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Fixed #28335 -- Allowed query expressions in Meta.ordering.

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Dima Kudosh 2017-06-25 21:17:13 +03:00 • committed by Tim Graham
parent 3d2c3905a6
commit 093fd479d6
5 changed files with 37 additions and 6 deletions
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12
tests/ordering/tests.py
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@ -5,7 +5,7 @@ from django.db.models import F
from django.db.models.functions import Upper
from django.test import TestCase
from .models import Article, Author, Reference
from .models import Article, Author, OrderedByFArticle, Reference
class OrderingTests(TestCase):
@ -368,3 +368,13 @@ class OrderingTests(TestCase):
r1 = Reference.objects.create(article_id=self.a1.pk)
r2 = Reference.objects.create(article_id=self.a2.pk)
self.assertSequenceEqual(Reference.objects.all(), [r2, r1])
def test_default_ordering_by_f_expression(self):
"""F expressions can be used in Meta.ordering."""
articles = OrderedByFArticle.objects.all()
articles.filter(headline='Article 2').update(author=self.author_2)
articles.filter(headline='Article 3').update(author=self.author_1)
self.assertQuerysetEqual(
articles, ['Article 1', 'Article 4', 'Article 3', 'Article 2'],
attrgetter('headline')
)