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Code Issues 32 Releases Wiki Activity

Separated autocommit and isolation level handling for PostgreSQL.

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Autocommit cannot be manipulated independently from an open connection.
This commit introduces a minor change in behavior: entering transaction
management forces opening a databasse connection. This shouldn't be
backwards incompatible in any practical use case.
This commit is contained in:
Aymeric Augustin
2013-03-02 16:57:56 +01:00
parent f515619494
commit 8717b0668c
2 changed files with 53 additions and 40 deletions
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17
tests/transactions_regress/tests.py
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@@ -274,31 +274,39 @@ class TestPostgresAutocommitAndIsolation(TransactionTestCase):
connections[DEFAULT_DB_ALIAS] = self._old_backend
def test_initial_autocommit_state(self):
# Autocommit is activated when the connection is created.
connection.cursor().close()
self.assertTrue(connection.features.uses_autocommit)
self.assertEqual(connection.isolation_level, self._autocommit)
self.assertTrue(connection.autocommit)
def test_transaction_management(self):
transaction.enter_transaction_management()
self.assertFalse(connection.autocommit)
self.assertEqual(connection.isolation_level, self._serializable)
transaction.leave_transaction_management()
self.assertEqual(connection.isolation_level, self._autocommit)
self.assertTrue(connection.autocommit)
def test_transaction_stacking(self):
transaction.enter_transaction_management()
self.assertFalse(connection.autocommit)
self.assertEqual(connection.isolation_level, self._serializable)
transaction.enter_transaction_management()
self.assertFalse(connection.autocommit)
self.assertEqual(connection.isolation_level, self._serializable)
transaction.leave_transaction_management()
self.assertFalse(connection.autocommit)
self.assertEqual(connection.isolation_level, self._serializable)
transaction.leave_transaction_management()
self.assertEqual(connection.isolation_level, self._autocommit)
self.assertTrue(connection.autocommit)
def test_enter_autocommit(self):
transaction.enter_transaction_management()
self.assertFalse(connection.autocommit)
self.assertEqual(connection.isolation_level, self._serializable)
list(Mod.objects.all())
self.assertTrue(transaction.is_dirty())
@@ -311,9 +319,10 @@ class TestPostgresAutocommitAndIsolation(TransactionTestCase):
list(Mod.objects.all())
self.assertFalse(transaction.is_dirty())
transaction.leave_transaction_management()
self.assertFalse(connection.autocommit)
self.assertEqual(connection.isolation_level, self._serializable)
transaction.leave_transaction_management()
self.assertEqual(connection.isolation_level, self._autocommit)
self.assertTrue(connection.autocommit)
class TestManyToManyAddTransaction(TransactionTestCase):