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Code Issues 32 Releases Wiki Activity

[1.5.x] Fixed #19607 - prefetch_related crash

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Thanks to av@rdf.ru and flarno11@yahoo.de for the report.

Backport of 4fd94969d8 from master
This commit is contained in:
Luke Plant
2013-05-24 10:01:34 +01:00
committed by Tim Graham
parent 9356495936
commit 00b39e0145
3 changed files with 51 additions and 3 deletions
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25
tests/modeltests/prefetch_related/tests.py
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@@ -8,7 +8,8 @@ from django.utils import six
from .models import (Author, Book, Reader, Qualification, Teacher, Department,
TaggedItem, Bookmark, AuthorAddress, FavoriteAuthors, AuthorWithAge,
BookWithYear, BookReview, Person, House, Room, Employee, Comment)
BookWithYear, BookReview, Person, House, Room, Employee, Comment,
LessonEntry, WordEntry)
class PrefetchRelatedTests(TestCase):
@@ -618,3 +619,25 @@ class MultiDbTests(TestCase):
ages = ", ".join(str(a.authorwithage.age) for a in A.prefetch_related('authorwithage'))
self.assertEqual(ages, "50, 49")
class Ticket19607Tests(TestCase):
def setUp(self):
for id, name1, name2 in [
(1, 'einfach', 'simple'),
(2, 'schwierig', 'difficult'),
]:
LessonEntry.objects.create(id=id, name1=name1, name2=name2)
for id, lesson_entry_id, name in [
(1, 1, 'einfach'),
(2, 1, 'simple'),
(3, 2, 'schwierig'),
(4, 2, 'difficult'),
]:
WordEntry.objects.create(id=id, lesson_entry_id=lesson_entry_id, name=name)
def test_bug(self):
list(WordEntry.objects.prefetch_related('lesson_entry', 'lesson_entry__wordentry_set'))