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git-svn-id: http://code.djangoproject.com/svn/django/trunk@13934 bcc190cf-cafb-0310-a4f2-bffc1f526a37
34 lines
847 B
Python
34 lines
847 B
Python
"""
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Regression tests for proper working of ForeignKey(null=True).
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"""
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from django.db import models
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class SystemDetails(models.Model):
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details = models.TextField()
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class SystemInfo(models.Model):
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system_details = models.ForeignKey(SystemDetails)
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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)
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forum_name = models.CharField(max_length=32)
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class Post(models.Model):
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forum = models.ForeignKey(Forum, null=True)
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title = models.CharField(max_length=32)
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def __unicode__(self):
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return self.title
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class Comment(models.Model):
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post = models.ForeignKey(Post, null=True)
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comment_text = models.CharField(max_length=250)
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class Meta:
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ordering = ('comment_text',)
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def __unicode__(self):
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return self.comment_text
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