"""

Tests for the update() queryset method that allows in-place, multi-object

updates.

"""

from django.db import models

class DataPoint(models.Model):

    name = models.CharField(max_length=20)

    value = models.CharField(max_length=20)

    another_value = models.CharField(max_length=20, blank=True)

class RelatedPoint(models.Model):

    name = models.CharField(max_length=20)

    data = models.ForeignKey(DataPoint, models.CASCADE)

class A(models.Model):

    x = models.IntegerField(default=10)

class B(models.Model):

    a = models.ForeignKey(A, models.CASCADE)

    y = models.IntegerField(default=10)

class C(models.Model):

    y = models.IntegerField(default=10)

class D(C):

    a = models.ForeignKey(A, models.CASCADE)

class Foo(models.Model):

    target = models.CharField(max_length=10, unique=True)

class Bar(models.Model):

    foo = models.ForeignKey(Foo, models.CASCADE, to_field="target")

    m2m_foo = models.ManyToManyField(Foo, related_name="m2m_foo")

    x = models.IntegerField(default=0)

class UniqueNumber(models.Model):

    number = models.IntegerField(unique=True)

class UniqueNumberChild(UniqueNumber):

    pass