Ticket #10248: annotate-dates.diff

django/db/models/sql/query.py

@@ -386 +386 @@
                 # other than MySQL), then any fields mentioned in the
                 # ordering clause needs to be in the group by clause.
                 if not self.connection.features.allows_group_by_pk:
-                    grouping.extend([col for col in ordering_group_by
+                    grouping.extend([str(col) for col in ordering_group_by
                         if col not in grouping])
             else:
                 ordering = self.connection.ops.force_no_ordering()

tests/regressiontests/aggregation_regress/models.py

@@ -206 +206 @@
 >>> books.all()
 [<Book: Artificial Intelligence: A Modern Approach>, <Book: Paradigms of Artificial Intelligence Programming: Case Studies in Common Lisp>, <Book: Practical Django Projects>, <Book: Python Web Development with Django>, <Book: Sams Teach Yourself Django in 24 Hours>, <Book: The Definitive Guide to Django: Web Development Done Right>]
 
+>>> Book.objects.annotate(num_authors=Count('authors')).filter(num_authors=2).dates('pubdate', 'day')
+[datetime.datetime(1995, 1, 15, 0, 0), datetime.datetime(2007, 12, 6, 0, 0)]
+
 """
 }