mirror of
https://github.com/django/django.git
synced 2025-10-25 22:56:12 +00:00
2c1d6a80b3
git-svn-id: http://code.djangoproject.com/svn/django/trunk@7783 bcc190cf-cafb-0310-a4f2-bffc1f526a37
48 lines
1.2 KiB
Python
48 lines
1.2 KiB
Python
"""
|
|
Regression tests for the interaction between model inheritance and
|
|
select_related().
|
|
"""
|
|
|
|
from django.db import models
|
|
|
|
class Place(models.Model):
|
|
name = models.CharField(max_length=50)
|
|
|
|
class Meta:
|
|
ordering = ('name',)
|
|
|
|
def __unicode__(self):
|
|
return u"%s the place" % self.name
|
|
|
|
class Restaurant(Place):
|
|
serves_sushi = models.BooleanField()
|
|
serves_steak = models.BooleanField()
|
|
|
|
def __unicode__(self):
|
|
return u"%s the restaurant" % self.name
|
|
|
|
class Person(models.Model):
|
|
name = models.CharField(max_length=50)
|
|
favorite_restaurant = models.ForeignKey(Restaurant)
|
|
|
|
def __unicode__(self):
|
|
return self.name
|
|
|
|
__test__ = {'API_TESTS':"""
|
|
Regression test for #7246
|
|
|
|
>>> r1 = Restaurant.objects.create(name="Nobu", serves_sushi=True, serves_steak=False)
|
|
>>> r2 = Restaurant.objects.create(name="Craft", serves_sushi=False, serves_steak=True)
|
|
>>> p1 = Person.objects.create(name="John", favorite_restaurant=r1)
|
|
>>> p2 = Person.objects.create(name="Jane", favorite_restaurant=r2)
|
|
|
|
>>> Person.objects.order_by('name').select_related()
|
|
[<Person: Jane>, <Person: John>]
|
|
|
|
>>> jane = Person.objects.order_by('name').select_related('favorite_restaurant')[0]
|
|
>>> jane.favorite_restaurant.name
|
|
u'Craft'
|
|
|
|
"""}
|
|
|