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[3.0.x] Fixed #13296 -- Fixed ordering by Options.order_with_respect_to after deleting objects.

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Thanks Simon Meers for the original patch.

Backport of f97bbad908 from master
This commit is contained in:
Hasan Ramezani
2019-08-30 10:28:18 +02:00
committed by Mariusz Felisiak
parent 368832e803
commit 2362f27265
2 changed files with 24 additions and 4 deletions
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14
tests/order_with_respect_to/base_tests.py
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@@ -87,3 +87,17 @@ class BaseOrderWithRespectToTests:
self.Post.objects.create(title="2.1", parent=p2)
p1_3 = self.Post.objects.create(title="1.3", parent=p1)
self.assertSequenceEqual(p1.get_post_order(), [p1_1.pk, p1_2.pk, p1_3.pk])
def test_delete_and_insert(self):
q1 = self.Question.objects.create(text='What is your favorite color?')
q2 = self.Question.objects.create(text='What color is it?')
a1 = self.Answer.objects.create(text='Blue', question=q1)
a2 = self.Answer.objects.create(text='Red', question=q1)
a3 = self.Answer.objects.create(text='Green', question=q1)
a4 = self.Answer.objects.create(text='Yellow', question=q1)
self.assertSequenceEqual(q1.answer_set.all(), [a1, a2, a3, a4])
a3.question = q2
a3.save()
a1.delete()
new_answer = self.Answer.objects.create(text='Black', question=q1)
self.assertSequenceEqual(q1.answer_set.all(), [a2, a4, new_answer])