mirror of
https://github.com/django/django.git
synced 2024-11-22 03:18:31 +01:00
45 lines
1.2 KiB
Python
45 lines
1.2 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
|
|
unexpected results
|
|
|
|
"""
|
|
from django.db import models
|
|
|
|
|
|
# The first two models represent a very simple null FK ordering case.
|
|
class Author(models.Model):
|
|
name = models.CharField(max_length=150)
|
|
|
|
|
|
class Article(models.Model):
|
|
title = models.CharField(max_length=150)
|
|
author = models.ForeignKey(Author, models.SET_NULL, null=True)
|
|
|
|
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, models.CASCADE)
|
|
forum_name = models.CharField(max_length=32)
|
|
|
|
|
|
class Post(models.Model):
|
|
forum = models.ForeignKey(Forum, models.SET_NULL, null=True)
|
|
title = models.CharField(max_length=32)
|
|
|
|
|
|
class Comment(models.Model):
|
|
post = models.ForeignKey(Post, models.SET_NULL, null=True)
|
|
comment_text = models.CharField(max_length=250)
|
|
|
|
class Meta:
|
|
ordering = ['post__forum__system_info__system_name', 'comment_text']
|