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-rw-r--r--tests/generic_relations/models.py4
-rw-r--r--tests/generic_relations/tests.py10
2 files changed, 13 insertions, 1 deletions
diff --git a/tests/generic_relations/models.py b/tests/generic_relations/models.py
index 4b42354d99..7dc3c93b07 100644
--- a/tests/generic_relations/models.py
+++ b/tests/generic_relations/models.py
@@ -114,6 +114,10 @@ class Rock(Mineral):
tags = GenericRelation(TaggedItem)
+class ValuableRock(Mineral):
+ tags = GenericRelation(ValuableTaggedItem)
+
+
class ManualPK(models.Model):
id = models.IntegerField(primary_key=True)
tags = GenericRelation(TaggedItem, related_query_name='manualpk')
diff --git a/tests/generic_relations/tests.py b/tests/generic_relations/tests.py
index 72d4d492c6..dab1b8af7c 100644
--- a/tests/generic_relations/tests.py
+++ b/tests/generic_relations/tests.py
@@ -12,7 +12,8 @@ from django.utils import six
from .models import (
AllowsNullGFK, Animal, Comparison, ConcreteRelatedModel,
ForConcreteModelModel, ForProxyModelModel, Gecko, ManualPK, Mineral,
- ProxyRelatedModel, Rock, TaggedItem, ValuableTaggedItem, Vegetable,
+ ProxyRelatedModel, Rock, TaggedItem, ValuableRock, ValuableTaggedItem,
+ Vegetable,
)
@@ -400,6 +401,13 @@ class GenericRelationsTests(TestCase):
)
self.assertEqual(valuedtag.content_object, quartz)
+ def test_generic_relation_to_inherited_child(self):
+ # GenericRelations to models that use multi-table inheritance work.
+ granite = ValuableRock.objects.create(name='granite', hardness=5)
+ ValuableTaggedItem.objects.create(content_object=granite, tag="countertop", value=1)
+ granite.delete() # deleting the rock should delete the related tag.
+ self.assertEqual(ValuableTaggedItem.objects.count(), 0)
+
def test_generic_inline_formsets(self):
GenericFormSet = generic_inlineformset_factory(TaggedItem, extra=1)
formset = GenericFormSet()