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Refs #31657 -- Added test for ordering by self-referential ForeignKeys.
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@ -18,6 +18,7 @@ from django.db import models
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class Author(models.Model):
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class Author(models.Model):
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name = models.CharField(max_length=63, null=True, blank=True)
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name = models.CharField(max_length=63, null=True, blank=True)
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editor = models.ForeignKey('self', models.CASCADE, null=True)
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class Meta:
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class Meta:
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ordering = ('-pk',)
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ordering = ('-pk',)
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@ -343,6 +343,17 @@ class OrderingTests(TestCase):
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attrgetter("headline")
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attrgetter("headline")
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)
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)
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def test_order_by_self_referential_fk(self):
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self.a1.author = Author.objects.create(editor=self.author_1)
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self.a1.save()
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self.a2.author = Author.objects.create(editor=self.author_2)
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self.a2.save()
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self.assertQuerysetEqual(
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Article.objects.filter(author__isnull=False).order_by('author__editor'),
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['Article 2', 'Article 1'],
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attrgetter('headline'),
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)
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def test_order_by_f_expression(self):
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def test_order_by_f_expression(self):
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self.assertQuerysetEqual(
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self.assertQuerysetEqual(
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Article.objects.order_by(F('headline')), [
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Article.objects.order_by(F('headline')), [
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