public function delete($id)
 {
     if (Auth::isUserInRole(array('admin')) || $this->comment->getComment($id)['user_id'] == Auth::getUserId()) {
         if ($this->comment->delete($id) !== 1) {
             Session::setError('something went wrong');
             Redirect::back();
         }
         Session::setMessage('Done');
         Redirect::back();
     }
     Redirect::back();
 }