Opened 8 years ago

Last modified 8 years ago

#26023 closed Bug

Importing GenericForeignKey on Django 1.9 — at Version 2

Reported by: Chris Mitchell Owned by: nobody
Component: contrib.contenttypes Version: 1.9
Severity: Normal Keywords: generic foreign keys
Cc: Triage Stage: Unreviewed
Has patch: no Needs documentation: no
Needs tests: no Patch needs improvement: no
Easy pickings: no UI/UX: no

Description (last modified by Chris Mitchell)

It appears it is not possible to import GenericForeignKey from outside a live Django project in 1.9. To reproduce this error:

from django.conf import settings
settings.configure()
from django.contrib.contenttypes.fields import GenericForeignKey

Produces:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/chris/.virtualenvs/wooey/local/lib/python2.7/site-packages/django/contrib/contenttypes/fields.py", line 5, in <module>
    from django.contrib.contenttypes.models import ContentType
  File "/home/chris/.virtualenvs/wooey/local/lib/python2.7/site-packages/django/contrib/contenttypes/models.py", line 159, in <module>
    class ContentType(models.Model):
  File "/home/chris/.virtualenvs/wooey/local/lib/python2.7/site-packages/django/db/models/base.py", line 94, in __new__
    app_config = apps.get_containing_app_config(module)
  File "/home/chris/.virtualenvs/wooey/local/lib/python2.7/site-packages/django/apps/registry.py", line 239, in get_containing_app_config
    self.check_apps_ready()
  File "/home/chris/.virtualenvs/wooey/local/lib/python2.7/site-packages/django/apps/registry.py", line 124, in check_apps_ready
    raise AppRegistryNotReady("Apps aren't loaded yet.")
django.core.exceptions.AppRegistryNotReady: Apps aren't loaded yet.

This seems to be occurring because ModelBase is attempting to get the app config, but the configuration step has not occurred.

Change History (2)

comment:1 by Tim Graham, 8 years ago

Could you clarify the use case? You need to have django.contrib.contentypes in INSTALLED_APPS, I believe.

comment:2 by Chris Mitchell, 8 years ago

Description: modified (diff)
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