IblockElement::onBeforeIBlockElementDelete

static function onBeforeIBlockElementDelete($productId)
{
	global $APPLICATION;

	$productId = (int)$productId;
	if ($productId >= 0)
	{
		$agentProduct = CatalogAgentProductTable::getRow([
			'select' => [
				'ID',
			],
			'filter' => [
				'=PRODUCT_ID' => $productId,
			],
		]);
		if ($agentProduct)
		{
			MainLoader::includeModule('iblock');

			$element = IblockElementTable::getList([
				'select' => ['ID', 'NAME'],
				'filter' => ['=ID' => $productId],
			])->fetch();

			$error = MainLocalizationLoc::getMessage(
				'CATALOG_AGENT_CONTRACT_ERROR_ELEMENT_IN_DOCUMENT_EXISTS',
				[
					'#ID#' => $element['ID'],
					'#NAME#' => $element['NAME'],
				]
			);
			$APPLICATION->ThrowException($error);

			return false;
		}
	}

	return true;
}