I have found that when running this as a normal server, the rollback
DOES work. It's just in tests it doesn't work.
On 5 Aug, 17:27, Peter Bengtsson <pete...@gmail.com> wrote:
> Here's the models:
>
> # models.py
> class Article(models.Model):
> title = models.CharField(max_length=100)
>
> # urls.py
> urlpatterns = patterns('',
> (r'^delete-rolledback/$', delete_rolledback),
> )
>
> # views.py
> def delete_rolledback(request):
> transaction.enter_transaction_management()
> transaction.managed(True)
> qs = Article.objects.all()
> for article in qs:
> if article.title.lower().startswith(request.GET.get
> ('startswith')):
> article.delete()
> break
> transaction.rollback()
> return HttpResponse("Rolled back!")
>
> # tests.py
> from django.test import TestCase
>
> from news.models import Article
>
> class SimpleTest(TestCase):
> def setUp(self):
> Article.objects.create(title=u'Abraham')
> Article.objects.create(title=u'Ben')
> Article.objects.create(title=u'Ancor')
> Article.objects.create(title=u'Wat')
>
> super(SimpleTest, self).setUp()
>
> def test_deletion(self):
> count_before = Article.objects.count()
> assert count_before == 4
> r = self.client.get('/news/delete-rolledback/',
> dict(startswith='a'))
> assert r.content.count("Rolled back")
> count_after = Article.objects.count()
> assert count_after == 4, count_after
>
> When I run these tests (with postgres or with sqlite) I get this
> assertion error:
>
> Traceback (most recent call last):
> ...
> AssertionError: 3
>
> If someone more clued up than me could take a look at this and confirm
> that it is a Django bug I can start looking into explaining what's
> wrong and possibilities of a patch.
> I've found this ticket (http://code.djangoproject.com/ticket/4758)
> where someone has experienced similar problems when using Oracle. But
> only for Oracle; he claims the same code *works* with Postgres.
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