_collection()
+
+        tag = Tag(name='test').save()
+        post = Post(body='test body', tags=[tag])
+        Page(tags=[tag], posts=[post]).save()
+
+        page = Page.objects.first()
+        self.assertEqual(page.tags[0], page.posts[0].tags[0])
+
+    def test_select_related_follows_embedded_referencefields(self):
+
+        class Song(Document):
+            title = StringField()
+
+        class PlaylistItem(EmbeddedDocument):
+            song = ReferenceField("Song")
+
+        class Playlist(Document):
+            items = ListField(EmbeddedDocumentField("PlaylistItem"))
+
+        Playlist.drop_collection()
+        Song.drop_collection()
+
+        songs = [Song.objects.create(title="song %d" % i) for i in range(3)]
+        items = [PlaylistItem(song=song) for song in songs]
+        playlist = Playlist.objects.create(items=items)
+
+        with query_counter() as q:
+            self.assertEqual(q, 0)
+
+            playlist = Playlist.objects.first().select_related()
+            songs = [item.song for item in playlist.items]
+
+            self.assertEqual(q, 2)
+
 if __name__ == '__main__':
     unittest.main()
-

tests/test_django.py

@@ -1,301 +0,0 @@
-import sys
-sys.path[0:0] = [""]
-import unittest
-from nose.plugins.skip import SkipTest
-from mongoengine.python_support import PY3
-from mongoengine import *
-
-try:
-    from mongoengine.django.shortcuts import get_document_or_404
-
-    from django.http import Http404
-    from django.template import Context, Template
-    from django.conf import settings
-    from django.core.paginator import Paginator
-
-    settings.configure(
-        USE_TZ=True,
-        INSTALLED_APPS=('django.contrib.auth', 'mongoengine.django.mongo_auth'),
-        AUTH_USER_MODEL=('mongo_auth.MongoUser'),
-    )
-
-    try:
-        from django.contrib.auth import authenticate, get_user_model
-        from mongoengine.django.auth import User
-        from mongoengine.django.mongo_auth.models import MongoUser, MongoUserManager
-        DJ15 = True
-    except Exception:
-        DJ15 = False
-    from django.contrib.sessions.tests import SessionTestsMixin
-    from mongoengine.django.sessions import SessionStore, MongoSession
-except Exception, err:
-    if PY3:
-        SessionTestsMixin = type  # dummy value so no error
-        SessionStore = None  # dummy value so no error
-    else:
-        raise err
-
-
-from datetime import tzinfo, timedelta
-ZERO = timedelta(0)
-
-class FixedOffset(tzinfo):
-    """Fixed offset in minutes east from UTC."""
-
-    def __init__(self, offset, name):
-        self.__offset = timedelta(minutes = offset)
-        self.__name = name
-
-    def utcoffset(self, dt):
-        return self.__offset
-
-    def tzname(self, dt):
-        return self.__name
-
-    def dst(self, dt):
-        return ZERO
-
-
-def activate_timezone(tz):
-    """Activate Django timezone support if it is available.
-    """
-    try:
-        from django.utils import timezone
-        timezone.deactivate()
-        timezone.activate(tz)
-    except ImportError:
-        pass
-
-
-class QuerySetTest(unittest.TestCase):
-
-    def setUp(self):
-        if PY3:
-            raise SkipTest('django does not have Python 3 support')
-        connect(db='mongoenginetest')
-
-        class Person(Document):
-            name = StringField()
-            age = IntField()
-        self.Person = Person
-
-    def test_order_by_in_django_template(self):
-        """Ensure that QuerySets are properly ordered in Django template.
-        """
-        self.Person.drop_collection()
-
-        self.Person(name="A", age=20).save()
-        self.Person(name="D", age=10).save()
-        self.Person(name="B", age=40).save()
-        self.Person(name="C", age=30).save()
-
-        t = Template("{% for o in ol %}{{ o.name }}-{{ o.age }}:{% endfor %}")
-
-        d = {"ol": self.Person.objects.order_by('-name')}
-        self.assertEqual(t.render(Context(d)), u'D-10:C-30:B-40:A-20:')
-        d = {"ol": self.Person.objects.order_by('+name')}
-        self.assertEqual(t.render(Context(d)), u'A-20:B-40:C-30:D-10:')
-        d = {"ol": self.Person.objects.order_by('-age')}
-        self.assertEqual(t.render(Context(d)), u'B-40:C-30:A-20:D-10:')
-        d = {"ol": self.Person.objects.order_by('+age')}
-        self.assertEqual(t.render(Context(d)), u'D-10:A-20:C-30:B-40:')
-
-        self.Person.drop_collection()
-
-    def test_q_object_filter_in_template(self):
-
-        self.Person.drop_collection()
-
-        self.Person(name="A", age=20).save()
-        self.Person(name="D", age=10).save()
-        self.Person(name="B", age=40).save()
-        self.Person(name="C", age=30).save()
-
-        t = Template("{% for o in ol %}{{ o.name }}-{{ o.age }}:{% endfor %}")
-
-        d = {"ol": self.Person.objects.filter(Q(age=10) | Q(name="C"))}
-        self.assertEqual(t.render(Context(d)), 'D-10:C-30:')
-
-        # Check double rendering doesn't throw an error
-        self.assertEqual(t.render(Context(d)), 'D-10:C-30:')
-
-    def test_get_document_or_404(self):
-        p = self.Person(name="G404")
-        p.save()
-
-        self.assertRaises(Http404, get_document_or_404, self.Person, pk='1234')
-        self.assertEqual(p, get_document_or_404(self.Person, pk=p.pk))
-
-    def test_pagination(self):
-        """Ensure that Pagination works as expected
-        """
-        class Page(Document):
-            name = StringField()
-
-        Page.drop_collection()
-
-        for i in xrange(1, 11):
-            Page(name=str(i)).save()
-
-        paginator = Paginator(Page.objects.all(), 2)
-
-        t = Template("{% for i in page.object_list  %}{{ i.name }}:{% endfor %}")
-        for p in paginator.page_range:
-            d = {"page": paginator.page(p)}
-            end = p * 2
-            start = end - 1
-            self.assertEqual(t.render(Context(d)), u'%d:%d:' % (start, end))
-
-    def test_nested_queryset_template_iterator(self):
-        # Try iterating the same queryset twice, nested, in a Django template.
-        names = ['A', 'B', 'C', 'D']
-
-        class CustomUser(Document):
-            name = StringField()
-
-            def __unicode__(self):
-                return self.name
-
-        CustomUser.drop_collection()
-
-        for name in names:
-            CustomUser(name=name).save()
-
-        users = CustomUser.objects.all().order_by('name')
-        template = Template("{% for user in users %}{{ user.name }}{% ifequal forloop.counter 2 %} {% for inner_user in users %}{{ inner_user.name }}{% endfor %} {% endifequal %}{% endfor %}")
-        rendered = template.render(Context({'users': users}))
-        self.assertEqual(rendered, 'AB ABCD CD')
-
-    def test_filter(self):
-        """Ensure that a queryset and filters work as expected
-        """
-
-        class Note(Document):
-            text = StringField()
-
-        for i in xrange(1, 101):
-            Note(name="Note: %s" % i).save()
-
-        # Check the count
-        self.assertEqual(Note.objects.count(), 100)
-
-        # Get the first 10 and confirm
-        notes = Note.objects[:10]
-        self.assertEqual(notes.count(), 10)
-
-        # Test djangos template filters
-        # self.assertEqual(length(notes), 10)
-        t = Template("{{ notes.count }}")
-        c = Context({"notes": notes})
-        self.assertEqual(t.render(c), "10")
-
-        # Test with skip
-        notes = Note.objects.skip(90)
-        self.assertEqual(notes.count(), 10)
-
-        # Test djangos template filters
-        self.assertEqual(notes.count(), 10)
-        t = Template("{{ notes.count }}")
-        c = Context({"notes": notes})
-        self.assertEqual(t.render(c), "10")
-
-        # Test with limit
-        notes = Note.objects.skip(90)
-        self.assertEqual(notes.count(), 10)
-
-        # Test djangos template filters
-        self.assertEqual(notes.count(), 10)
-        t = Template("{{ notes.count }}")
-        c = Context({"notes": notes})
-        self.assertEqual(t.render(c), "10")
-
-        # Test with skip and limit
-        notes = Note.objects.skip(10).limit(10)
-
-        # Test djangos template filters
-        self.assertEqual(notes.count(), 10)
-        t = Template("{{ notes.count }}")
-        c = Context({"notes": notes})
-        self.assertEqual(t.render(c), "10")
-
-
-class MongoDBSessionTest(SessionTestsMixin, unittest.TestCase):
-    backend = SessionStore
-
-    def setUp(self):
-        if PY3:
-            raise SkipTest('django does not have Python 3 support')
-        connect(db='mongoenginetest')
-        MongoSession.drop_collection()
-        super(MongoDBSessionTest, self).setUp()
-
-    def assertIn(self, first, second, msg=None):
-        self.assertTrue(first in second, msg)
-
-    def assertNotIn(self, first, second, msg=None):
-        self.assertFalse(first in second, msg)
-
-    def test_first_save(self):
-        session = SessionStore()
-        session['test'] = True
-        session.save()
-        self.assertTrue('test' in session)
-
-    def test_session_expiration_tz(self):
-        activate_timezone(FixedOffset(60, 'UTC+1'))
-        # create and save new session
-        session = SessionStore()
-        session.set_expiry(600)  # expire in 600 seconds
-        session['test_expire'] = True
-        session.save()
-        # reload session with key
-        key = session.session_key
-        session = SessionStore(key)
-        self.assertTrue('test_expire' in session, 'Session has expired before it is expected')
-
-
-class MongoAuthTest(unittest.TestCase):
-    user_data = {
-        'username': 'user',
-        'email': 'user@example.com',
-        'password': 'test',
-    }
-
-    def setUp(self):
-        if PY3:
-            raise SkipTest('django does not have Python 3 support')
-        if not DJ15:
-            raise SkipTest('mongo_auth requires Django 1.5')
-        connect(db='mongoenginetest')
-        User.drop_collection()
-        super(MongoAuthTest, self).setUp()
-
-    def test_user_model(self):
-        self.assertEqual(get_user_model(), MongoUser)
-
-    def test_user_manager(self):
-        manager = get_user_model()._default_manager
-        self.assertIsInstance(manager, MongoUserManager)
-
-    def test_user_manager_exception(self):
-        manager = get_user_model()._default_manager
-        self.assertRaises(MongoUser.DoesNotExist, manager.get,
-                          username='not found')
-
-    def test_create_user(self):
-        manager = get_user_model()._default_manager
-        user = manager.create_user(**self.user_data)
-        self.assertIsInstance(user, User)
-        db_user = User.objects.get(username='user')
-        self.assertEqual(user.id, db_user.id)
-
-    def test_authenticate(self):
-        get_user_model()._default_manager.create_user(**self.user_data)
-        user = authenticate(username='user', password='fail')
-        self.assertIsNone(user)
-        user = authenticate(username='user', password='test')
-        db_user = User.objects.get(username='user')
-        self.assertEqual(user.id, db_user.id)
-
-if __name__ == '__main__':
-    unittest.main()

tests/test_jinja.py

@@ -1,47 +0,0 @@
-import sys
-sys.path[0:0] = [""]
-
-import unittest
-
-from mongoengine import *
-
-import jinja2
-
-
-class TemplateFilterTest(unittest.TestCase):
-
-    def setUp(self):
-        connect(db='mongoenginetest')
-
-    def test_jinja2(self):
-        env = jinja2.Environment()
-
-        class TestData(Document):
-            title = StringField()
-            description = StringField()
-
-        TestData.drop_collection()
-
-        examples = [('A', '1'),
-                    ('B', '2'),
-                    ('C', '3')]
-
-        for title, description in examples:
-            TestData(title=title, description=description).save()
-
-        tmpl = """
-{%- for record in content -%}
-    {%- if loop.first -%}{ {%- endif -%}
-    "{{ record.title }}": "{{ record.description }}"
-    {%- if loop.last -%} }{%- else -%},{% endif -%}
-{%- endfor -%}
-"""
-        ctx = {'content': TestData.objects}
-        template = env.from_string(tmpl)
-        rendered = template.render(**ctx)
-
-        self.assertEqual('{"A": "1","B": "2","C": "3"}', rendered)
-
-
-if __name__ == '__main__':
-    unittest.main()

tests/test_replicaset_connection.py

@@ -1,17 +1,33 @@
 import sys
+
 sys.path[0:0] = [""]
 import unittest
 
-import pymongo
-from pymongo import ReadPreference, ReplicaSetConnection
+from pymongo import ReadPreference
+
+from mongoengine.python_support import IS_PYMONGO_3
+
+if IS_PYMONGO_3:
+    from pymongo import MongoClient
+    CONN_CLASS = MongoClient
+    READ_PREF = ReadPreference.SECONDARY
+else:
+    from pymongo import ReplicaSetConnection
+    CONN_CLASS = ReplicaSetConnection
+    READ_PREF = ReadPreference.SECONDARY_ONLY
 
 import mongoengine
 from mongoengine import *
-from mongoengine.connection import get_db, get_connection, ConnectionError
+from mongoengine.connection import ConnectionError
 
 
 class ConnectionTest(unittest.TestCase):
 
+    def setUp(self):
+        mongoengine.connection._connection_settings = {}
+        mongoengine.connection._connections = {}
+        mongoengine.connection._dbs = {}
+
     def tearDown(self):
         mongoengine.connection._connection_settings = {}
         mongoengine.connection._connections = {}
@@ -22,14 +38,17 @@ class ConnectionTest(unittest.TestCase):
         """
 
         try:
-            conn = connect(db='mongoenginetest', host="mongodb://localhost/mongoenginetest?replicaSet=rs", read_preference=ReadPreference.SECONDARY_ONLY)
+            conn = connect(db='mongoenginetest',
+                           host="mongodb://localhost/mongoenginetest?replicaSet=rs",
+                           read_preference=READ_PREF)
         except ConnectionError, e:
             return
 
-        if not isinstance(conn, ReplicaSetConnection):
+        if not isinstance(conn, CONN_CLASS):
+            # really???
             return
 
-        self.assertEqual(conn.read_preference, ReadPreference.SECONDARY_ONLY)
+        self.assertEqual(conn.read_preference, READ_PREF)
 
 if __name__ == '__main__':
     unittest.main()

tests/test_signals.py

@@ -37,15 +37,27 @@ class SignalTests(unittest.TestCase):
 
             @classmethod
             def post_init(cls, sender, document, **kwargs):
-                signal_output.append('post_init signal, %s' % document)
+                signal_output.append('post_init signal, %s, document._created = %s' % (document, document._created))
+
 
             @classmethod
             def pre_save(cls, sender, document, **kwargs):
                 signal_output.append('pre_save signal, %s' % document)
 
+            @classmethod
+            def pre_save_post_validation(cls, sender, document, **kwargs):
+                signal_output.append('pre_save_post_validation signal, %s' % document)
+                if 'created' in kwargs:
+                    if kwargs['created']:
+                        signal_output.append('Is created')
+                    else:
+                        signal_output.append('Is updated')
+
             @classmethod
             def post_save(cls, sender, document, **kwargs):
+                dirty_keys = document._delta()[0].keys() + document._delta()[1].keys()
                 signal_output.append('post_save signal, %s' % document)
+                signal_output.append('post_save dirty keys, %s' % dirty_keys)
                 if 'created' in kwargs:
                     if kwargs['created']:
                         signal_output.append('Is created')
@@ -75,40 +87,19 @@ class SignalTests(unittest.TestCase):
         Author.drop_collection()
 
         class Another(Document):
+
             name = StringField()
 
             def __unicode__(self):
                 return self.name
 
-            @classmethod
-            def pre_init(cls, sender, document, **kwargs):
-                signal_output.append('pre_init Another signal, %s' % cls.__name__)
-                signal_output.append(str(kwargs['values']))
-
-            @classmethod
-            def post_init(cls, sender, document, **kwargs):
-                signal_output.append('post_init Another signal, %s' % document)
-
-            @classmethod
-            def pre_save(cls, sender, document, **kwargs):
-                signal_output.append('pre_save Another signal, %s' % document)
-
-            @classmethod
-            def post_save(cls, sender, document, **kwargs):
-                signal_output.append('post_save Another signal, %s' % document)
-                if 'created' in kwargs:
-                    if kwargs['created']:
-                        signal_output.append('Is created')
-                    else:
-                        signal_output.append('Is updated')
-
             @classmethod
             def pre_delete(cls, sender, document, **kwargs):
-                signal_output.append('pre_delete Another signal, %s' % document)
+                signal_output.append('pre_delete signal, %s' % document)
 
             @classmethod
             def post_delete(cls, sender, document, **kwargs):
-                signal_output.append('post_delete Another signal, %s' % document)
+                signal_output.append('post_delete signal, %s' % document)
 
         self.Another = Another
         Another.drop_collection()
@@ -133,6 +124,7 @@ class SignalTests(unittest.TestCase):
             len(signals.pre_init.receivers),
             len(signals.post_init.receivers),
             len(signals.pre_save.receivers),
+            len(signals.pre_save_post_validation.receivers),
             len(signals.post_save.receivers),
             len(signals.pre_delete.receivers),
             len(signals.post_delete.receivers),
@@ -143,16 +135,13 @@ class SignalTests(unittest.TestCase):
         signals.pre_init.connect(Author.pre_init, sender=Author)
         signals.post_init.connect(Author.post_init, sender=Author)
         signals.pre_save.connect(Author.pre_save, sender=Author)
+        signals.pre_save_post_validation.connect(Author.pre_save_post_validation, sender=Author)
         signals.post_save.connect(Author.post_save, sender=Author)
         signals.pre_delete.connect(Author.pre_delete, sender=Author)
         signals.post_delete.connect(Author.post_delete, sender=Author)
         signals.pre_bulk_insert.connect(Author.pre_bulk_insert, sender=Author)
         signals.post_bulk_insert.connect(Author.post_bulk_insert, sender=Author)
 
-        signals.pre_init.connect(Another.pre_init, sender=Another)
-        signals.post_init.connect(Another.post_init, sender=Another)
-        signals.pre_save.connect(Another.pre_save, sender=Another)
-        signals.post_save.connect(Another.post_save, sender=Another)
         signals.pre_delete.connect(Another.pre_delete, sender=Another)
         signals.post_delete.connect(Another.post_delete, sender=Another)
 
@@ -164,16 +153,13 @@ class SignalTests(unittest.TestCase):
         signals.post_delete.disconnect(self.Author.post_delete)
         signals.pre_delete.disconnect(self.Author.pre_delete)
         signals.post_save.disconnect(self.Author.post_save)
+        signals.pre_save_post_validation.disconnect(self.Author.pre_save_post_validation)
         signals.pre_save.disconnect(self.Author.pre_save)
         signals.pre_bulk_insert.disconnect(self.Author.pre_bulk_insert)
         signals.post_bulk_insert.disconnect(self.Author.post_bulk_insert)
 
-        signals.pre_init.disconnect(self.Another.pre_init)
-        signals.post_init.disconnect(self.Another.post_init)
         signals.post_delete.disconnect(self.Another.post_delete)
         signals.pre_delete.disconnect(self.Another.pre_delete)
-        signals.post_save.disconnect(self.Another.post_save)
-        signals.pre_save.disconnect(self.Another.pre_save)
 
         signals.post_save.disconnect(self.ExplicitId.post_save)
 
@@ -182,6 +168,7 @@ class SignalTests(unittest.TestCase):
             len(signals.pre_init.receivers),
             len(signals.post_init.receivers),
             len(signals.pre_save.receivers),
+            len(signals.pre_save_post_validation.receivers),
             len(signals.post_save.receivers),
             len(signals.pre_delete.receivers),
             len(signals.post_delete.receivers),
@@ -207,16 +194,25 @@ class SignalTests(unittest.TestCase):
             a1 = self.Author(name='Bill Shakespeare')
             self.Author.objects.insert([a1], load_bulk=False)
 
+        def load_existing_author():
+            a  = self.Author(name='Bill Shakespeare')
+            a.save()
+            self.get_signal_output(lambda: None) # eliminate signal output
+            a1 = self.Author.objects(name='Bill Shakespeare')[0]
+        
         self.assertEqual(self.get_signal_output(create_author), [
             "pre_init signal, Author",
             "{'name': 'Bill Shakespeare'}",
-            "post_init signal, Bill Shakespeare",
+            "post_init signal, Bill Shakespeare, document._created = True",
         ])
 
         a1 = self.Author(name='Bill Shakespeare')
         self.assertEqual(self.get_signal_output(a1.save), [
             "pre_save signal, Bill Shakespeare",
+            "pre_save_post_validation signal, Bill Shakespeare",
+            "Is created",
             "post_save signal, Bill Shakespeare",
+            "post_save dirty keys, ['name']",
             "Is created"
         ])
 
@@ -224,7 +220,10 @@ class SignalTests(unittest.TestCase):
         a1.name = 'William Shakespeare'
         self.assertEqual(self.get_signal_output(a1.save), [
             "pre_save signal, William Shakespeare",
+            "pre_save_post_validation signal, William Shakespeare",
+            "Is updated",
             "post_save signal, William Shakespeare",
+            "post_save dirty keys, ['name']",
             "Is updated"
         ])
 
@@ -233,12 +232,22 @@ class SignalTests(unittest.TestCase):
             'post_delete signal, William Shakespeare',
         ])
 
+        signal_output = self.get_signal_output(load_existing_author)
+        # test signal_output lines separately, because of random ObjectID after object load
+        self.assertEqual(signal_output[0],
+            "pre_init signal, Author",
+        )
+        self.assertEqual(signal_output[2],
+            "post_init signal, Bill Shakespeare, document._created = False",
+        )
+
+
         signal_output = self.get_signal_output(bulk_create_author_with_load)
 
         # The output of this signal is not entirely deterministic. The reloaded
         # object will have an object ID. Hence, we only check part of the output
-        self.assertEqual(signal_output[3],
-            "pre_bulk_insert signal, [<Author: Bill Shakespeare>]")
+        self.assertEqual(signal_output[3], "pre_bulk_insert signal, [<Author: Bill Shakespeare>]"
+        )
         self.assertEqual(signal_output[-2:],
             ["post_bulk_insert signal, [<Author: Bill Shakespeare>]",
              "Is loaded",])
@@ -246,13 +255,20 @@ class SignalTests(unittest.TestCase):
         self.assertEqual(self.get_signal_output(bulk_create_author_without_load), [
             "pre_init signal, Author",
             "{'name': 'Bill Shakespeare'}",
-            "post_init signal, Bill Shakespeare",
+            "post_init signal, Bill Shakespeare, document._created = True",
             "pre_bulk_insert signal, [<Author: Bill Shakespeare>]",
             "post_bulk_insert signal, [<Author: Bill Shakespeare>]",
             "Not loaded",
         ])
 
-        self.Author.objects.delete()
+    def test_queryset_delete_signals(self):
+        """ Queryset delete should throw some signals. """
+
+        self.Another(name='Bill Shakespeare').save()
+        self.assertEqual(self.get_signal_output(self.Another.objects.delete), [
+            'pre_delete signal, Bill Shakespeare',
+            'post_delete signal, Bill Shakespeare',
+        ])
 
     def test_signals_with_explicit_doc_ids(self):
         """ Model saves must have a created flag the first time."""
@@ -263,5 +279,33 @@ class SignalTests(unittest.TestCase):
         # second time, it must be an update
         self.assertEqual(self.get_signal_output(ei.save), ['Is updated'])
 
+    def test_signals_with_switch_collection(self):
+        ei = self.ExplicitId(id=123)
+        ei.switch_collection("explicit__1")
+        self.assertEqual(self.get_signal_output(ei.save), ['Is created'])
+        ei.switch_collection("explicit__1")
+        self.assertEqual(self.get_signal_output(ei.save), ['Is updated'])
+
+        ei.switch_collection("explicit__1", keep_created=False)
+        self.assertEqual(self.get_signal_output(ei.save), ['Is created'])
+        ei.switch_collection("explicit__1", keep_created=False)
+        self.assertEqual(self.get_signal_output(ei.save), ['Is created'])
+
+    def test_signals_with_switch_db(self):
+        connect('mongoenginetest')
+        register_connection('testdb-1', 'mongoenginetest2')
+
+        ei = self.ExplicitId(id=123)
+        ei.switch_db("testdb-1")
+        self.assertEqual(self.get_signal_output(ei.save), ['Is created'])
+        ei.switch_db("testdb-1")
+        self.assertEqual(self.get_signal_output(ei.save), ['Is updated'])
+
+        ei.switch_db("testdb-1", keep_created=False)
+        self.assertEqual(self.get_signal_output(ei.save), ['Is created'])
+        ei.switch_db("testdb-1", keep_created=False)
+        self.assertEqual(self.get_signal_output(ei.save), ['Is created'])
+
+
 if __name__ == '__main__':
     unittest.main()

tox.ini

@@ -0,0 +1,14 @@
+[tox]
+envlist = {py26,py27,py32,py33,py34,pypy,pypy3}-{mg27,mg28}
+#envlist = {py26,py27,py32,py33,py34,pypy,pypy3}-{mg27,mg28,mg30,mgdev}
+
+[testenv]
+commands =
+    python setup.py nosetests {posargs}
+deps =
+    nose
+    rednose
+    mg27: PyMongo<2.8
+    mg28: PyMongo>=2.8,<3.0
+    mg30: PyMongo>=3.0
+    mgdev: https://github.com/mongodb/mongo-python-driver/tarball/master