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Ticket #11283: 11283.latest-clear-ordering.diff

File 11283.latest-clear-ordering.diff, 1.1 KB (added by Julien Phalip, 14 years ago)

diff --git a/django/db/models/query.py b/django/db/models/query.py
index 8e33765..09d960b 100644

                class QuerySet(object):
                 "Cannot change a query once a slice has been taken."
         obj = self._clone()
         obj.query.set_limits(high=1)
+        obj.query.clear_ordering()
         obj.query.add_ordering('-%s' % latest_by)
         return obj.get()

diff --git a/tests/modeltests/get_latest/tests.py b/tests/modeltests/get_latest/tests.py
index 3c3588b..97cd22b 100644

                class LatestTests(TestCase):
             a3,
+        )
+        # Ensure that latest() overrides any other ordering specified on the query. Refs #11283.
+        self.assertEqual(Article.objects.order_by('id').latest(), a4)
     def test_latest_manual(self):
         # You can still use latest() with a model that doesn't have
         # "get_latest_by" set -- just pass in the field name manually.