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Code Issues Releases Wiki Activity

Fixed #20242 - Added a regression test for prefetch_related.

Browse Source 
Issue was fixed by removal of chunked reads from
QuerySet iteration in 70679243d1.

Thanks Simeon Visser for the patch.
This commit is contained in:
Tim Graham 2013-05-28 13:35:08 -04:00
parent 1fdc3d256d
commit a2967d5204
2 changed files with 11 additions and 0 deletions
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1
AUTHORS
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@ -594,6 +594,7 @@ answer newbie questions, and generally made Django that much better:
I.S. van Oostveen <v.oostveen@idca.nl>
viestards.lists@gmail.com
George Vilches <gav@thataddress.com>
Simeon Visser <http://simeonvisser.com>
Vlado <vlado@labath.org>
Zachary Voase <zacharyvoase@gmail.com>
Marijn Vriens <marijn@metronomo.cl>

10
tests/prefetch_related/tests.py
View File

@ -107,6 +107,16 @@ class PrefetchRelatedTests(TestCase):
qs = Book.objects.prefetch_related('first_time_authors')
[b.first_time_authors.exists() for b in qs]
def test_in_and_prefetch_related(self):
"""
Regression test for #20242 - QuerySet "in" didn't work the first time
when using prefetch_related. This was fixed by the removal of chunked
reads from QuerySet iteration in
70679243d1786e03557c28929f9762a119e3ac14.
"""
qs = Book.objects.prefetch_related('first_time_authors')
self.assertTrue(qs[0] in qs)
def test_clear(self):
"""
Test that we can clear the behavior by calling prefetch_related()