gistfile1.pyw

@route('/forum/p/(\w+)/', 'forum_post')
class PostHandler(BaseHandler):
    def get(self, id):
        post = Post.documents.find_one({'_id': ObjectId(id), 'guild_id': self.guild_id}, fields=['thread_id', 'n'])
        assert post, 'Post does not exist.'
        thread = Thread.documents.get(post.thread_id, fields=['slug'])

        if post.n == None:
            post.n = Post.documents.eval("""function() {
                var n = -1;
                
                db[collection].find(query).forEach(function(doc) {
                    n++;
                    
                    if (doc._id.toString() == post_id) {
                        db[collection].update({_id: doc._id}, {$set: {n: n}});
                        return false;
                    }
                });
                
                return n;
            }""", query={'thread_id': thread.id}, scope={'post_id': post.id})

        posts_per_page = self.current_user.get_setting('posts_per_page')

        return self.redirect(' % s?page = % d#%s' % (thread.get_url(), int(math.ceil(float(post.n + 1) / posts_per_page)), id))