--- a/thirdparty/google_appengine/lib/django/tests/modeltests/generic_relations/models.py	Sun Sep 06 23:31:53 2009 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,134 +0,0 @@
-"""
-34. Generic relations
-
-Generic relations let an object have a foreign key to any object through a
-content-type/object-id field. A generic foreign key can point to any object,
-be it animal, vegetable, or mineral.
-
-The canonical example is tags (although this example implementation is *far*
-from complete).
-"""
-
-from django.db import models
-from django.contrib.contenttypes.models import ContentType
-
-class TaggedItem(models.Model):
-    """A tag on an item."""
-    tag = models.SlugField()
-    content_type = models.ForeignKey(ContentType)
-    object_id = models.PositiveIntegerField()
-    
-    content_object = models.GenericForeignKey()
-    
-    class Meta:
-        ordering = ["tag"]
-    
-    def __str__(self):
-        return self.tag
-
-class Animal(models.Model):
-    common_name = models.CharField(maxlength=150)
-    latin_name = models.CharField(maxlength=150)
-    
-    tags = models.GenericRelation(TaggedItem)
-
-    def __str__(self):
-        return self.common_name
-        
-class Vegetable(models.Model):
-    name = models.CharField(maxlength=150)
-    is_yucky = models.BooleanField(default=True)
-    
-    tags = models.GenericRelation(TaggedItem)
-    
-    def __str__(self):
-        return self.name
-    
-class Mineral(models.Model):
-    name = models.CharField(maxlength=150)
-    hardness = models.PositiveSmallIntegerField()
-    
-    # note the lack of an explicit GenericRelation here...
-    
-    def __str__(self):
-        return self.name
-        
-__test__ = {'API_TESTS':"""
-# Create the world in 7 lines of code...
->>> lion = Animal(common_name="Lion", latin_name="Panthera leo")
->>> platypus = Animal(common_name="Platypus", latin_name="Ornithorhynchus anatinus")
->>> eggplant = Vegetable(name="Eggplant", is_yucky=True)
->>> bacon = Vegetable(name="Bacon", is_yucky=False)
->>> quartz = Mineral(name="Quartz", hardness=7)
->>> for o in (lion, platypus, eggplant, bacon, quartz):
-...     o.save()
-
-# Objects with declared GenericRelations can be tagged directly -- the API
-# mimics the many-to-many API.
->>> bacon.tags.create(tag="fatty")
-<TaggedItem: fatty>
->>> bacon.tags.create(tag="salty")
-<TaggedItem: salty>
->>> lion.tags.create(tag="yellow")
-<TaggedItem: yellow>
->>> lion.tags.create(tag="hairy")
-<TaggedItem: hairy>
-
->>> lion.tags.all()
-[<TaggedItem: hairy>, <TaggedItem: yellow>]
->>> bacon.tags.all()
-[<TaggedItem: fatty>, <TaggedItem: salty>]
-
-# You can easily access the content object like a foreign key.
->>> t = TaggedItem.objects.get(tag="salty")
->>> t.content_object
-<Vegetable: Bacon>
-
-# Recall that the Mineral class doesn't have an explicit GenericRelation
-# defined. That's OK, because you can create TaggedItems explicitly.
->>> tag1 = TaggedItem(content_object=quartz, tag="shiny")
->>> tag2 = TaggedItem(content_object=quartz, tag="clearish")
->>> tag1.save()
->>> tag2.save()
-
-# However, excluding GenericRelations means your lookups have to be a bit more
-# explicit.
->>> from django.contrib.contenttypes.models import ContentType
->>> ctype = ContentType.objects.get_for_model(quartz)
->>> TaggedItem.objects.filter(content_type__pk=ctype.id, object_id=quartz.id)
-[<TaggedItem: clearish>, <TaggedItem: shiny>]
-
-# You can set a generic foreign key in the way you'd expect.
->>> tag1.content_object = platypus
->>> tag1.save()
->>> platypus.tags.all()
-[<TaggedItem: shiny>]
->>> TaggedItem.objects.filter(content_type__pk=ctype.id, object_id=quartz.id)
-[<TaggedItem: clearish>]
-
-# If you delete an object with an explicit Generic relation, the related
-# objects are deleted when the source object is deleted.
-# Original list of tags:
->>> [(t.tag, t.content_type, t.object_id) for t in TaggedItem.objects.all()]
-[('clearish', <ContentType: mineral>, 1), ('fatty', <ContentType: vegetable>, 2), ('hairy', <ContentType: animal>, 1), ('salty', <ContentType: vegetable>, 2), ('shiny', <ContentType: animal>, 2), ('yellow', <ContentType: animal>, 1)]
-
->>> lion.delete()
->>> [(t.tag, t.content_type, t.object_id) for t in TaggedItem.objects.all()]
-[('clearish', <ContentType: mineral>, 1), ('fatty', <ContentType: vegetable>, 2), ('salty', <ContentType: vegetable>, 2), ('shiny', <ContentType: animal>, 2)]
-
-# If Generic Relation is not explicitly defined, any related objects 
-# remain after deletion of the source object.
->>> quartz.delete()
->>> [(t.tag, t.content_type, t.object_id) for t in TaggedItem.objects.all()]
-[('clearish', <ContentType: mineral>, 1), ('fatty', <ContentType: vegetable>, 2), ('salty', <ContentType: vegetable>, 2), ('shiny', <ContentType: animal>, 2)]
-
-# If you delete a tag, the objects using the tag are unaffected 
-# (other than losing a tag)
->>> tag = TaggedItem.objects.get(id=1)
->>> tag.delete()
->>> bacon.tags.all()
-[<TaggedItem: salty>]
->>> [(t.tag, t.content_type, t.object_id) for t in TaggedItem.objects.all()]
-[('clearish', <ContentType: mineral>, 1), ('salty', <ContentType: vegetable>, 2), ('shiny', <ContentType: animal>, 2)]
-
-"""}