Source Code for Module django.contrib.comments.views.karma

 1  from django.http import Http404 
 2  from django.shortcuts import render_to_response 
 3  from django.template import RequestContext 
 4  from django.contrib.comments.models import Comment, KarmaScore 
 5  from django.utils.translation import ugettext as _ 
 6   
 7 -def vote(request, comment_id, vote, extra_context=None, context_processors=None): 
 8      """ 
 9      Rate a comment (+1 or -1) 
10   
11      Templates: `karma_vote_accepted` 
12      Context: 
13          comment 
14              `comments.comments` object being rated 
15      """ 
16      if extra_context is None: extra_context = {} 
17      rating = {'up': 1, 'down': -1}.get(vote, False) 
18      if not rating: 
19          raise Http404, "Invalid vote" 
20      if not request.user.is_authenticated(): 
21          raise Http404, _("Anonymous users cannot vote") 
22      try: 
23          comment = Comment.objects.get(pk=comment_id) 
24      except Comment.DoesNotExist: 
25          raise Http404, _("Invalid comment ID") 
26      if comment.user.id == request.user.id: 
27          raise Http404, _("No voting for yourself") 
28      KarmaScore.objects.vote(request.user.id, comment_id, rating) 
29      # Reload comment to ensure we have up to date karma count 
30      comment = Comment.objects.get(pk=comment_id) 
31      return render_to_response('comments/karma_vote_accepted.html', {'comment': comment}, 
32          context_instance=RequestContext(request, extra_context, context_processors)) 
33