mirror of
https://github.com/django/django.git
synced 2024-12-28 03:55:50 +00:00
50 lines
1.1 KiB
Python
50 lines
1.1 KiB
Python
"""
|
|
Tests for the order_with_respect_to Meta attribute.
|
|
"""
|
|
|
|
from django.db import models
|
|
|
|
|
|
class Question(models.Model):
|
|
text = models.CharField(max_length=200)
|
|
|
|
|
|
class Answer(models.Model):
|
|
text = models.CharField(max_length=200)
|
|
question = models.ForeignKey(Question, models.CASCADE)
|
|
|
|
class Meta:
|
|
order_with_respect_to = "question"
|
|
|
|
def __str__(self):
|
|
return self.text
|
|
|
|
|
|
class Post(models.Model):
|
|
title = models.CharField(max_length=200)
|
|
parent = models.ForeignKey(
|
|
"self", models.SET_NULL, related_name="children", null=True
|
|
)
|
|
|
|
class Meta:
|
|
order_with_respect_to = "parent"
|
|
|
|
def __str__(self):
|
|
return self.title
|
|
|
|
|
|
# order_with_respect_to points to a model with a OneToOneField primary key.
|
|
class Entity(models.Model):
|
|
pass
|
|
|
|
|
|
class Dimension(models.Model):
|
|
entity = models.OneToOneField("Entity", primary_key=True, on_delete=models.CASCADE)
|
|
|
|
|
|
class Component(models.Model):
|
|
dimension = models.ForeignKey("Dimension", on_delete=models.CASCADE)
|
|
|
|
class Meta:
|
|
order_with_respect_to = "dimension"
|