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Only dereference fields than need it

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Fixes MongoEngine/mongoengine#31
This commit is contained in:
Ross Lawley 2012-07-11 15:23:27 +01:00
parent 4f5aa8c43b
commit 34d08ce8ef
1 changed files with 4 additions and 2 deletions
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6
mongoengine/base.py
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@ -267,8 +267,10 @@ class ComplexBaseField(BaseField):
if instance is None:
# Document class being used rather than a document object
return self
if not self._dereference and instance._initialised:
from fields import GenericReferenceField, ReferenceField
dereference = self.field is None or isinstance(self.field,
(GenericReferenceField, ReferenceField))
if not self._dereference and instance._initialised and dereference:
from dereference import DeReference
self._dereference = DeReference() # Cached
instance._data[self.name] = self._dereference(