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Fixed #22023 -- Raised an error for values() followed by defer() or only().

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Previously, doing so resulted in invalid data or crash.

Thanks jtiai for the report and Karol Jochelson,
Jakub Nowak, Loic Bistuer, and Baptiste Mispelon for reviews.
This commit is contained in:
Artur Frysiak 2014-02-15 22:44:14 +01:00 • committed by Tim Graham
parent a7639722f5
commit faf6a911ad
4 changed files with 34 additions and 3 deletions
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10
tests/queries/tests.py
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@ -1275,6 +1275,16 @@ class Queries3Tests(BaseQuerysetTest):
Item.objects.datetimes, 'name', 'month'
)
def test_ticket22023(self):
# only() and defer() are not applicable for ValuesQuerySet
with self.assertRaisesMessage(NotImplementedError,
"ValuesQuerySet does not implement only()"):
Valid.objects.values().only()
with self.assertRaisesMessage(NotImplementedError,
"ValuesQuerySet does not implement defer()"):
Valid.objects.values().defer()
class Queries4Tests(BaseQuerysetTest):
def setUp(self):