public function editAction()
 {
     $comment_id = (int) $this->getParam('id');
     $form_config = $this->current_module_config->forms->upload_comment;
     $form = new \FA\Form($form_config);
     $form->populate($_POST);
     if ($_POST && $form->isValid($_POST) && $this->csrf->verify($form->getValue('csrf'), '_upload_comments')) {
         // TODO: Check comment edit rate limit here!
         $comment = UploadComment::find($comment_id);
         if (!$comment instanceof UploadComment) {
             throw new \FA\Exception('Comment not found!');
         }
         if (!$comment->canEdit($this->user)) {
             throw new \FA\Exception('Unable to edit comment!');
         }
         $upload = $comment->upload;
         // Prevent posting if comments are locked
         if ($upload->comments_locked) {
             throw new \FA\Exception('Comments are locked on this Upload!');
         }
         // Verify the user can even progress further
         self::_userCheck($upload);
         // Update the comment's text
         $comment->message = $form->getValue('JSMessage');
         $comment->save();
         // Redirect to the Upload page to our comment!
         // TODO: Add a way to auto-lock on to the comment. Maybe a perma-link style approach?
         return $this->redirectToName('upload_view', array('id' => $upload->id));
     }
 }