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Code Issues 25 Releases Wiki Activity

Fixed #35425 -- Avoided INSERT with force_update and explicit pk.

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Affected models where the primary key field is defined with a
default or db_default, such as UUIDField.
This commit is contained in:
Jacob Walls 2024-05-04 17:11:07 -04:00 committed by Sarah Boyce
parent 34a503162f
commit ceea86baa3
2 changed files with 7 additions and 0 deletions
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1
django/db/models/base.py
View File

@ -1088,6 +1088,7 @@ class Model(AltersData, metaclass=ModelBase):
if (
not raw
and not force_insert
and not force_update
and self._state.adding
and (
(meta.pk.default and meta.pk.default is not NOT_PROVIDED)

6
tests/basic/tests.py
View File

@ -186,6 +186,12 @@ class ModelInstanceCreationTests(TestCase):
with self.assertNumQueries(1):
PrimaryKeyWithDefault().save()
def test_save_primary_with_default_force_update(self):
# An UPDATE attempt is made if explicitly requested.
obj = PrimaryKeyWithDefault.objects.create()
with self.assertNumQueries(1):
PrimaryKeyWithDefault(uuid=obj.pk).save(force_update=True)
def test_save_primary_with_db_default(self):
# An UPDATE attempt is skipped when a primary key has db_default.
with self.assertNumQueries(1):