mirror of
https://github.com/django/django.git
synced 2025-11-04 13:39:16 +00:00
728548e483
Squashed commit of the following:
commit 63ddb271a44df389b2c302e421fc17b7f0529755
Author: Aymeric Augustin <aymeric.augustin@m4x.org>
Date: Sun Sep 29 22:51:00 2013 +0200
Clarified interactions between atomic and exceptions.
commit 2899ec299228217c876ba3aa4024e523a41c8504
Author: Aymeric Augustin <aymeric.augustin@m4x.org>
Date: Sun Sep 22 22:45:32 2013 +0200
Fixed TransactionManagementError in tests.
Previous commit introduced an additional check to prevent running
queries in transactions that will be rolled back, which triggered a few
failures in the tests. In practice using transaction.atomic instead of
the low-level savepoint APIs was enough to fix the problems.
commit 4a639b059ea80aeb78f7f160a7d4b9f609b9c238
Author: Aymeric Augustin <aymeric.augustin@m4x.org>
Date: Tue Sep 24 22:24:17 2013 +0200
Allowed nesting constraint_checks_disabled inside atomic.
Since MySQL handles transactions loosely, this isn't a problem.
commit 2a4ab1cb6e83391ff7e25d08479e230ca564bfef
Author: Aymeric Augustin <aymeric.augustin@m4x.org>
Date: Sat Sep 21 18:43:12 2013 +0200
Prevented running queries in transactions that will be rolled back.
This avoids a counter-intuitive behavior in an edge case on databases
with non-atomic transaction semantics.
It prevents using savepoint_rollback() inside an atomic block without
calling set_rollback(False) first, which is backwards-incompatible in
tests.
Refs #21134.
commit 8e3db393853c7ac64a445b66e57f3620a3fde7b0
Author: Aymeric Augustin <aymeric.augustin@m4x.org>
Date: Sun Sep 22 22:14:17 2013 +0200
Replaced manual savepoints by atomic blocks.
This ensures the rollback flag is handled consistently in internal APIs.
68 lines
2.2 KiB
Python
68 lines
2.2 KiB
Python
from __future__ import unicode_literals
|
|
|
|
from django.db import transaction, IntegrityError, DatabaseError
|
|
from django.test import TestCase
|
|
|
|
from .models import (Counter, WithCustomPK, InheritedCounter, ProxyCounter,
|
|
SubCounter)
|
|
|
|
|
|
class ForceTests(TestCase):
|
|
def test_force_update(self):
|
|
c = Counter.objects.create(name="one", value=1)
|
|
|
|
# The normal case
|
|
c.value = 2
|
|
c.save()
|
|
# Same thing, via an update
|
|
c.value = 3
|
|
c.save(force_update=True)
|
|
|
|
# Won't work because force_update and force_insert are mutually
|
|
# exclusive
|
|
c.value = 4
|
|
with self.assertRaises(ValueError):
|
|
c.save(force_insert=True, force_update=True)
|
|
|
|
# Try to update something that doesn't have a primary key in the first
|
|
# place.
|
|
c1 = Counter(name="two", value=2)
|
|
with self.assertRaises(ValueError):
|
|
with transaction.atomic():
|
|
c1.save(force_update=True)
|
|
c1.save(force_insert=True)
|
|
|
|
# Won't work because we can't insert a pk of the same value.
|
|
c.value = 5
|
|
with self.assertRaises(IntegrityError):
|
|
with transaction.atomic():
|
|
c.save(force_insert=True)
|
|
|
|
# Trying to update should still fail, even with manual primary keys, if
|
|
# the data isn't in the database already.
|
|
obj = WithCustomPK(name=1, value=1)
|
|
with self.assertRaises(DatabaseError):
|
|
with transaction.atomic():
|
|
obj.save(force_update=True)
|
|
|
|
|
|
class InheritanceTests(TestCase):
|
|
def test_force_update_on_inherited_model(self):
|
|
a = InheritedCounter(name="count", value=1, tag="spam")
|
|
a.save()
|
|
a.save(force_update=True)
|
|
|
|
def test_force_update_on_proxy_model(self):
|
|
a = ProxyCounter(name="count", value=1)
|
|
a.save()
|
|
a.save(force_update=True)
|
|
|
|
def test_force_update_on_inherited_model_without_fields(self):
|
|
'''
|
|
Issue 13864: force_update fails on subclassed models, if they don't
|
|
specify custom fields.
|
|
'''
|
|
a = SubCounter(name="count", value=1)
|
|
a.save()
|
|
a.value = 2
|
|
a.save(force_update=True)
|