Add ModelWithFieldAttributes *before* PolyModel, so that everything does not
become a "ModelWithFieldAttributes" in the Datastore.
The way PolyModel works, each Model class hierarchy is stored in the Datastore
as the class that directly inherited from PolyModel. So, we do not want to
insert ModelWithFieldAttributes *after* PolyModel by inheriting *from*
PolyModel, or everything would just be a ModelWithFieldAttributes in the
Datastore, instead of Person, Work, Group, etc.
from django.contrib.syndication import feeds
from django.http import HttpResponse, Http404
def feed(request, url, feed_dict=None):
if not feed_dict:
raise Http404, "No feeds are registered."
try:
slug, param = url.split('/', 1)
except ValueError:
slug, param = url, ''
try:
f = feed_dict[slug]
except KeyError:
raise Http404, "Slug %r isn't registered." % slug
try:
feedgen = f(slug, request).get_feed(param)
except feeds.FeedDoesNotExist:
raise Http404, "Invalid feed parameters. Slug %r is valid, but other parameters, or lack thereof, are not." % slug
response = HttpResponse(mimetype=feedgen.mime_type)
feedgen.write(response, 'utf-8')
return response