private function submitComment()
 {
     $bc = Model::load('BlogComment');
     $bc->blog_id = $_GET['id'];
     $bc->status = 1;
     $bc->body = $_POST['body'];
     $bc->heading = '';
     $bc->user_id = CurrentUser::getUserId();
     $bc->validates();
     if ($bc->hasValErrors()) {
         $this->presenter->assign('comment', $bc);
         $this->presenter->assign('errors', $bc->val->errors);
     } else {
         $bc->stamp = date('Y-m-d H:i:s', time());
         $bc->insert(Model::getTable('BlogComment'), 1, array('body'), 1);
         $this->redirect('blog/item/' . $bc->blog_id);
     }
 }