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[1.7.x] Fixed #23611 -- update_or_create failing from a related manager

Added update_or_create to RelatedManager, ManyRelatedManager and
GenericRelatedObjectManager.
Added missing get_or_create to GenericRelatedObjectManager.

Conflicts:
	tests/generic_relations/tests.py
	tests/get_or_create/tests.py

Backport of ed37f7e979 from master
This commit is contained in:
André Ericson
2014-10-08 03:27:31 +07:00
committed by Loic Bistuer
parent dbd52f339c
commit fa4b6482df
6 changed files with 159 additions and 5 deletions

View File

@@ -309,6 +309,64 @@ class GenericRelationsTests(TestCase):
TaggedItem.objects.get(content_object='')
class GetOrCreateAndUpdateOrCreateTests(TestCase):
"""
GenericRelationsTests has changed significantly on master, this
standalone TestCase is part of the backport for #23611.
"""
def setUp(self):
self.bacon = Vegetable.objects.create(name="Bacon", is_yucky=False)
self.bacon.tags.create(tag="fatty")
self.bacon.tags.create(tag="salty")
def test_generic_update_or_create_when_created(self):
"""
Should be able to use update_or_create from the generic related manager
to create a tag. Refs #23611.
"""
count = self.bacon.tags.count()
tag, created = self.bacon.tags.update_or_create(tag='stinky')
self.assertTrue(created)
self.assertEqual(count + 1, self.bacon.tags.count())
def test_generic_update_or_create_when_updated(self):
"""
Should be able to use update_or_create from the generic related manager
to update a tag. Refs #23611.
"""
count = self.bacon.tags.count()
tag = self.bacon.tags.create(tag='stinky')
self.assertEqual(count + 1, self.bacon.tags.count())
tag, created = self.bacon.tags.update_or_create(defaults={'tag': 'juicy'}, id=tag.id)
self.assertFalse(created)
self.assertEqual(count + 1, self.bacon.tags.count())
self.assertEqual(tag.tag, 'juicy')
def test_generic_get_or_create_when_created(self):
"""
Should be able to use get_or_create from the generic related manager
to create a tag. Refs #23611.
"""
count = self.bacon.tags.count()
tag, created = self.bacon.tags.get_or_create(tag='stinky')
self.assertTrue(created)
self.assertEqual(count + 1, self.bacon.tags.count())
def test_generic_get_or_create_when_exists(self):
"""
Should be able to use get_or_create from the generic related manager
to get a tag. Refs #23611.
"""
count = self.bacon.tags.count()
tag = self.bacon.tags.create(tag="stinky")
self.assertEqual(count + 1, self.bacon.tags.count())
tag, created = self.bacon.tags.get_or_create(id=tag.id, defaults={'tag': 'juicy'})
self.assertFalse(created)
self.assertEqual(count + 1, self.bacon.tags.count())
# shouldn't had changed the tag
self.assertEqual(tag.tag, 'stinky')
class CustomWidget(forms.TextInput):
pass