basereservestoreproductaction.php

См. документацию.

<?php
 
namespace Bitrix\Catalog\Document\Action\Reserve;
 
use Bitrix\Catalog\Document\Action\ProductAndStoreInfo;
use Bitrix\Catalog\v2\Internal\ProductInternalService;
use Bitrix\Main\Application;
use Bitrix\Main\Error;
use Bitrix\Main\Localization\Loc;
use Bitrix\Main\Result;
use CCatalogStoreProduct;
 
Loc::loadMessages(
    Application::getDocumentRoot() .'/bitrix/modules/catalog/general/store_docs_type.php'
);

trait BaseReserveStoreProductAction
{
    use ProductAndStoreInfo;

    protected $storeId;

    protected $productId;

    protected $amount;

    public function __construct(int $storeId, int $productId, float $amount)
    {
        $this->storeId = $storeId;
        $this->productId = $productId;
        $this->amount = $amount;
    }

    abstract protected function getNewProductQuantity(): float;

    abstract protected function getNewProductReservedQuantity(): float;

    abstract protected function getNewStoreReservedQuantity(): float;

    public function execute(): Result
    {
        $result = new Result();
 
        // update store info
        $ret = CCatalogStoreProduct::UpdateFromForm([
            'PRODUCT_ID' => $this->productId,
            'STORE_ID' => $this->storeId,
            'AMOUNT' => $this->getStoreProductAmount(),
            'QUANTITY_RESERVED' => $this->getNewStoreReservedQuantity(),
        ]);
        if (!$ret)
        {
            $result->addError(
                new Error(Loc::getMessage("CATALOG_STORE_DOCS_ERR_CANT_UPDATE_STORE_PRODUCT"))
            );
            return $result;
        }
 
        $productService = new ProductInternalService(true);
 
        // update product info
        $ret = $productService->update($this->productId, [
            'QUANTITY' => $this->getNewProductQuantity(),
            'QUANTITY_RESERVED' => $this->getNewProductReservedQuantity(),
        ]);
        if (!$ret->isSuccess())
        {
            $result->addError(
                new Error(Loc::getMessage("CATALOG_STORE_DOCS_ERR_PURCHASING_INFO_ERROR"))
            );
            return $result;
        }
 
        return $result;
    }
}