newforms-admin: custom URL handling in admin now redirects to add trailing slash if needed - this fixes several bugs that occurred when you navigated to an admin page and omitted the trailing slash.

git-svn-id: http://code.djangoproject.com/svn/django/branches/newforms-admin@7825 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/contrib/admin/sites.py

@@ -100,6 +100,9 @@ class AdminSite(object):
 
         `url` is the remainder of the URL -- e.g. 'comments/comment/'.
         """
+        if request.method == 'GET' and not request.path.endswith('/'):
+            return http.HttpResponseRedirect(request.path + '/')
+        
         # Figure out the admin base URL path and stash it for later use
         self.root_path = re.sub(re.escape(url) + '$', '', request.path)
         

tests/regressiontests/admin_views/tests.py

@@ -74,7 +74,19 @@ class AdminViewPermissionsTest(TestCase):
                      'username': 'joepublic',
                      'password': 'secret'}
            
+    def testTrailingSlashRequired(self):
+        """
+        If you leave off the trailing slash, app should redirect and add it.
+        """
+        self.client.post('/test_admin/admin/', self.super_login)
         
+        request = self.client.get(
+            '/test_admin/admin/admin_views/article/add'
+        )
+        self.assertRedirects(request,
+            '/test_admin/admin/admin_views/article/add/'
+        )
+    
     def testLogin(self):
         """
         Make sure only staff members can log in.