--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/thirdparty/google_appengine/lib/django/tests/modeltests/reverse_lookup/models.py	Tue Aug 26 21:49:54 2008 +0000
@@ -0,0 +1,59 @@
+"""
+25. Reverse lookups
+
+This demonstrates the reverse lookup features of the database API.
+"""
+
+from django.db import models
+
+class User(models.Model):
+    name = models.CharField(maxlength=200)
+
+    def __str__(self):
+        return self.name
+
+class Poll(models.Model):
+    question = models.CharField(maxlength=200)
+    creator = models.ForeignKey(User)
+
+    def __str__(self):
+        return self.question
+
+class Choice(models.Model):
+    name = models.CharField(maxlength=100)
+    poll = models.ForeignKey(Poll, related_name="poll_choice")
+    related_poll = models.ForeignKey(Poll, related_name="related_choice")
+
+    def __str(self):
+        return self.name
+
+__test__ = {'API_TESTS':"""
+>>> john = User(name="John Doe")
+>>> john.save()
+>>> jim = User(name="Jim Bo")
+>>> jim.save()
+>>> first_poll = Poll(question="What's the first question?", creator=john)
+>>> first_poll.save()
+>>> second_poll = Poll(question="What's the second question?", creator=jim)
+>>> second_poll.save()
+>>> new_choice = Choice(poll=first_poll, related_poll=second_poll, name="This is the answer.")
+>>> new_choice.save()
+
+>>> # Reverse lookups by field name:
+>>> User.objects.get(poll__question__exact="What's the first question?")
+<User: John Doe>
+>>> User.objects.get(poll__question__exact="What's the second question?")
+<User: Jim Bo>
+
+>>> # Reverse lookups by related_name:
+>>> Poll.objects.get(poll_choice__name__exact="This is the answer.")
+<Poll: What's the first question?>
+>>> Poll.objects.get(related_choice__name__exact="This is the answer.")
+<Poll: What's the second question?>
+
+>>> # If a related_name is given you can't use the field name instead:
+>>> Poll.objects.get(choice__name__exact="This is the answer")
+Traceback (most recent call last):
+    ...
+TypeError: Cannot resolve keyword 'choice' into field
+"""}