mirror of
https://github.com/django/django.git
synced 2024-11-29 14:46:18 +01:00
58 lines
1.3 KiB
Python
58 lines
1.3 KiB
Python
"""
|
|
Regression tests for proper working of ForeignKey(null=True).
|
|
"""
|
|
|
|
from django.db import models
|
|
from django.utils.encoding import python_2_unicode_compatible
|
|
|
|
|
|
class SystemDetails(models.Model):
|
|
details = models.TextField()
|
|
|
|
|
|
class SystemInfo(models.Model):
|
|
system_details = models.ForeignKey(SystemDetails)
|
|
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 = ('comment_text',)
|
|
|
|
def __str__(self):
|
|
return self.comment_text
|
|
|
|
# Ticket 15823
|
|
|
|
|
|
class Item(models.Model):
|
|
title = models.CharField(max_length=100)
|
|
|
|
|
|
class PropertyValue(models.Model):
|
|
label = models.CharField(max_length=100)
|
|
|
|
|
|
class Property(models.Model):
|
|
item = models.ForeignKey(Item, related_name='props')
|
|
key = models.CharField(max_length=100)
|
|
value = models.ForeignKey(PropertyValue, null=True)
|