#14368: Reverse relation attribute for OneToOneField fails when set to None
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Reporter: gsakkis | Owner: nobody
Status: new | Milestone: 1.3
Component: Database layer (models, ORM) | Version: 1.2
Keywords: OneToOneField, bug | Stage: Unreviewed
Has_patch: 0 |
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Initially reported by reopening #12420
(http://code.djangoproject.com/ticket/12420#comment:10), moved to a new
ticket after the assignee's suggestion.
Test case with the sample models used at #14043:
{{{
In [6]: bob = Person.objects.create(age=34)
In [7]: bobs_soul = Soul.objects.create(person=bob)
In [8]: bob.soul == bobs_soul
Out[8]: True
In [9]: bob.soul = None
---------------------------------------------------------------------------
AttributeError Traceback (most recent call
last)
--> 258 setattr(value, self.related.field.attname,
getattr(instance, self.related.field.rel.get_related_field().attname))
259
260 # Since we already know what the related object is, seed
the related
AttributeError: 'NoneType' object has no attribute 'person_id'
}}}
The offending lines are
http://code.djangoproject.com/browser/django/trunk/django/db/models/fields/related.py#L258
and
http://code.djangoproject.com/browser/django/trunk/django/db/models/fields/related.py#L264.
It's clearly a bug because the comment at
http://code.djangoproject.com/browser/django/trunk/django/db/models/fields/related.py#L238
explicitly mentions "If null=True, we can assign null here".
--
Ticket URL: <http://code.djangoproject.com/ticket/14368>
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