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"""
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"
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