IblockElement.php

<?php
 
namespace Bitrix\Catalog\v2\AgentContract\EventHandlers;
 
use Bitrix\Main;
use Bitrix\Catalog;
use Bitrix\Iblock;
 
class IblockElement
{
    public static function onBeforeIBlockElementDelete($productId)
    {
        global $APPLICATION;
 
        $productId = (int)$productId;
        if ($productId >= 0)
        {
            $agentProduct = Catalog\AgentProductTable::getRow([
                'select' => [
                    'ID',
                ],
                'filter' => [
                    '=PRODUCT_ID' => $productId,
                ],
            ]);
            if ($agentProduct)
            {
                Main\Loader::includeModule('iblock');
 
                $element = Iblock\ElementTable::getList([
                    'select' => ['ID', 'NAME'],
                    'filter' => ['=ID' => $productId],
                ])->fetch();
 
                $error = Main\Localization\Loc::getMessage(
                    'CATALOG_AGENT_CONTRACT_ERROR_ELEMENT_IN_DOCUMENT_EXISTS',
                    [
                        '#ID#' => $element['ID'],
                        '#NAME#' => $element['NAME'],
                    ]
                );
                $APPLICATION->ThrowException($error);
 
                return false;
            }
        }
 
        return true;
    }
}