mirror of
https://github.com/django/django.git
synced 2024-12-28 20:16:19 +00:00
76 lines
1.9 KiB
Python
76 lines
1.9 KiB
Python
"""Models for test_natural.py"""
|
|
import uuid
|
|
|
|
from django.db import models
|
|
|
|
|
|
class NaturalKeyAnchorManager(models.Manager):
|
|
def get_by_natural_key(self, data):
|
|
return self.get(data=data)
|
|
|
|
|
|
class NaturalKeyAnchor(models.Model):
|
|
data = models.CharField(max_length=100, unique=True)
|
|
title = models.CharField(max_length=100, null=True)
|
|
|
|
objects = NaturalKeyAnchorManager()
|
|
|
|
def natural_key(self):
|
|
return (self.data,)
|
|
|
|
|
|
class FKDataNaturalKey(models.Model):
|
|
data = models.ForeignKey(NaturalKeyAnchor, models.SET_NULL, null=True)
|
|
|
|
|
|
class NaturalKeyThing(models.Model):
|
|
key = models.CharField(max_length=100, unique=True)
|
|
other_thing = models.ForeignKey(
|
|
"NaturalKeyThing", on_delete=models.CASCADE, null=True
|
|
)
|
|
other_things = models.ManyToManyField(
|
|
"NaturalKeyThing", related_name="thing_m2m_set"
|
|
)
|
|
|
|
class Manager(models.Manager):
|
|
def get_by_natural_key(self, key):
|
|
return self.get(key=key)
|
|
|
|
objects = Manager()
|
|
|
|
def natural_key(self):
|
|
return (self.key,)
|
|
|
|
def __str__(self):
|
|
return self.key
|
|
|
|
|
|
class NaturalPKWithDefault(models.Model):
|
|
id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
|
|
name = models.CharField(max_length=100, unique=True)
|
|
|
|
class Manager(models.Manager):
|
|
def get_by_natural_key(self, name):
|
|
return self.get(name=name)
|
|
|
|
objects = Manager()
|
|
|
|
def natural_key(self):
|
|
return (self.name,)
|
|
|
|
|
|
class FKAsPKNoNaturalKeyManager(models.Manager):
|
|
def get_by_natural_key(self, *args, **kwargs):
|
|
return super().get_by_natural_key(*args, **kwargs)
|
|
|
|
|
|
class FKAsPKNoNaturalKey(models.Model):
|
|
pk_fk = models.ForeignKey(
|
|
NaturalKeyAnchor, on_delete=models.CASCADE, primary_key=True
|
|
)
|
|
|
|
objects = FKAsPKNoNaturalKeyManager()
|
|
|
|
def natural_key(self):
|
|
raise NotImplementedError("This method was not expected to be called.")
|