#12665: get_or_create fails with self as a parameter
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Reporter: timo | Owner: nobody
Status: new | Milestone:
Component: Core framework | Version: SVN
Keywords: get_or_create deepcopy TypeError | Stage: Unreviewed
Has_patch: 0 |
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I believe this bug was introduced in changeset [11916].
I have the following code (abbreviated) which works fine on Django 1.1:
{{{
class UserProfile(models.Model):
user = models.ForeignKey(User, unique=True)
client = models.ForeignKey(Client)
class Client(models.Model):
def create_login(self):
UserProfile.objects.get_or_create(
user = user,
client = self,
)
}}}
However, the create_login method generates the following traceback with
the latest SVN checkout:
{{{
File "/home/tim/code/python/django-trunk/django/db/models/manager.py",
line 135, in get_or_create
return self.get_query_set().get_or_create(**kwargs)
File "/home/tim/code/python/django-trunk/django/db/models/query.py",
line 364, in get_or_create
return self.get(**kwargs), False
File "/home/tim/code/python/django-trunk/django/db/models/query.py",
line 333, in get
clone = clone.order_by()
File "/home/tim/code/python/django-trunk/django/db/models/query.py",
line 637, in order_by
obj = self._clone()
File "/home/tim/code/python/django-trunk/django/db/models/query.py",
line 737, in _clone
query = self.query.clone()
File "/home/tim/code/python/django-trunk/django/db/models/sql/query.py",
line 228, in clone
obj.where = deepcopy(self.where)
File "/usr/lib/python2.5/copy.py", line 173, in deepcopy
y = copier(memo)
File "/home/tim/code/python/django-trunk/django/utils/tree.py", line 61,
in __deepcopy__
obj.children = deepcopy(self.children, memodict)
File "/usr/lib/python2.5/copy.py", line 162, in deepcopy
y = copier(x, memo)
File "/usr/lib/python2.5/copy.py", line 227, in _deepcopy_list
y.append(deepcopy(a, memo))
File "/usr/lib/python2.5/copy.py", line 162, in deepcopy
y = copier(x, memo)
File "/usr/lib/python2.5/copy.py", line 234, in _deepcopy_tuple
y.append(deepcopy(a, memo))
File "/usr/lib/python2.5/copy.py", line 189, in deepcopy
y = _reconstruct(x, rv, 1, memo)
File "/usr/lib/python2.5/copy.py", line 337, in _reconstruct
state = deepcopy(state, memo)
File "/usr/lib/python2.5/copy.py", line 162, in deepcopy
y = copier(x, memo)
File "/usr/lib/python2.5/copy.py", line 254, in _deepcopy_dict
y[deepcopy(key, memo)] = deepcopy(value, memo)
File "/usr/lib/python2.5/copy.py", line 181, in deepcopy
rv = reductor(2)
TypeError: 'NoneType' object is not callable
}}}
I can try to work up a test if this looks to be a valid bug.
--
Ticket URL: <http://code.djangoproject.com/ticket/12665>
Django <http://code.djangoproject.com/>
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