ProductVariationProvider.php

<?php
 
namespace Bitrix\Catalog\v2\Integration\UI\EntitySelector\AgentContract;
 
use Bitrix\Catalog;
 
class ProductVariationProvider extends Catalog\v2\Integration\UI\EntitySelector\ProductProvider
{
    protected const ENTITY_ID = 'agent-contractor-product-variation';
 
    protected function getProducts(array $parameters = []): array
    {
        $iblockInfo = $this->getIblockInfo();
        if (!$iblockInfo)
        {
            return [];
        }
 
        $productFilter = (array)($parameters['filter'] ?? []);
        $additionalProductFilter = [
            'IBLOCK_ID' => $iblockInfo->getProductIblockId(),
        ];
        $filteredTypes = [];
        if ($this->options['restrictedProductTypes'] !== null)
        {
            $filteredTypes = array_intersect(
                $this->options['restrictedProductTypes'],
                Catalog\ProductTable::getProductTypes()
            );
        }
        $filteredTypes[] = Catalog\ProductTable::TYPE_EMPTY_SKU;
        $additionalProductFilter['!=TYPE'] = array_values(array_unique($filteredTypes));
 
        return $this->loadElements([
            'filter' => array_merge($productFilter, $additionalProductFilter),
            'limit' => self::PRODUCT_LIMIT,
        ]);
    }
}