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"""Models for test_natural.py"""
import uuid
from django.contrib.auth.base_user import AbstractBaseUser
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.")
class SubclassNaturalKeyOptOutUser(AbstractBaseUser):
email = models.EmailField(unique=False, null=True, blank=True)
USERNAME_FIELD = "email"
def natural_key(self):
return ()
class PostToOptOutSubclassUser(models.Model):
author = models.ForeignKey(SubclassNaturalKeyOptOutUser, on_delete=models.CASCADE)
title = models.CharField(max_length=100)
subscribers = models.ManyToManyField(
SubclassNaturalKeyOptOutUser, related_name="subscribed_posts", blank=True
)
class NaturalKeyWithNullableFieldManager(models.Manager):
def get_by_natural_key(self, name, optional_id):
return self.get(name=name, optional_id=optional_id)
class NaturalKeyWithNullableField(models.Model):
name = models.CharField(max_length=100)
optional_id = models.CharField(max_length=100, null=True, blank=True)
objects = NaturalKeyWithNullableFieldManager()
class Meta:
unique_together = [["name", "optional_id"]]
def natural_key(self):
return (self.name, self.optional_id)
class FKToNaturalKeyWithNullable(models.Model):
ref = models.ForeignKey(
NaturalKeyWithNullableField, on_delete=models.CASCADE, null=True
)
refs = models.ManyToManyField(
NaturalKeyWithNullableField, related_name="m2m_referrers"
)
data = models.CharField(max_length=100, default="")
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