public function setComment($id)
{
$id = intval($id);
$message = $id > 0 ? \CForumMessage::getById($id) : null;
if (!empty($message)) {
if ($message["TOPIC_ID"] != $this->topic["ID"]) {
throw new ArgumentException(Loc::getMessage("ACCESS_DENIED"), self::ERROR_PERMISSION);
}
$this->id = $id;
$this->message = $message;
}
}