#25622: InlineAdmin raises 'GenericRel' object has no attribute
'get_related_field'
-------------------------------+--------------------
Reporter: johnraz | Owner: nobody
Type: Bug | Status: new
Component: contrib.admin | Version: 1.8
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------+--------------------
I have the following setup (simplified for the sake of clarity)
{{{
# models.py
class ModelA(models.Model):
content_type = models.ForeignKey(ContentType)
object_id = models.PositiveIntegerField()
content_object = GenericForeignKey('content_type', 'object_id')
uuid = models.UUIDField(default=uuid.uuid4, unique=True,
db_index=True)
class ModelB(models.Model):
model_a_fk = models.ForeignKey('ModelA', to_field='uuid')
model_c_fk = models.ForeignKey('ModelC')
class ModelC(models.Model):
... # nothing fancy
}}}
{{{
#admin.py
class ModelAAdmin(admin.ModelAdmin):
.... #nothing fancy
class InlineModelB(admin.TabularInline):
model=ModelB
raw_id_fields=('model_a_fk', 'model_c_fk')
class ModelBAdmin(admin.ModelAdmin):
raw_id_fields=('model_a_fk', 'model_c_fk')
class ModelCAdmin(admin.ModelAdmin):
inlines=(InlineModelB,)
}}}
Now, when going to the `ModelCAdmin` view, triggering the search pop-up
for `ModelB.model_a_fk` field, I will get the following traceback:
{{{
File "/usr/local/lib/python2.7/dist-
packages/django/core/handlers/base.py", line 132, in get_response
response = wrapped_callback(request, *callback_args,
**callback_kwargs)
File "/usr/local/lib/python2.7/dist-
packages/django/contrib/admin/options.py", line 616, in wrapper
return self.admin_site.admin_view(view)(*args, **kwargs)
File "/usr/local/lib/python2.7/dist-
packages/django/utils/decorators.py", line 110, in _wrapped_view
response = view_func(request, *args, **kwargs)
File "/usr/local/lib/python2.7/dist-
packages/django/views/decorators/cache.py", line 57, in _wrapped_view_func
response = view_func(request, *args, **kwargs)
File "/usr/local/lib/python2.7/dist-
packages/django/contrib/admin/sites.py", line 233, in inner
return view(request, *args, **kwargs)
File "/usr/local/lib/python2.7/dist-
packages/django/utils/decorators.py", line 34, in _wrapper
return bound_func(*args, **kwargs)
File "/usr/local/lib/python2.7/dist-
packages/django/utils/decorators.py", line 110, in _wrapped_view
response = view_func(request, *args, **kwargs)
File "/usr/local/lib/python2.7/dist-
packages/django/utils/decorators.py", line 30, in bound_func
return func.__get__(self, type(self))(*args2, **kwargs2)
File "/usr/local/lib/python2.7/dist-
packages/django/contrib/admin/options.py", line 1548, in changelist_view
self.list_max_show_all, self.list_editable, self)
File "/usr/local/lib/python2.7/dist-
packages/django/contrib/admin/views/main.py", line 67, in __init__
if to_field and not model_admin.to_field_allowed(request, to_field):
File "/usr/local/lib/python2.7/dist-
packages/django/contrib/admin/options.py", line 489, in to_field_allowed
related_object.field.rel.get_related_field() == field):
AttributeError: 'GenericRel' object has no attribute 'get_related_field'
}}}
Triggering the search pop-up for `ModelB.model_c_fk` works just fine.
It looks like https://code.djangoproject.com/ticket/23616 but in a
different place.
--
Ticket URL: <https://code.djangoproject.com/ticket/25622>
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