tickets: 8309
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| id | created | changetime | last_pulled_from_trac | stage | status | component | type | severity | version | resolution | summary | description | owner | reporter | keywords | easy | has_patch | needs_better_patch | needs_tests | needs_docs | ui_ux |
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| 8309 | 2008-08-14 13:46:52 | 2011-09-28 16:12:17 | 2022-03-06 03:41:54.629989 | Accepted | closed | Contrib apps | dev | fixed | GenericForeignKey fails when used in abstract base models | The following code will reproduce this bug: {{{ # aaa/models.py from django.contrib.contenttypes.models import ContentType from django.contrib.contenttypes import generic class MyModel(models.Model): field = models.IntegerField() class TaggedItemBase(models.Model): class Meta: abstract = True content_type = models.ForeignKey(ContentType) object_id = models.PositiveIntegerField() content_object = generic.GenericForeignKey() class TaggedItem(TaggedItemBase): """A tag on an item.""" tag = models.SlugField() class Meta: ordering = ["tag"] def __unicode__(self): return self.tag # From command shell >>> from aaa.models import MyModel, TaggedItem >>> m = MyModel(field=1) >>> m.save() >>> t = TaggedItem(content_object=m, tag="my") Traceback (most recent call last): File "<console>", line 1, in ? File "/usr/lib/python2.4/site-packages/django/db/models/base.py", line 240, in __init__ raise TypeError, "'%s' is an invalid keyword argument for this function" % kwargs.keys()[0] TypeError: 'content_object' is an invalid keyword argument for this function }}} If we do not use model inheritance, the script works fine. | jacob | Wonlay | GenericForeignKey , model inheritance | 0 | 1 | 0 | 0 | 0 | 0 |