Custom User Model for Django 1.5

mongoengine/django/auth.py

@@ -209,6 +209,9 @@ class User(Document):
     date_joined = DateTimeField(default=datetime_now,
                                 verbose_name=_('date joined'))
 
+    USERNAME_FIELD = 'username'
+    REQUIRED_FIELDS = ['email']
+
     meta = {
         'allow_inheritance': True,
         'indexes': [

mongoengine/django/mongo_auth/models.py

@@ -0,0 +1,90 @@
+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()
+