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Code Issues 32 Releases Wiki Activity

Fixed #35238 -- Fixed database serialization crash when base managers use prefetch_related().

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Regression in 1391356276
following deprecation in eedbf930287cb72e9afab1f7208c24b1146b0c4ec.
This commit is contained in:
AlexCLeduc
2024-02-19 17:36:04 -05:00
committed by Mariusz Felisiak
parent eb2d49b734
commit a084c5d35a
4 changed files with 39 additions and 1 deletions
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17
tests/backends/base/test_creation.py
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@@ -14,6 +14,7 @@ from ..models import (
Object,
ObjectReference,
ObjectSelfReference,
SchoolBus,
SchoolClass,
)
@@ -250,6 +251,22 @@ class TestDeserializeDbFromString(TransactionTestCase):
self.assertIn('"model": "backends.schoolclass"', data)
self.assertIn('"year": 1000', data)
def test_serialize_db_to_string_base_manager_with_prefetch_related(self):
sclass = SchoolClass.objects.create(
year=2000, last_updated=datetime.datetime.now()
)
bus = SchoolBus.objects.create(number=1)
bus.schoolclasses.add(sclass)
with mock.patch("django.db.migrations.loader.MigrationLoader") as loader:
# serialize_db_to_string() serializes only migrated apps, so mark
# the backends app as migrated.
loader_instance = loader.return_value
loader_instance.migrated_apps = {"backends"}
data = connection.creation.serialize_db_to_string()
self.assertIn('"model": "backends.schoolbus"', data)
self.assertIn('"model": "backends.schoolclass"', data)
self.assertIn(f'"schoolclasses": [{sclass.pk}]', data)
class SkipTestClass:
def skip_function(self):