ContentUpdater.addCommentToPost("<%= @comment.post.guid %>",
   "<%= @comment.guid%>",
   "<%= escape_javascript(render(:partial => 'comments/comment', :locals => { :comment => @comment, :person => current_user.person}))%>");

Diaspora.page
  .stream
  .streamElements["<%= @comment.post.guid %>"]
  .commentStream
  .instantiateCommentWidgets();