[1.0.X] Fixed #9546: GenericRelations inherited from base models no longer query using the wrong content type. Backport of r10373 from trunk.

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.0.X@10374 bcc190cf-cafb-0310-a4f2-bffc1f526a37

3 files changed, 41 insertions, 0 deletions

diff --git a/tests/regressiontests/generic_relations_regress/__init__.py b/tests/regressiontests/generic_relations_regress/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/tests/regressiontests/generic_relations_regress/__init__.py
diff --git a/tests/regressiontests/generic_relations_regress/models.py b/tests/regressiontests/generic_relations_regress/models.py
new file mode 100644
index 0000000000..1a4826aaed
--- /dev/null
+++ b/tests/regressiontests/generic_relations_regress/models.py
@@ -0,0 +1,22 @@
+from django.db import models
+from django.contrib.contenttypes import generic
+from django.contrib.contenttypes.models import ContentType
+
+class Link(models.Model):
+    content_type = models.ForeignKey(ContentType)
+    object_id = models.PositiveIntegerField()
+    content_object = generic.GenericForeignKey()
+
+    def __unicode__(self):
+        return "Link to %s id=%s" % (self.content_type, self.object_id)
+
+class Place(models.Model):
+    name = models.CharField(max_length=100)
+    links = generic.GenericRelation(Link)
+    
+    def __unicode__(self):
+        return "Place: %s" % self.name
+    
+class Restaurant(Place): 
+    def __unicode__(self):
+        return "Restaurant: %s" % self.name
\ No newline at end of file
diff --git a/tests/regressiontests/generic_relations_regress/tests.py b/tests/regressiontests/generic_relations_regress/tests.py
new file mode 100644
index 0000000000..6f0863d7b4
--- /dev/null
+++ b/tests/regressiontests/generic_relations_regress/tests.py
@@ -0,0 +1,19 @@
+from django.test import TestCase
+from django.contrib.contenttypes.models import ContentType
+from models import Link, Place, Restaurant
+
+class GenericRelationTests(TestCase):
+    
+    def test_inherited_models_content_type(self):
+        """
+        Test that GenericRelations on inherited classes use the correct content
+        type.
+        """
+        
+        p = Place.objects.create(name="South Park")
+        r = Restaurant.objects.create(name="Chubby's")        
+        l1 = Link.objects.create(content_object=p)
+        l2 = Link.objects.create(content_object=r)
+        self.assertEqual(list(p.links.all()), [l1])
+        self.assertEqual(list(r.links.all()), [l2])
+        
\ No newline at end of file