166 lines
4.1 KiB
Python
166 lines
4.1 KiB
Python
from django.contrib.contenttypes.models import ContentType
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from django.contrib.contenttypes import generic
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from django.db import models
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## Basic tests
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class Author(models.Model):
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name = models.CharField(max_length=50, unique=True)
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first_book = models.ForeignKey('Book', related_name='first_time_authors')
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favorite_authors = models.ManyToManyField(
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'self', through='FavoriteAuthors', symmetrical=False, related_name='favors_me')
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def __unicode__(self):
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return self.name
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class Meta:
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ordering = ['id']
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class AuthorWithAge(Author):
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author = models.OneToOneField(Author, parent_link=True)
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age = models.IntegerField()
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class FavoriteAuthors(models.Model):
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author = models.ForeignKey(Author, to_field='name', related_name='i_like')
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likes_author = models.ForeignKey(Author, to_field='name', related_name='likes_me')
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class Meta:
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ordering = ['id']
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class AuthorAddress(models.Model):
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author = models.ForeignKey(Author, to_field='name', related_name='addresses')
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address = models.TextField()
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class Meta:
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ordering = ['id']
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def __unicode__(self):
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return self.address
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class Book(models.Model):
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title = models.CharField(max_length=255)
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authors = models.ManyToManyField(Author, related_name='books')
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def __unicode__(self):
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return self.title
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class Meta:
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ordering = ['id']
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class BookWithYear(Book):
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book = models.OneToOneField(Book, parent_link=True)
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published_year = models.IntegerField()
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aged_authors = models.ManyToManyField(
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AuthorWithAge, related_name='books_with_year')
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class Reader(models.Model):
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name = models.CharField(max_length=50)
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books_read = models.ManyToManyField(Book, related_name='read_by')
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def __unicode__(self):
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return self.name
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class Meta:
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ordering = ['id']
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## Models for default manager tests
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class Qualification(models.Model):
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name = models.CharField(max_length=10)
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class Meta:
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ordering = ['id']
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class TeacherManager(models.Manager):
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def get_query_set(self):
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return super(TeacherManager, self).get_query_set().prefetch_related('qualifications')
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class Teacher(models.Model):
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name = models.CharField(max_length=50)
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qualifications = models.ManyToManyField(Qualification)
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objects = TeacherManager()
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def __unicode__(self):
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return "%s (%s)" % (self.name, ", ".join(q.name for q in self.qualifications.all()))
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class Meta:
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ordering = ['id']
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class Department(models.Model):
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name = models.CharField(max_length=50)
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teachers = models.ManyToManyField(Teacher)
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class Meta:
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ordering = ['id']
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## Generic relation tests
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class TaggedItem(models.Model):
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tag = models.SlugField()
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content_type = models.ForeignKey(ContentType, related_name="taggeditem_set2")
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object_id = models.PositiveIntegerField()
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content_object = generic.GenericForeignKey('content_type', 'object_id')
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def __unicode__(self):
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return self.tag
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class Bookmark(models.Model):
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url = models.URLField()
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tags = generic.GenericRelation(TaggedItem)
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## Models for lookup ordering tests
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class House(models.Model):
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address = models.CharField(max_length=255)
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class Meta:
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ordering = ['id']
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class Room(models.Model):
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name = models.CharField(max_length=50)
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house = models.ForeignKey(House, related_name='rooms')
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class Meta:
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ordering = ['id']
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class Person(models.Model):
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name = models.CharField(max_length=50)
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houses = models.ManyToManyField(House, related_name='occupants')
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@property
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def primary_house(self):
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# Assume business logic forces every person to have at least one house.
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return sorted(self.houses.all(), key=lambda house: -house.rooms.count())[0]
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class Meta:
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ordering = ['id']
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## Models for nullable FK tests
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class Employee(models.Model):
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name = models.CharField(max_length=50)
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boss = models.ForeignKey('self', null=True,
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related_name='serfs')
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def __unicode__(self):
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return self.name
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class Meta:
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ordering = ['id']
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