Fixed #1646 -- Added HttpResponseNotAllowed, as suggested by Ian Holsman.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@3144 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/http/__init__.py

@@ -265,6 +265,12 @@ class HttpResponseForbidden(HttpResponse):
         HttpResponse.__init__(self, *args, **kwargs)
         self.status_code = 403
 
+class HttpResponseNotAllowed(HttpResponse):
+    def __init__(self, permitted_methods):
+        HttpResponse.__init__(self)
+        self['Allow'] = ', '.join(permitted_methods)
+        self.status_code = 405
+
 class HttpResponseGone(HttpResponse):
     def __init__(self, *args, **kwargs):
         HttpResponse.__init__(self, *args, **kwargs)

docs/request_response.txt

@@ -400,6 +400,10 @@ types of HTTP responses. Like ``HttpResponse``, these subclasses live in
 ``HttpResponseForbidden``
     Acts just like ``HttpResponse`` but uses a 403 status code.
 
+``HttpResponseNotAllowed``
+    Like ``HttpResponse``, but uses a 405 status code. Takes a single,
+    required argument: a list of permitted methods (e.g. ``['GET', 'POST']``).
+
 ``HttpResponseGone``
     Acts just like ``HttpResponse`` but uses a 410 status code.