mirror of https://github.com/django/django.git
337 lines
8.1 KiB
Python
337 lines
8.1 KiB
Python
from django.contrib.auth.models import User
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from django.db import models
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class Animal(models.Model):
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name = models.CharField(max_length=150)
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latin_name = models.CharField(max_length=150)
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count = models.IntegerField()
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weight = models.FloatField()
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# use a non-default name for the default manager
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specimens = models.Manager()
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def __str__(self):
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return self.name
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class Plant(models.Model):
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name = models.CharField(max_length=150)
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class Meta:
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# For testing when upper case letter in app name; regression for #4057
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db_table = "Fixtures_regress_plant"
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class Stuff(models.Model):
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name = models.CharField(max_length=20, null=True)
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owner = models.ForeignKey(User, models.SET_NULL, null=True)
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def __str__(self):
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return self.name + ' is owned by ' + str(self.owner)
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class Absolute(models.Model):
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name = models.CharField(max_length=40)
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class Parent(models.Model):
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name = models.CharField(max_length=10)
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class Meta:
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ordering = ('id',)
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class Child(Parent):
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data = models.CharField(max_length=10)
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# Models to regression test #7572, #20820
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class Channel(models.Model):
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name = models.CharField(max_length=255)
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class Article(models.Model):
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title = models.CharField(max_length=255)
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channels = models.ManyToManyField(Channel)
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class Meta:
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ordering = ('id',)
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# Subclass of a model with a ManyToManyField for test_ticket_20820
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class SpecialArticle(Article):
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pass
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# Models to regression test #22421
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class CommonFeature(Article):
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class Meta:
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abstract = True
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class Feature(CommonFeature):
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pass
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# Models to regression test #11428
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class Widget(models.Model):
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name = models.CharField(max_length=255)
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class Meta:
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ordering = ('name',)
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def __str__(self):
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return self.name
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class WidgetProxy(Widget):
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class Meta:
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proxy = True
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# Check for forward references in FKs and M2Ms with natural keys
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class TestManager(models.Manager):
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def get_by_natural_key(self, key):
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return self.get(name=key)
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class Store(models.Model):
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name = models.CharField(max_length=255, unique=True)
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main = models.ForeignKey('self', models.SET_NULL, null=True)
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objects = TestManager()
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class Meta:
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ordering = ('name',)
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def __str__(self):
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return self.name
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def natural_key(self):
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return (self.name,)
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class Person(models.Model):
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name = models.CharField(max_length=255, unique=True)
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objects = TestManager()
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class Meta:
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ordering = ('name',)
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def __str__(self):
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return self.name
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# Person doesn't actually have a dependency on store, but we need to define
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# one to test the behavior of the dependency resolution algorithm.
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def natural_key(self):
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return (self.name,)
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natural_key.dependencies = ['fixtures_regress.store']
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class Book(models.Model):
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name = models.CharField(max_length=255)
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author = models.ForeignKey(Person, models.CASCADE)
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stores = models.ManyToManyField(Store)
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class Meta:
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ordering = ('name',)
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def __str__(self):
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return '%s by %s (available at %s)' % (
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self.name,
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self.author.name,
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', '.join(s.name for s in self.stores.all())
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)
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class NKManager(models.Manager):
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def get_by_natural_key(self, data):
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return self.get(data=data)
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class NKChild(Parent):
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data = models.CharField(max_length=10, unique=True)
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objects = NKManager()
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def natural_key(self):
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return (self.data,)
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def __str__(self):
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return 'NKChild %s:%s' % (self.name, self.data)
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class RefToNKChild(models.Model):
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text = models.CharField(max_length=10)
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nk_fk = models.ForeignKey(NKChild, models.CASCADE, related_name='ref_fks')
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nk_m2m = models.ManyToManyField(NKChild, related_name='ref_m2ms')
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def __str__(self):
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return '%s: Reference to %s [%s]' % (
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self.text,
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self.nk_fk,
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', '.join(str(o) for o in self.nk_m2m.all())
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)
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# ome models with pathological circular dependencies
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class Circle1(models.Model):
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name = models.CharField(max_length=255, unique=True)
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def natural_key(self):
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return (self.name,)
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natural_key.dependencies = ['fixtures_regress.circle2']
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class Circle2(models.Model):
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name = models.CharField(max_length=255, unique=True)
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def natural_key(self):
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return (self.name,)
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natural_key.dependencies = ['fixtures_regress.circle1']
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class Circle3(models.Model):
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name = models.CharField(max_length=255, unique=True)
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def natural_key(self):
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return (self.name,)
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natural_key.dependencies = ['fixtures_regress.circle3']
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class Circle4(models.Model):
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name = models.CharField(max_length=255, unique=True)
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def natural_key(self):
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return (self.name,)
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natural_key.dependencies = ['fixtures_regress.circle5']
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class Circle5(models.Model):
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name = models.CharField(max_length=255, unique=True)
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def natural_key(self):
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return (self.name,)
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natural_key.dependencies = ['fixtures_regress.circle6']
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class Circle6(models.Model):
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name = models.CharField(max_length=255, unique=True)
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def natural_key(self):
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return (self.name,)
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natural_key.dependencies = ['fixtures_regress.circle4']
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class ExternalDependency(models.Model):
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name = models.CharField(max_length=255, unique=True)
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def natural_key(self):
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return (self.name,)
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natural_key.dependencies = ['fixtures_regress.book']
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# Model for regression test of #11101
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class Thingy(models.Model):
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name = models.CharField(max_length=255)
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class M2MToSelf(models.Model):
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parent = models.ManyToManyField("self", blank=True)
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class BaseNKModel(models.Model):
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"""
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Base model with a natural_key and a manager with `get_by_natural_key`
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"""
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data = models.CharField(max_length=20, unique=True)
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objects = NKManager()
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class Meta:
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abstract = True
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def __str__(self):
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return self.data
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def natural_key(self):
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return (self.data,)
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class M2MSimpleA(BaseNKModel):
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b_set = models.ManyToManyField("M2MSimpleB")
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class M2MSimpleB(BaseNKModel):
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pass
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class M2MSimpleCircularA(BaseNKModel):
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b_set = models.ManyToManyField("M2MSimpleCircularB")
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class M2MSimpleCircularB(BaseNKModel):
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a_set = models.ManyToManyField("M2MSimpleCircularA")
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class M2MComplexA(BaseNKModel):
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b_set = models.ManyToManyField("M2MComplexB", through="M2MThroughAB")
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class M2MComplexB(BaseNKModel):
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pass
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class M2MThroughAB(BaseNKModel):
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a = models.ForeignKey(M2MComplexA, models.CASCADE)
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b = models.ForeignKey(M2MComplexB, models.CASCADE)
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class M2MComplexCircular1A(BaseNKModel):
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b_set = models.ManyToManyField("M2MComplexCircular1B",
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through="M2MCircular1ThroughAB")
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class M2MComplexCircular1B(BaseNKModel):
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c_set = models.ManyToManyField("M2MComplexCircular1C",
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through="M2MCircular1ThroughBC")
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class M2MComplexCircular1C(BaseNKModel):
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a_set = models.ManyToManyField("M2MComplexCircular1A",
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through="M2MCircular1ThroughCA")
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class M2MCircular1ThroughAB(BaseNKModel):
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a = models.ForeignKey(M2MComplexCircular1A, models.CASCADE)
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b = models.ForeignKey(M2MComplexCircular1B, models.CASCADE)
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class M2MCircular1ThroughBC(BaseNKModel):
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b = models.ForeignKey(M2MComplexCircular1B, models.CASCADE)
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c = models.ForeignKey(M2MComplexCircular1C, models.CASCADE)
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class M2MCircular1ThroughCA(BaseNKModel):
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c = models.ForeignKey(M2MComplexCircular1C, models.CASCADE)
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a = models.ForeignKey(M2MComplexCircular1A, models.CASCADE)
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class M2MComplexCircular2A(BaseNKModel):
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b_set = models.ManyToManyField("M2MComplexCircular2B",
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through="M2MCircular2ThroughAB")
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class M2MComplexCircular2B(BaseNKModel):
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def natural_key(self):
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return (self.data,)
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# Fake the dependency for a circularity
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natural_key.dependencies = ["fixtures_regress.M2MComplexCircular2A"]
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class M2MCircular2ThroughAB(BaseNKModel):
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a = models.ForeignKey(M2MComplexCircular2A, models.CASCADE)
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b = models.ForeignKey(M2MComplexCircular2B, models.CASCADE)
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