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Fixed #24654 -- Based ordering circular references detection on columns.

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Thanks to Elmar Bucher for the report and Tim for the review.
This commit is contained in:
Simon Charette 2015-04-19 02:06:17 -04:00
parent ffe83d16bd
commit b44ed404c7
3 changed files with 33 additions and 2 deletions
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19
tests/ordering/tests.py
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@ -6,7 +6,7 @@ from operator import attrgetter
from django.db.models import F
from django.test import TestCase
from .models import Article, Author
from .models import Article, Author, Reference
class OrderingTests(TestCase):
@ -307,3 +307,20 @@ class OrderingTests(TestCase):
],
attrgetter("headline")
)
def test_related_ordering_duplicate_table_reference(self):
"""
An ordering referencing a model with an ordering referencing a model
multiple time no circular reference should be detected (#24654).
"""
first_author = Author.objects.create()
second_author = Author.objects.create()
self.a1.author = first_author
self.a1.second_author = second_author
self.a1.save()
self.a2.author = second_author
self.a2.second_author = first_author
self.a2.save()
r1 = Reference.objects.create(article_id=self.a1.pk)
r2 = Reference.objects.create(article_id=self.a2.pk)
self.assertQuerysetEqual(Reference.objects.all(), [r2, r1], lambda x: x)