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105 lines
3.0 KiB
Python
105 lines
3.0 KiB
Python
from django.contrib.contenttypes.fields import (
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GenericForeignKey, GenericRelation,
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)
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from django.contrib.contenttypes.models import ContentType
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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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age = models.IntegerField()
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friends = models.ManyToManyField('self', blank=True)
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def __str__(self):
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return self.name
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class Publisher(models.Model):
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name = models.CharField(max_length=255)
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num_awards = models.IntegerField()
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def __str__(self):
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return self.name
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class ItemTag(models.Model):
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tag = models.CharField(max_length=100)
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content_type = models.ForeignKey(ContentType, models.CASCADE)
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object_id = models.PositiveIntegerField()
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content_object = GenericForeignKey('content_type', 'object_id')
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class Book(models.Model):
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isbn = models.CharField(max_length=9)
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name = models.CharField(max_length=255)
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pages = models.IntegerField()
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rating = models.FloatField()
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price = models.DecimalField(decimal_places=2, max_digits=6)
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authors = models.ManyToManyField(Author)
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contact = models.ForeignKey(Author, models.CASCADE, related_name='book_contact_set')
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publisher = models.ForeignKey(Publisher, models.CASCADE)
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pubdate = models.DateField()
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tags = GenericRelation(ItemTag)
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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 Store(models.Model):
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name = models.CharField(max_length=255)
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books = models.ManyToManyField(Book)
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original_opening = models.DateTimeField()
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friday_night_closing = models.TimeField()
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def __str__(self):
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return self.name
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class Entries(models.Model):
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EntryID = models.AutoField(primary_key=True, db_column='Entry ID')
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Entry = models.CharField(unique=True, max_length=50)
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Exclude = models.BooleanField(default=False)
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class Clues(models.Model):
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ID = models.AutoField(primary_key=True)
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EntryID = models.ForeignKey(Entries, models.CASCADE, verbose_name='Entry', db_column='Entry ID')
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Clue = models.CharField(max_length=150)
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class WithManualPK(models.Model):
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# The generic relations regression test needs two different model
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# classes with the same PK value, and there are some (external)
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# DB backends that don't work nicely when assigning integer to AutoField
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# column (MSSQL at least).
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id = models.IntegerField(primary_key=True)
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class HardbackBook(Book):
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weight = models.FloatField()
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def __str__(self):
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return "%s (hardback): %s" % (self.name, self.weight)
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# Models for ticket #21150
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class Alfa(models.Model):
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name = models.CharField(max_length=10, null=True)
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class Bravo(models.Model):
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pass
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class Charlie(models.Model):
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alfa = models.ForeignKey(Alfa, models.SET_NULL, null=True)
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bravo = models.ForeignKey(Bravo, models.SET_NULL, null=True)
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class SelfRefFK(models.Model):
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name = models.CharField(max_length=50)
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parent = models.ForeignKey('self', models.SET_NULL, null=True, blank=True, related_name='children')
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