Opened 20 months ago
Last modified 20 months ago
#34523 closed Bug
update_or_create not work in parallel insertion — at Initial Version
Reported by: | gatello-s | Owned by: | nobody |
---|---|---|---|
Component: | Database layer (models, ORM) | Version: | 4.2 |
Severity: | Normal | Keywords: | update_or_create TransactionManagementError |
Cc: | Anton Plotkin, Francesco Panico | Triage Stage: | Accepted |
Has patch: | yes | Needs documentation: | no |
Needs tests: | no | Patch needs improvement: | no |
Easy pickings: | no | UI/UX: | no |
Description
I am tests on mariadb 10.5.19 (myisam).
This test work fine on django-3.2.16
class TransactionManagementErrorTest(TestCase): class TestModel(models.Model): field = models.IntegerField(null=True) class Meta(object): db_table = 'test_model_update_or_create' class QuerySet(models.QuerySet): def create(self, **kwargs): super().create(**kwargs) # simulate parallel insertion return super().create(**kwargs) class TestModelManager(models.Manager.from_queryset(QuerySet)): pass objects = TestModelManager() def exec_sql(self, sql): from django.db import connections, router db = router.db_for_write(self.TestModel) connection = connections[db] connection.cursor().execute(sql) def setUp(self): super().setUp() self.exec_sql( 'CREATE TABLE IF NOT EXISTS `test_model_update_or_create` (`id` integer AUTO_INCREMENT NOT NULL PRIMARY KEY, `field` integer NULL);' ) def tearDown(self): self.exec_sql( 'DROP TABLE IF EXISTS `test_model_update_or_create`;' ) super().tearDown() def test_update_or_create(self): self.TestModel.objects.update_or_create(id=1, defaults={'field': 2})
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