Fixed #12242 -- Corrected a problem with masking extra selects() in a DateQuerySet. Thanks to Alex Gaynor for his help debugging this one.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@11748 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/db/models/sql/subqueries.py

@@ -409,7 +409,7 @@ class DateQuery(Query):
         self.select = [select]
         self.select_fields = [None]
         self.select_related = False # See #7097.
-        self.extra = {}
+        self.set_extra_mask([])
         self.distinct = True
         self.order_by = order == 'ASC' and [1] or [-1]
 

tests/regressiontests/queries/models.py

@@ -755,10 +755,20 @@ Bug #6180, #6203 -- dates with limits and/or counts
 >>> Item.objects.dates('created', 'day')[0]
 datetime.datetime(2007, 12, 19, 0, 0)
 
-Bug #7087 -- dates with extra select columns
+Bug #7087/#12242 -- dates with extra select columns
 >>> Item.objects.dates('created', 'day').extra(select={'a': 1})
 [datetime.datetime(2007, 12, 19, 0, 0), datetime.datetime(2007, 12, 20, 0, 0)]
 
+>>> Item.objects.extra(select={'a': 1}).dates('created', 'day')
+[datetime.datetime(2007, 12, 19, 0, 0), datetime.datetime(2007, 12, 20, 0, 0)]
+
+>>> name="one"
+>>> Item.objects.dates('created', 'day').extra(where=['name=%s'], params=[name])
+[datetime.datetime(2007, 12, 19, 0, 0)]
+
+>>> Item.objects.extra(where=['name=%s'], params=[name]).dates('created', 'day')
+[datetime.datetime(2007, 12, 19, 0, 0)]
+
 Bug #7155 -- nullable dates
 >>> Item.objects.dates('modified', 'day')
 [datetime.datetime(2007, 12, 19, 0, 0)]