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-rw-r--r--django/db/models/sql/subqueries.py2
-rw-r--r--tests/regressiontests/queries/models.py12
2 files changed, 12 insertions, 2 deletions
diff --git a/django/db/models/sql/subqueries.py b/django/db/models/sql/subqueries.py
index 0cd393756d..f00f1bd68a 100644
--- a/django/db/models/sql/subqueries.py
+++ b/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]
diff --git a/tests/regressiontests/queries/models.py b/tests/regressiontests/queries/models.py
index cf21d5210b..ddac509ede 100644
--- a/tests/regressiontests/queries/models.py
+++ b/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)]