mirror of
https://github.com/django/django.git
synced 2024-12-25 02:26:12 +00:00
64 lines
2.1 KiB
Python
64 lines
2.1 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
|
|
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)
|
|
self.assertRaises(ValueError, c1.save, force_update=True)
|
|
c1.save(force_insert=True)
|
|
|
|
# Won't work because we can't insert a pk of the same value.
|
|
sid = transaction.savepoint()
|
|
c.value = 5
|
|
self.assertRaises(IntegrityError, c.save, force_insert=True)
|
|
transaction.savepoint_rollback(sid)
|
|
|
|
# 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)
|
|
self.assertRaises(DatabaseError, 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)
|