forum/middleware/cancel.py

   1 from django.http import HttpResponseRedirect
   2 from forum.forms import get_next_url
   3 import logging
   4 from django.contrib import messages
   5
   6 class CancelActionMiddleware(object):
   7     def process_view(self, request, view_func, view_args, view_kwargs):
   8         if 'cancel' in request.REQUEST:
   9             #todo use session messages for the anonymous users
  10             try:
  11                 msg = getattr(view_func,'CANCEL_MESSAGE')
  12             except AttributeError:
  13                 msg = 'action canceled'
  14             messages.info(request, msg)
  15             return HttpResponseRedirect(get_next_url(request))
  16         else:
  17             return None