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[1.1.X] Fixed #12121 -- Modified __reduce__ on a model to avoid an infinite recursion problem that occurs on Python 2.4. Thanks to emulbreh for the report.

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Backport of r11691 from trunk.

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.1.X@11692 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Russell Keith-Magee 2009-11-01 03:06:44 +00:00
parent 9e02b4a0e1
commit fe9a45e514
1 changed files with 17 additions and 12 deletions
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9
django/db/models/base.py
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@ -359,10 +359,15 @@ class Model(object):
only module-level classes can be pickled by the default path. only module-level classes can be pickled by the default path.
""" """
data = self.__dict__ data = self.__dict__
if not self._deferred: model = self.__class__
return super(Model, self).__reduce__() # The obvious thing to do here is to invoke super().__reduce__()
# for the non-deferred case. Don't do that.
# On Python 2.4, there is something wierd with __reduce__,
# and as a result, the super call will cause an infinite recursion.
# See #10547 and #12121.
defers = [] defers = []
pk_val = None pk_val = None
if self._deferred:
for field in self._meta.fields: for field in self._meta.fields:
if isinstance(self.__class__.__dict__.get(field.attname), if isinstance(self.__class__.__dict__.get(field.attname),
DeferredAttribute): DeferredAttribute):