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81 lines
2.4 KiB
Python
81 lines
2.4 KiB
Python
from django.contrib.auth import models as auth
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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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# No related name is needed here, since symmetrical relations are not
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# explicitly reversible.
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@python_2_unicode_compatible
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class SelfRefer(models.Model):
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name = models.CharField(max_length=10)
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references = models.ManyToManyField('self')
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related = models.ManyToManyField('self')
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def __str__(self):
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return self.name
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@python_2_unicode_compatible
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class Tag(models.Model):
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name = models.CharField(max_length=10)
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def __str__(self):
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return self.name
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# Regression for #11956 -- a many to many to the base class
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@python_2_unicode_compatible
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class TagCollection(Tag):
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tags = models.ManyToManyField(Tag, related_name='tag_collections')
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def __str__(self):
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return self.name
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# A related_name is required on one of the ManyToManyField entries here because
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# they are both addressable as reverse relations from Tag.
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@python_2_unicode_compatible
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class Entry(models.Model):
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name = models.CharField(max_length=10)
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topics = models.ManyToManyField(Tag)
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related = models.ManyToManyField(Tag, related_name="similar")
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def __str__(self):
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return self.name
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# Two models both inheriting from a base model with a self-referential m2m field
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class SelfReferChild(SelfRefer):
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pass
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class SelfReferChildSibling(SelfRefer):
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pass
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# Many-to-Many relation between models, where one of the PK's isn't an Autofield
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class Line(models.Model):
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name = models.CharField(max_length=100)
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class Worksheet(models.Model):
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id = models.CharField(primary_key=True, max_length=100)
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lines = models.ManyToManyField(Line, blank=True, null=True)
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# Regression for #11226 -- A model with the same name that another one to
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# which it has a m2m relation. This shouldn't cause a name clash between
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# the automatically created m2m intermediary table FK field names when
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# running migrate
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class User(models.Model):
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name = models.CharField(max_length=30)
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friends = models.ManyToManyField(auth.User)
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class BadModelWithSplit(models.Model):
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name = models.CharField(max_length=1)
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def split(self):
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raise RuntimeError('split should not be called')
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class Meta:
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abstract = True
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class RegressionModelSplit(BadModelWithSplit):
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"""
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Model with a split method should not cause an error in add_lazy_relation
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"""
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others = models.ManyToManyField('self')
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