2014-01-22 06:43:33 +00:00
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from django.contrib.contenttypes.fields import (
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2015-01-28 12:35:27 +00:00
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GenericForeignKey, GenericRelation,
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2014-01-22 06:43:33 +00:00
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)
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2009-04-03 19:52:14 +00:00
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from django.contrib.contenttypes.models import ContentType
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2011-10-13 21:34:56 +00:00
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from django.db import models
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2009-04-03 19:52:14 +00:00
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2011-10-13 21:34:56 +00:00
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__all__ = ('Link', 'Place', 'Restaurant', 'Person', 'Address',
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'CharLink', 'TextLink', 'OddRelation1', 'OddRelation2',
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2013-02-02 01:10:16 +00:00
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'Contact', 'Organization', 'Note', 'Company')
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2010-02-10 19:21:52 +00:00
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2013-11-03 04:36:09 +00:00
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2009-04-03 19:52:14 +00:00
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class Link(models.Model):
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content_type = models.ForeignKey(ContentType, models.CASCADE)
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2009-04-03 19:52:14 +00:00
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object_id = models.PositiveIntegerField()
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2014-01-22 06:43:33 +00:00
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content_object = GenericForeignKey()
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2009-04-03 19:52:14 +00:00
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2012-08-12 10:32:08 +00:00
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def __str__(self):
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return "Link to %s id=%s" % (self.content_type, self.object_id)
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2013-11-03 04:36:09 +00:00
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2017-07-21 22:21:13 +00:00
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class LinkProxy(Link):
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class Meta:
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proxy = True
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2009-04-03 19:52:14 +00:00
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class Place(models.Model):
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name = models.CharField(max_length=100)
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2018-03-13 02:42:48 +00:00
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links = GenericRelation(Link, related_query_name='places')
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2017-07-21 22:21:13 +00:00
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link_proxy = GenericRelation(LinkProxy)
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2010-01-22 18:39:48 +00:00
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2012-08-12 10:32:08 +00:00
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def __str__(self):
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return "Place: %s" % self.name
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2013-11-03 04:36:09 +00:00
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2010-01-22 18:39:48 +00:00
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class Restaurant(Place):
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def __str__(self):
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return "Restaurant: %s" % self.name
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2013-11-03 04:36:09 +00:00
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2017-12-05 21:08:50 +00:00
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class Cafe(Restaurant):
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def __str__(self):
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return "Cafe: %s" % self.name
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2010-01-22 18:39:48 +00:00
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class Address(models.Model):
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street = models.CharField(max_length=80)
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city = models.CharField(max_length=50)
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state = models.CharField(max_length=2)
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zipcode = models.CharField(max_length=5)
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content_type = models.ForeignKey(ContentType, models.CASCADE)
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object_id = models.PositiveIntegerField()
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2014-01-22 06:43:33 +00:00
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content_object = GenericForeignKey()
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2012-08-12 10:32:08 +00:00
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def __str__(self):
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return '%s %s, %s %s' % (self.street, self.city, self.state, self.zipcode)
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2013-11-03 04:36:09 +00:00
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2010-01-22 18:39:48 +00:00
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class Person(models.Model):
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account = models.IntegerField(primary_key=True)
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name = models.CharField(max_length=128)
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addresses = GenericRelation(Address)
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2012-08-12 10:32:08 +00:00
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def __str__(self):
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return self.name
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2010-01-29 17:58:22 +00:00
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2013-11-03 04:36:09 +00:00
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2010-01-29 17:58:22 +00:00
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class CharLink(models.Model):
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content_type = models.ForeignKey(ContentType, models.CASCADE)
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object_id = models.CharField(max_length=100)
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2014-01-22 06:43:33 +00:00
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content_object = GenericForeignKey()
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2010-01-29 17:58:22 +00:00
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2013-11-03 04:36:09 +00:00
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2010-01-29 17:58:22 +00:00
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class TextLink(models.Model):
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content_type = models.ForeignKey(ContentType, models.CASCADE)
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2010-01-29 17:58:22 +00:00
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object_id = models.TextField()
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2014-01-22 06:43:33 +00:00
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content_object = GenericForeignKey()
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2010-01-29 17:58:22 +00:00
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2013-11-03 04:36:09 +00:00
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2010-01-29 17:58:22 +00:00
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class OddRelation1(models.Model):
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name = models.CharField(max_length=100)
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clinks = GenericRelation(CharLink)
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2010-01-29 17:58:22 +00:00
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2013-11-03 04:36:09 +00:00
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2010-01-29 17:58:22 +00:00
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class OddRelation2(models.Model):
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name = models.CharField(max_length=100)
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tlinks = GenericRelation(TextLink)
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2010-01-29 17:58:22 +00:00
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2013-11-03 04:36:09 +00:00
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2010-02-10 19:21:52 +00:00
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# models for test_q_object_or:
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class Note(models.Model):
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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()
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2010-02-10 19:21:52 +00:00
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note = models.TextField()
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2013-11-03 04:36:09 +00:00
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2010-02-10 19:21:52 +00:00
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class Contact(models.Model):
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notes = GenericRelation(Note)
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2010-02-10 19:21:52 +00:00
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2013-11-03 04:36:09 +00:00
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2010-02-10 19:21:52 +00:00
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class Organization(models.Model):
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name = models.CharField(max_length=255)
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contacts = models.ManyToManyField(Contact, related_name='organizations')
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2013-11-03 04:36:09 +00:00
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2013-02-02 01:10:16 +00:00
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class Company(models.Model):
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name = models.CharField(max_length=100)
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links = GenericRelation(Link)
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def __str__(self):
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return "Company: %s" % self.name
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2013-02-06 02:35:10 +00:00
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2013-11-03 04:36:09 +00:00
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2013-02-06 02:35:10 +00:00
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# For testing #13085 fix, we also use Note model defined above
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class Developer(models.Model):
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name = models.CharField(max_length=15)
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2013-11-03 04:36:09 +00:00
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2013-02-06 02:35:10 +00:00
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class Team(models.Model):
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name = models.CharField(max_length=15)
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members = models.ManyToManyField(Developer)
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def __str__(self):
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return "%s team" % self.name
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def __len__(self):
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return self.members.count()
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2013-11-03 04:36:09 +00:00
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2013-02-06 02:35:10 +00:00
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class Guild(models.Model):
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name = models.CharField(max_length=15)
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members = models.ManyToManyField(Developer)
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2017-01-19 14:55:03 +00:00
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def __bool__(self):
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return False
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2013-11-03 04:36:09 +00:00
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2013-02-06 02:35:10 +00:00
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class Tag(models.Model):
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content_type = models.ForeignKey(ContentType, models.CASCADE, related_name='g_r_r_tags')
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object_id = models.CharField(max_length=15)
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2014-01-22 06:43:33 +00:00
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content_object = GenericForeignKey()
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label = models.CharField(max_length=15)
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2013-11-03 04:36:09 +00:00
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2013-02-06 02:35:10 +00:00
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class Board(models.Model):
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name = models.CharField(primary_key=True, max_length=15)
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2013-05-20 14:40:34 +00:00
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2013-11-03 04:36:09 +00:00
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2014-01-22 06:43:33 +00:00
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class SpecialGenericRelation(GenericRelation):
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self.editable = True
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self.save_form_data_calls = 0
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def save_form_data(self, *args, **kwargs):
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self.save_form_data_calls += 1
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2013-05-20 14:40:34 +00:00
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class HasLinks(models.Model):
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2018-08-09 01:25:18 +00:00
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links = SpecialGenericRelation(Link, related_query_name='targets')
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2013-05-20 14:40:34 +00:00
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class Meta:
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abstract = True
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2013-11-03 04:36:09 +00:00
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2013-05-20 14:40:34 +00:00
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class HasLinkThing(HasLinks):
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pass
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2013-06-05 21:29:44 +00:00
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2013-11-03 04:36:09 +00:00
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2013-06-05 21:29:44 +00:00
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class A(models.Model):
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flag = models.BooleanField(null=True)
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content_type = models.ForeignKey(ContentType, models.CASCADE)
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2013-06-05 21:29:44 +00:00
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object_id = models.PositiveIntegerField()
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2014-01-22 06:43:33 +00:00
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content_object = GenericForeignKey('content_type', 'object_id')
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2013-06-05 21:29:44 +00:00
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2013-11-03 04:36:09 +00:00
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2013-06-05 21:29:44 +00:00
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class B(models.Model):
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a = GenericRelation(A)
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class Meta:
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ordering = ('id',)
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2013-11-03 04:36:09 +00:00
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2013-06-05 21:29:44 +00:00
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class C(models.Model):
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b = models.ForeignKey(B, models.CASCADE)
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class Meta:
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ordering = ('id',)
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2013-11-03 04:36:09 +00:00
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2013-06-05 21:29:44 +00:00
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class D(models.Model):
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b = models.ForeignKey(B, models.SET_NULL, null=True)
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2013-06-05 21:29:44 +00:00
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class Meta:
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ordering = ('id',)
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2014-07-14 16:42:14 +00:00
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# Ticket #22998
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class Node(models.Model):
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content_type = models.ForeignKey(ContentType, models.CASCADE)
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2014-07-14 16:42:14 +00:00
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object_id = models.PositiveIntegerField()
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content = GenericForeignKey('content_type', 'object_id')
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class Content(models.Model):
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nodes = GenericRelation(Node)
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related_obj = models.ForeignKey('Related', models.CASCADE)
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2014-07-14 16:42:14 +00:00
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class Related(models.Model):
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pass
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def prevent_deletes(sender, instance, **kwargs):
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2019-08-20 07:54:41 +00:00
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raise models.ProtectedError("Not allowed to delete.", [instance])
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2014-07-14 16:42:14 +00:00
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2016-11-12 17:11:23 +00:00
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2014-07-14 16:42:14 +00:00
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models.signals.pre_delete.connect(prevent_deletes, sender=Node)
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