mirror of
https://github.com/django/django.git
synced 2024-12-26 11:06:07 +00:00
56 lines
1.5 KiB
Python
56 lines
1.5 KiB
Python
"""
|
|
Regression tests for proper working of ForeignKey(null=True). Tests these bugs:
|
|
|
|
* #7512: including a nullable foreign key reference in Meta ordering has un
|
|
xpected results
|
|
|
|
"""
|
|
from __future__ import unicode_literals
|
|
|
|
from django.db import models
|
|
from django.utils.encoding import python_2_unicode_compatible
|
|
|
|
|
|
# The first two models represent a very simple null FK ordering case.
|
|
class Author(models.Model):
|
|
name = models.CharField(max_length=150)
|
|
|
|
@python_2_unicode_compatible
|
|
class Article(models.Model):
|
|
title = models.CharField(max_length=150)
|
|
author = models.ForeignKey(Author, null=True)
|
|
|
|
def __str__(self):
|
|
return 'Article titled: %s' % (self.title, )
|
|
|
|
class Meta:
|
|
ordering = ['author__name', ]
|
|
|
|
|
|
# These following 4 models represent a far more complex ordering case.
|
|
class SystemInfo(models.Model):
|
|
system_name = models.CharField(max_length=32)
|
|
|
|
class Forum(models.Model):
|
|
system_info = models.ForeignKey(SystemInfo)
|
|
forum_name = models.CharField(max_length=32)
|
|
|
|
@python_2_unicode_compatible
|
|
class Post(models.Model):
|
|
forum = models.ForeignKey(Forum, null=True)
|
|
title = models.CharField(max_length=32)
|
|
|
|
def __str__(self):
|
|
return self.title
|
|
|
|
@python_2_unicode_compatible
|
|
class Comment(models.Model):
|
|
post = models.ForeignKey(Post, null=True)
|
|
comment_text = models.CharField(max_length=250)
|
|
|
|
class Meta:
|
|
ordering = ['post__forum__system_info__system_name', 'comment_text']
|
|
|
|
def __str__(self):
|
|
return self.comment_text
|