Reverted [14563] because it introduced a dependency from core on a contrib app (contenttypes). Fixes #16283, Refs #3055. Thanks TheRoSS for the report and Aymeric Augustin for finding the problem.

This caused models shipped with some contrib apps to pollute the namespace when user's apps had the same name (e.g. auth, sites), even when these contrib apps weren't installed.

This undesired loading of contrib apps happened when model validation was executed, for example when running management commands that set or inherit `requires_model_validation=True`:
cleanup, dumpdata, flush, loaddata, reset, runfcgi, sql, sqlall, sqlclear, sqlcustom, sqlflush, sqlindexes, sqlinitialdata, sqlreset, sqlsequencereset, syncdb, createsuperusers, ping_google, collectstatic, findstatic.

This could also cause hard to diagnose problems e.g. when performing reverse URL resolving.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@16493 bcc190cf-cafb-0310-a4f2-bffc1f526a37

1 files changed, 0 insertions, 17 deletions

diff --git a/tests/modeltests/invalid_models/models.py b/tests/modeltests/invalid_models/models.py
index ab9edd6461..45f302413d 100644
--- a/tests/modeltests/invalid_models/models.py
+++ b/tests/modeltests/invalid_models/models.py
@@ -4,7 +4,6 @@
 This example exists purely to point out errors in models.
 """
 
-from django.contrib.contenttypes import generic
 from django.db import models
 
 class FieldErrors(models.Model):
@@ -219,21 +218,6 @@ class InvalidSetNull(models.Model):
 class InvalidSetDefault(models.Model):
     fk = models.ForeignKey('self', on_delete=models.SET_DEFAULT)
 
-class Tag(models.Model):
-   name = models.CharField("name", max_length=20)
-
-class TaggedObject(models.Model):
-   object_id = models.PositiveIntegerField("Object ID")
-   tag = models.ForeignKey(Tag)
-   content_object = generic.GenericForeignKey()
-
-class UserTaggedObject(models.Model):
-   object_tag = models.ForeignKey(TaggedObject)
-
-class ArticleAttachment(models.Model):
-   tags = generic.GenericRelation(TaggedObject)
-   user_tags = generic.GenericRelation(UserTaggedObject)
-
 model_errors = """invalid_models.fielderrors: "charfield": CharFields require a "max_length" attribute that is a positive integer.
 invalid_models.fielderrors: "charfield2": CharFields require a "max_length" attribute that is a positive integer.
 invalid_models.fielderrors: "charfield3": CharFields require a "max_length" attribute that is a positive integer.
@@ -343,5 +327,4 @@ invalid_models.nonuniquefktarget2: Field 'bad' under model 'FKTarget' must have
 invalid_models.nonexistingorderingwithsingleunderscore: "ordering" refers to "does_not_exist", a field that doesn't exist.
 invalid_models.invalidsetnull: 'fk' specifies on_delete=SET_NULL, but cannot be null.
 invalid_models.invalidsetdefault: 'fk' specifies on_delete=SET_DEFAULT, but has no default value.
-invalid_models.articleattachment: Model 'UserTaggedObject' must have a GenericForeignKey in order to create a GenericRelation that points to it.
 """