Ticket #10458: patch.diff

tests/regressiontests/views/tests/generic/date_based.py

@@ -1 +1 @@
 # coding: utf-8
 from django.test import TestCase
-from datetime import datetime
+from datetime import datetime, date
 from datetime import timedelta
 from regressiontests.views.models import Article, Author, DateArticle
 
@@ -72 +72 @@
 
         article2.date_created = first_second_of_feb.date()
         article2.save()
+        
+        # regression test for #10458
         response = self.client.get('/views/date_based/datefield/archive_month/2004/02/')
         self.assertEqual(response.status_code, 200)
+        self.assertEqual(response.context['next_month'], date(2004, 3, 1))
 
         article2.date_created = (first_second_of_feb-two_seconds).date()
         article2.save()

django/views/generic/date_based.py

@@ -133 +133 @@
         '%s__gte' % date_field: first_day,
         '%s__lt' % date_field: last_day,
     }
-
+    last_day = last_day - datetime.timedelta(days=1)
     # Only bother to check current date if the month isn't in the past and future objects are requested.
     if last_day >= now.date() and not allow_future:
         lookup_kwargs['%s__lte' % date_field] = now