1 files changed, 237 insertions, 0 deletions
diff --git a/tests/fixtures_regress/models.py b/tests/fixtures_regress/models.py
new file mode 100644
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+++ b/tests/fixtures_regress/models.py
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+from __future__ import absolute_import, unicode_literals
+
+from django.contrib.auth.models import User
+from django.db import models
+from django.utils import six
+from django.utils.encoding import python_2_unicode_compatible
+
+
+@python_2_unicode_compatible
+class Animal(models.Model):
+    name = models.CharField(max_length=150)
+    latin_name = models.CharField(max_length=150)
+    count = models.IntegerField()
+    weight = models.FloatField()
+
+    # use a non-default name for the default manager
+    specimens = models.Manager()
+
+    def __str__(self):
+        return self.name
+
+
+class Plant(models.Model):
+    name = models.CharField(max_length=150)
+
+    class Meta:
+        # For testing when upper case letter in app name; regression for #4057
+        db_table = "Fixtures_regress_plant"
+
+@python_2_unicode_compatible
+class Stuff(models.Model):
+    name = models.CharField(max_length=20, null=True)
+    owner = models.ForeignKey(User, null=True)
+
+    def __str__(self):
+        return six.text_type(self.name) + ' is owned by ' + six.text_type(self.owner)
+
+
+class Absolute(models.Model):
+    name = models.CharField(max_length=40)
+
+    load_count = 0
+
+    def __init__(self, *args, **kwargs):
+        super(Absolute, self).__init__(*args, **kwargs)
+        Absolute.load_count += 1
+
+
+class Parent(models.Model):
+    name = models.CharField(max_length=10)
+
+    class Meta:
+        ordering = ('id',)
+
+
+class Child(Parent):
+    data = models.CharField(max_length=10)
+
+
+# Models to regression test #7572
+class Channel(models.Model):
+    name = models.CharField(max_length=255)
+
+
+class Article(models.Model):
+    title = models.CharField(max_length=255)
+    channels = models.ManyToManyField(Channel)
+
+    class Meta:
+        ordering = ('id',)
+
+
+# Models to regression test #11428
+@python_2_unicode_compatible
+class Widget(models.Model):
+    name = models.CharField(max_length=255)
+
+    class Meta:
+        ordering = ('name',)
+
+    def __str__(self):
+        return self.name
+
+
+class WidgetProxy(Widget):
+    class Meta:
+        proxy = True
+
+
+# Check for forward references in FKs and M2Ms with natural keys
+class TestManager(models.Manager):
+    def get_by_natural_key(self, key):
+        return self.get(name=key)
+
+
+@python_2_unicode_compatible
+class Store(models.Model):
+    objects = TestManager()
+    name = models.CharField(max_length=255)
+    main = models.ForeignKey('self', null=True)
+
+    class Meta:
+        ordering = ('name',)
+
+    def __str__(self):
+        return self.name
+
+    def natural_key(self):
+        return (self.name,)
+
+
+@python_2_unicode_compatible
+class Person(models.Model):
+    objects = TestManager()
+    name = models.CharField(max_length=255)
+
+    class Meta:
+        ordering = ('name',)
+
+    def __str__(self):
+        return self.name
+
+    # Person doesn't actually have a dependency on store, but we need to define
+    # one to test the behavior of the dependency resolution algorithm.
+    def natural_key(self):
+        return (self.name,)
+    natural_key.dependencies = ['fixtures_regress.store']
+
+
+@python_2_unicode_compatible
+class Book(models.Model):
+    name = models.CharField(max_length=255)
+    author = models.ForeignKey(Person)
+    stores = models.ManyToManyField(Store)
+
+    class Meta:
+        ordering = ('name',)
+
+    def __str__(self):
+        return '%s by %s (available at %s)' % (
+            self.name,
+            self.author.name,
+            ', '.join(s.name for s in self.stores.all())
+        )
+
+
+class NKManager(models.Manager):
+    def get_by_natural_key(self, data):
+        return self.get(data=data)
+
+
+@python_2_unicode_compatible
+class NKChild(Parent):
+    data = models.CharField(max_length=10, unique=True)
+    objects = NKManager()
+
+    def natural_key(self):
+        return self.data
+
+    def __str__(self):
+        return 'NKChild %s:%s' % (self.name, self.data)
+
+
+@python_2_unicode_compatible
+class RefToNKChild(models.Model):
+    text = models.CharField(max_length=10)
+    nk_fk = models.ForeignKey(NKChild, related_name='ref_fks')
+    nk_m2m = models.ManyToManyField(NKChild, related_name='ref_m2ms')
+
+    def __str__(self):
+        return '%s: Reference to %s [%s]' % (
+            self.text,
+            self.nk_fk,
+            ', '.join(str(o) for o in self.nk_m2m.all())
+        )
+
+
+# ome models with pathological circular dependencies
+class Circle1(models.Model):
+    name = models.CharField(max_length=255)
+
+    def natural_key(self):
+        return self.name
+    natural_key.dependencies = ['fixtures_regress.circle2']
+
+
+class Circle2(models.Model):
+    name = models.CharField(max_length=255)
+
+    def natural_key(self):
+        return self.name
+    natural_key.dependencies = ['fixtures_regress.circle1']
+
+
+class Circle3(models.Model):
+    name = models.CharField(max_length=255)
+
+    def natural_key(self):
+        return self.name
+    natural_key.dependencies = ['fixtures_regress.circle3']
+
+
+class Circle4(models.Model):
+    name = models.CharField(max_length=255)
+
+    def natural_key(self):
+        return self.name
+    natural_key.dependencies = ['fixtures_regress.circle5']
+
+
+class Circle5(models.Model):
+    name = models.CharField(max_length=255)
+
+    def natural_key(self):
+        return self.name
+    natural_key.dependencies = ['fixtures_regress.circle6']
+
+
+class Circle6(models.Model):
+    name = models.CharField(max_length=255)
+
+    def natural_key(self):
+        return self.name
+    natural_key.dependencies = ['fixtures_regress.circle4']
+
+
+class ExternalDependency(models.Model):
+    name = models.CharField(max_length=255)
+
+    def natural_key(self):
+        return self.name
+    natural_key.dependencies = ['fixtures_regress.book']
+
+
+# Model for regression test of #11101
+class Thingy(models.Model):
+    name = models.CharField(max_length=255)