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Fixed #13227 -- Ensure that the query cache is flushed when a QuerySet is deepcopied, avoiding problems when an evaluated queryset is used as a subquery. Thanks to claudep for the report.

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git-svn-id: http://code.djangoproject.com/svn/django/trunk@12970 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Russell Keith-Magee 2010-04-13 15:18:10 +00:00
parent b3390fede0
commit e93f56b174
2 changed files with 24 additions and 5 deletions
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9
django/db/models/query.py
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@ -45,11 +45,12 @@ class QuerySet(object):
"""
Deep copy of a QuerySet doesn't populate the cache
"""
obj_dict = deepcopy(self.__dict__, memo)
obj_dict['_iter'] = None
obj = self.__class__()
obj.__dict__.update(obj_dict)
for k,v in self.__dict__.items():
if k in ('_iter','_result_cache'):
obj.__dict__[k] = None
else:
obj.__dict__[k] = deepcopy(v, memo)
return obj
def __getstate__(self):