productcategoryrestriction.php

См. документацию.

<?php
 
namespace Bitrix\Sale\Services\Base;
 
use Bitrix\Sale\BasketItem;
use Bitrix\Sale\Delivery\Restrictions\Base;
use \Bitrix\Main\Localization\Loc;
use Bitrix\Sale\Internals\Entity;
 
Loc::getMessage(__FILE__);
 
abstract class ProductCategoryRestriction extends Restriction
{
    abstract protected static function getJsHandler() : string;

    abstract protected static function getBasketItems(Entity $entity) : array;

    public static function extractParams(Entity $entity) : array
    {
        if (!\Bitrix\Main\Loader::includeModule('catalog'))
        {
            return [];
        }
 
        $basketItems = static::getBasketItems($entity);
 
        $productIds = [];

        foreach ($basketItems as $basketItem)
        {
            if ($basketItem->getField('MODULE') != 'catalog')
            {
                continue;
            }
 
            $productId = (int)$basketItem->getField('PRODUCT_ID');
            $productInfo = \CCatalogSKU::getProductInfo($productId);
 
            $candidate = $productInfo['ID'] ?? $productId;
 
            if (!in_array($candidate, $productIds))
            {
                $productIds[] = $candidate;
            }
        }
 
        return self::getCategoriesItems($productIds);
    }

    public static function getClassTitle() : string
    {
        return Loc::getMessage('SALE_BASE_RESTRICTION_BY_CATEGORY');
    }
 
    public static function getOnApplyErrorMessage(): string
    {
        return Loc::getMessage('SALE_BASE_RESTRICTION_BY_CATEGORY_ON_APPLY_ERROR_MSG');
    }

    public static function check($categoriesList, array $restrictionParams, $deliveryId = 0) : bool
    {
        if (
            empty($categoriesList)
            || !is_array($categoriesList)
            || empty($restrictionParams["CATEGORIES"])
            || !is_array($restrictionParams["CATEGORIES"])
        )
        {
            return true;
        }
 
        foreach ($categoriesList as $productId => $productCategories)
        {
            if (!is_array($productCategories) || empty($productCategories))
            {
                continue;
            }
 
            $isProductFromCategory = false;
 
            foreach ($productCategories as $categoryId)
            {
                $categoryPath = self::getCategoriesPath($categoryId);
 
                if (array_intersect($categoryPath, $restrictionParams["CATEGORIES"]))
                {
                    $isProductFromCategory =  true;
                    break;
                }
            }
 
            if (!$isProductFromCategory)
            {
                return false;
            }
        }
 
        return true;
    }

    protected static function getCategoriesItems(array $productIds) : array
    {
        if (!\Bitrix\Main\Loader::includeModule('iblock'))
        {
            return [];
        }
 
        $groupsIds = [];
 
        $res = \CIBlockElement::GetElementGroups($productIds, true, ['ID', 'IBLOCK_ELEMENT_ID']);
 
        while ($group = $res->Fetch())
        {
            if (!is_array($groupsIds[$group['IBLOCK_ELEMENT_ID']]))
            {
                $groupsIds[$group['IBLOCK_ELEMENT_ID']] = [];
            }
 
            if (!in_array($group['ID'], $groupsIds[$group['IBLOCK_ELEMENT_ID']]))
            {
                $groupsIds[$group['IBLOCK_ELEMENT_ID']][] = $group['ID'];
            }
        }
 
        return $groupsIds;
    }

    protected static function getCategoriesPath($categoryId) : array
    {
        if (!\Bitrix\Main\Loader::includeModule('iblock'))
        {
            return [];
        }
 
        $result = [];
 
        $nav = \CIBlockSection::GetNavChain(false, $categoryId, ['ID'], true);
        foreach ($nav as $arSectionPath)
        {
            $result[] = $arSectionPath['ID'];
        }
 
        return $result;
    }

    public static function getParamsStructure($entityId = 0) : array
    {
        return [
            "CATEGORIES" => [
                "TYPE" => "PRODUCT_CATEGORIES",
                "ID" => 'sale-admin-category-restriction',
                "JS_HANDLER" => static::getJsHandler(),
                "LABEL" => Loc::getMessage('SALE_BASE_RESTRICTION_BY_CATEGORY_LST_LABEL'),
            ],
        ];
    }
 
 
}