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Merge pull request #896 from MongoEngine/topic/remove-mutable-arguments

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Use None instead of mutable arguments
This commit is contained in:
Omer Katz 2015-03-01 15:04:27 +02:00
commit 4f1d8678ea
1 changed files with 7 additions and 2 deletions
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9
mongoengine/base/document.py
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@ -297,10 +297,13 @@ class BaseDocument(object):
return self._data['_text_score'] return self._data['_text_score']
def to_mongo(self, use_db_field=True, fields=[]): def to_mongo(self, use_db_field=True, fields=None):
""" """
Return as SON data ready for use with MongoDB. Return as SON data ready for use with MongoDB.
""" """
if not fields:
fields = []
data = SON() data = SON()
data["_id"] = None data["_id"] = None
data['_cls'] = self._class_name data['_cls'] = self._class_name
@ -652,9 +655,11 @@ class BaseDocument(object):
return cls._meta.get('collection', None) return cls._meta.get('collection', None)
@classmethod @classmethod
def _from_son(cls, son, _auto_dereference=True, only_fields=[], created=False): def _from_son(cls, son, _auto_dereference=True, only_fields=None, created=False):
"""Create an instance of a Document (subclass) from a PyMongo SON. """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 # get the class name from the document, falling back to the given
# class if unavailable # class if unavailable