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60 lines
1.6 KiB
Python
60 lines
1.6 KiB
Python
"""
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Regression tests for proper working of ForeignKey(null=True). Tests these bugs:
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* #7512: including a nullable foreign key reference in Meta ordering has
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unexpected results
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"""
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from __future__ import unicode_literals
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from django.db import models
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from django.utils.encoding import python_2_unicode_compatible
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# The first two models represent a very simple null FK ordering case.
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class Author(models.Model):
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name = models.CharField(max_length=150)
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@python_2_unicode_compatible
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class Article(models.Model):
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title = models.CharField(max_length=150)
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author = models.ForeignKey(Author, models.SET_NULL, null=True)
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def __str__(self):
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return 'Article titled: %s' % (self.title, )
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class Meta:
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ordering = ['author__name', ]
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# These following 4 models represent a far more complex ordering case.
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class SystemInfo(models.Model):
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system_name = models.CharField(max_length=32)
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class Forum(models.Model):
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system_info = models.ForeignKey(SystemInfo, models.CASCADE)
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forum_name = models.CharField(max_length=32)
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@python_2_unicode_compatible
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class Post(models.Model):
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forum = models.ForeignKey(Forum, models.SET_NULL, null=True)
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title = models.CharField(max_length=32)
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def __str__(self):
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return self.title
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@python_2_unicode_compatible
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class Comment(models.Model):
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post = models.ForeignKey(Post, models.SET_NULL, null=True)
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comment_text = models.CharField(max_length=250)
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class Meta:
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ordering = ['post__forum__system_info__system_name', 'comment_text']
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def __str__(self):
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return self.comment_text
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