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Fixed #31190 -- Fixed prefetch_related() crash for GenericForeignKey with custom ContentType foreign key.

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Regression in dffa3e1992.
This commit is contained in:
Eugene Hatsko 2020-01-21 10:12:25 +03:00 • committed by Mariusz Felisiak
parent b753e0e750
commit 0b013564ef
3 changed files with 19 additions and 1 deletions
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13
tests/generic_relations/tests.py
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@ -564,6 +564,19 @@ class GenericRelationsTests(TestCase):
for tag in tags:
self.assertSequenceEqual(tag.content_object.tags.all(), [tag])
def test_prefetch_related_custom_object_id(self):
tiger = Animal.objects.create(common_name='tiger')
cheetah = Animal.objects.create(common_name='cheetah')
Comparison.objects.create(
first_obj=cheetah, other_obj=tiger, comparative='faster',
)
Comparison.objects.create(
first_obj=tiger, other_obj=cheetah, comparative='cooler',
)
qs = Comparison.objects.prefetch_related('first_obj__comparisons')
for comparison in qs:
self.assertSequenceEqual(comparison.first_obj.comparisons.all(), [comparison])
class ProxyRelatedModelTest(TestCase):
def test_default_behavior(self):