| from django.http import Http404 |
| from django.shortcuts import render_to_response |
| from django.template import RequestContext |
| from django.contrib.comments.models import Comment, KarmaScore |
| from django.utils.translation import ugettext as _ |
| |
| def vote(request, comment_id, vote, extra_context=None, context_processors=None): |
| """ |
| Rate a comment (+1 or -1) |
| |
| Templates: `karma_vote_accepted` |
| Context: |
| comment |
| `comments.comments` object being rated |
| """ |
| if extra_context is None: extra_context = {} |
| rating = {'up': 1, 'down': -1}.get(vote, False) |
| if not rating: |
| raise Http404, "Invalid vote" |
| if not request.user.is_authenticated(): |
| raise Http404, _("Anonymous users cannot vote") |
| try: |
| comment = Comment.objects.get(pk=comment_id) |
| except Comment.DoesNotExist: |
| raise Http404, _("Invalid comment ID") |
| if comment.user.id == request.user.id: |
| raise Http404, _("No voting for yourself") |
| KarmaScore.objects.vote(request.user.id, comment_id, rating) |
| # Reload comment to ensure we have up to date karma count |
| comment = Comment.objects.get(pk=comment_id) |
| return render_to_response('comments/karma_vote_accepted.html', {'comment': comment}, |
| context_instance=RequestContext(request, extra_context, context_processors)) |
