Уникальный символьный код для элемента

// Uniqueness of the element's code
AddEventHandler("iblock", "OnAfterIBlockElementAdd", "UniquenessCode");
function UniquenessCode (&$arFields) {
	if ($arFields["IBLOCK_ID"] == CATALOG_IBLOCK_ID && !empty($arFields["CODE"])) {
		$code = $arFields["CODE"] . "-" . $arFields["ID"];
		$code = str_replace("--", "-", $code);
		
		$objElement = new CIBlockElement;
		$objElement->Update($arFields["ID"], array("CODE" => $code));
	}
	return true;
}