--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/parts/django/tests/modeltests/get_object_or_404/models.py	Sat Jan 08 11:20:57 2011 +0530
@@ -0,0 +1,34 @@
+"""
+35. DB-API Shortcuts
+
+``get_object_or_404()`` is a shortcut function to be used in view functions for
+performing a ``get()`` lookup and raising a ``Http404`` exception if a
+``DoesNotExist`` exception was raised during the ``get()`` call.
+
+``get_list_or_404()`` is a shortcut function to be used in view functions for
+performing a ``filter()`` lookup and raising a ``Http404`` exception if a
+``DoesNotExist`` exception was raised during the ``filter()`` call.
+"""
+
+from django.db import models
+from django.http import Http404
+from django.shortcuts import get_object_or_404, get_list_or_404
+
+class Author(models.Model):
+    name = models.CharField(max_length=50)
+
+    def __unicode__(self):
+        return self.name
+
+class ArticleManager(models.Manager):
+    def get_query_set(self):
+        return super(ArticleManager, self).get_query_set().filter(authors__name__icontains='sir')
+
+class Article(models.Model):
+    authors = models.ManyToManyField(Author)
+    title = models.CharField(max_length=50)
+    objects = models.Manager()
+    by_a_sir = ArticleManager()
+
+    def __unicode__(self):
+        return self.title