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import datetime
import uuid
from django.db import models
class Author(models.Model):
name = models.CharField(max_length=100)
class Meta:
ordering = ("name",)
def __str__(self):
return self.name
class BetterAuthor(Author):
write_speed = models.IntegerField()
class Book(models.Model):
author = models.ForeignKey(Author, models.CASCADE)
title = models.CharField(max_length=100)
class Meta:
unique_together = (("author", "title"),)
ordering = ["id"]
def __str__(self):
return self.title
def clean(self):
# Ensure author is always accessible in clean method
assert self.author.name is not None
class BookWithCustomPK(models.Model):
my_pk = models.DecimalField(max_digits=5, decimal_places=0, primary_key=True)
author = models.ForeignKey(Author, models.CASCADE)
title = models.CharField(max_length=100)
def __str__(self):
return "%s: %s" % (self.my_pk, self.title)
class Editor(models.Model):
name = models.CharField(max_length=100)
class BookWithOptionalAltEditor(models.Model):
author = models.ForeignKey(Author, models.CASCADE)
# Optional secondary author
alt_editor = models.ForeignKey(Editor, models.SET_NULL, blank=True, null=True)
title = models.CharField(max_length=100)
class Meta:
unique_together = (("author", "title", "alt_editor"),)
def __str__(self):
return self.title
class AlternateBook(Book):
notes = models.CharField(max_length=100)
def __str__(self):
return "%s - %s" % (self.title, self.notes)
class AuthorMeeting(models.Model):
name = models.CharField(max_length=100)
authors = models.ManyToManyField(Author)
created = models.DateField(editable=False)
def __str__(self):
return self.name
class CustomPrimaryKey(models.Model):
my_pk = models.CharField(max_length=10, primary_key=True)
some_field = models.CharField(max_length=100)
# models for inheritance tests.
class Place(models.Model):
name = models.CharField(max_length=50)
city = models.CharField(max_length=50)
def __str__(self):
return self.name
class Owner(models.Model):
auto_id = models.AutoField(primary_key=True)
name = models.CharField(max_length=100)
place = models.ForeignKey(Place, models.CASCADE)
def __str__(self):
return "%s at %s" % (self.name, self.place)
class Location(models.Model):
place = models.ForeignKey(Place, models.CASCADE, unique=True)
# this is purely for testing the data doesn't matter here :)
lat = models.CharField(max_length=100)
lon = models.CharField(max_length=100)
class OwnerProfile(models.Model):
owner = models.OneToOneField(Owner, models.CASCADE, primary_key=True)
age = models.PositiveIntegerField()
def __str__(self):
return "%s is %d" % (self.owner.name, self.age)
class Restaurant(Place):
serves_pizza = models.BooleanField(default=False)
class Product(models.Model):
slug = models.SlugField(unique=True)
def __str__(self):
return self.slug
class Price(models.Model):
price = models.DecimalField(max_digits=10, decimal_places=2)
quantity = models.PositiveIntegerField()
class Meta:
unique_together = (("price", "quantity"),)
def __str__(self):
return "%s for %s" % (self.quantity, self.price)
class MexicanRestaurant(Restaurant):
serves_tacos = models.BooleanField(default=False)
class ClassyMexicanRestaurant(MexicanRestaurant):
the_restaurant = models.OneToOneField(
MexicanRestaurant, models.CASCADE, parent_link=True, primary_key=True
)
tacos_are_yummy = models.BooleanField(default=False)
# models for testing unique_together validation when a fk is involved and
# using inlineformset_factory.
class Repository(models.Model):
name = models.CharField(max_length=25)
def __str__(self):
return self.name
class Revision(models.Model):
repository = models.ForeignKey(Repository, models.CASCADE)
revision = models.CharField(max_length=40)
class Meta:
unique_together = (("repository", "revision"),)
def __str__(self):
return "%s (%s)" % (self.revision, str(self.repository))
# models for testing callable defaults (see bug #7975). If you define a model
# with a callable default value, you cannot rely on the initial value in a
# form.
class Person(models.Model):
name = models.CharField(max_length=128)
class Membership(models.Model):
person = models.ForeignKey(Person, models.CASCADE)
date_joined = models.DateTimeField(default=datetime.datetime.now)
karma = models.IntegerField()
# models for testing a null=True fk to a parent
class Team(models.Model):
name = models.CharField(max_length=100)
class Player(models.Model):
team = models.ForeignKey(Team, models.SET_NULL, null=True)
name = models.CharField(max_length=100)
def __str__(self):
return self.name
# Models for testing custom ModelForm save methods in formsets and inline formsets
class Poet(models.Model):
name = models.CharField(max_length=100)
def __str__(self):
return self.name
class Poem(models.Model):
poet = models.ForeignKey(Poet, models.CASCADE)
name = models.CharField(max_length=100)
def __str__(self):
return self.name
class Post(models.Model):
title = models.CharField(max_length=50, unique_for_date="posted", blank=True)
slug = models.CharField(max_length=50, unique_for_year="posted", blank=True)
subtitle = models.CharField(max_length=50, unique_for_month="posted", blank=True)
posted = models.DateField()
def __str__(self):
return self.title
# Models for testing UUID primary keys
class UUIDPKParent(models.Model):
uuid = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
name = models.CharField(max_length=255)
class UUIDPKChild(models.Model):
uuid = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
name = models.CharField(max_length=255)
parent = models.ForeignKey(UUIDPKParent, models.CASCADE)
class ChildWithEditablePK(models.Model):
name = models.CharField(max_length=255, primary_key=True)
parent = models.ForeignKey(UUIDPKParent, models.CASCADE)
class AutoPKChildOfUUIDPKParent(models.Model):
name = models.CharField(max_length=255)
parent = models.ForeignKey(UUIDPKParent, models.CASCADE)
class AutoPKParent(models.Model):
name = models.CharField(max_length=255)
class UUIDPKChildOfAutoPKParent(models.Model):
uuid = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
name = models.CharField(max_length=255)
parent = models.ForeignKey(AutoPKParent, models.CASCADE)
class ParentWithUUIDAlternateKey(models.Model):
uuid = models.UUIDField(unique=True, default=uuid.uuid4, editable=False)
name = models.CharField(max_length=50)
class ChildRelatedViaAK(models.Model):
name = models.CharField(max_length=255)
parent = models.ForeignKey(
ParentWithUUIDAlternateKey, models.CASCADE, to_field="uuid"
)
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