code: public QueryQuestionComment updateQueryQuestionComment(QueryQuestionComment queryQuestionComment, String comment, Boolean hidden, User modifier, Date modified) {
      queryQuestionCommentDAO.updateHidden(queryQuestionComment, hidden, modifier);
      return queryQuestionCommentDAO.updateComment(queryQuestionComment, comment, modifier, modified);
    }
docs: Updates query question comment
  
  @param queryQuestionComment comment to be updated
  @param comment comment contents
  @param hidden whether comment should be hidden
  @param modifier modifier
  @param modified modification time
  @return