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43809de79d
self-referential and circular relations. A lot of community debugging went into this fix, so thanks to bmurdock@gmail.com, Marek Kubica, ramiro, Michael Radziej (the last two giving test cases showing the problem) and James Bennett (who did the hard work to actually diagnose the true problem and fix it). git-svn-id: http://code.djangoproject.com/svn/django/trunk@4676 bcc190cf-cafb-0310-a4f2-bffc1f526a37
35 lines
1.1 KiB
Python
35 lines
1.1 KiB
Python
from django.db import models
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# If ticket #1578 ever slips back in, these models will not be able to be
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# created (the field names being lower-cased versions of their opposite
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# classes is important here).
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class First(models.Model):
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second = models.IntegerField()
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class Second(models.Model):
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first = models.ForeignKey(First, related_name = 'the_first')
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# Protect against repetition of #1839, #2415 and #2536.
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class Third(models.Model):
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name = models.CharField(maxlength=20)
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third = models.ForeignKey('self', null=True, related_name='child_set')
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class Parent(models.Model):
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name = models.CharField(maxlength=20)
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bestchild = models.ForeignKey('Child', null=True, related_name='favored_by')
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class Child(models.Model):
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name = models.CharField(maxlength=20)
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parent = models.ForeignKey(Parent)
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__test__ = {'API_TESTS':"""
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>>> Third.AddManipulator().save(dict(id='3', name='An example', another=None))
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<Third: Third object>
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>>> parent = Parent(name = 'fred')
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>>> parent.save()
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>>> Child.AddManipulator().save(dict(name='bam-bam', parent=parent.id))
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<Child: Child object>
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"""}
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