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