diff options
| -rw-r--r-- | django/contrib/contenttypes/generic.py | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/django/contrib/contenttypes/generic.py b/django/contrib/contenttypes/generic.py index 04d4894b8a..6f120f82e0 100644 --- a/django/contrib/contenttypes/generic.py +++ b/django/contrib/contenttypes/generic.py @@ -66,7 +66,7 @@ class GenericForeignKey(six.with_metaclass(RenameGenericForeignKeyMethods)): if obj is not None: return ContentType.objects.db_manager(obj._state.db).get_for_model( obj, for_concrete_model=self.for_concrete_model) - elif id: + elif id is not None: return ContentType.objects.db_manager(using).get_for_id(id) else: # This should never happen. I love comments like this, don't you? @@ -130,7 +130,7 @@ class GenericForeignKey(six.with_metaclass(RenameGenericForeignKeyMethods)): # performance when dealing with GFKs in loops and such. f = self.model._meta.get_field(self.ct_field) ct_id = getattr(instance, f.get_attname(), None) - if ct_id: + if ct_id is not None: ct = self.get_content_type(id=ct_id, using=instance._state.db) try: rel_obj = ct.get_object_for_this_type(pk=getattr(instance, self.fk_field)) |