ProductPicture.php

См. документацию.

<?php
 
namespace Bitrix\Sale\Product;
 
use Bitrix\Main\Loader;
use Bitrix\Main\Type\Collection;
 
final class ProductPicture
{
    private const CODE_PREVIEW_PICTURE = 'PREVIEW_PICTURE';
    private const CODE_DETAIL_PICTURE = 'DETAIL_PICTURE';
    private const CODE_MORE_PHOTO = \CIBlockPropertyTools::CODE_MORE_PHOTO;
 
    public static function get(array $productIdList): ?array
    {
        if (!Loader::includeModule('iblock'))
        {
            return null;
        }
 
        if (empty($productIdList))
        {
            return null;
        }
 
        $result = [];
        $productListToGetMorePhoto = [];
 
        $iblockElementList = \CIBlockElement::GetList(
            [],
            [
                'ID' => $productIdList,
            ],
            false,
            false,
            [
                'ID',
                'IBLOCK_ID',
                ProductPicture::CODE_PREVIEW_PICTURE,
                ProductPicture::CODE_DETAIL_PICTURE,
            ],
        );
 
        while ($product = $iblockElementList->Fetch())
        {
            $productId = (int)$product['ID'];
 
            if (!empty($product[ProductPicture::CODE_PREVIEW_PICTURE]))
            {
                $result[$productId] = (int)$product[ProductPicture::CODE_PREVIEW_PICTURE];
            }
            else if (!empty($product[ProductPicture::CODE_DETAIL_PICTURE]))
            {
                $result[$productId] = (int)$product[ProductPicture::CODE_DETAIL_PICTURE];
            }
            else
            {
                $productIblockId = (int)$product['IBLOCK_ID'];
                $productListToGetMorePhoto[$productIblockId] ??= [];
                $productListToGetMorePhoto[$productIblockId][] = $productId;
            }
        }
 
        if (!empty($productListToGetMorePhoto))
        {
            $productMorePhoto = ProductPicture::getMorePhoto($productListToGetMorePhoto);
            foreach ($productMorePhoto as $productId => $productPhotos)
            {
                $result[$productId] = array_shift($productPhotos);
            }
        }
 
        return $result;
    }
 
    private static function getMorePhoto(array $productList): array
    {
        $result = [];
 
        foreach ($productList as $iblockId => $productIdList)
        {
            $rawPropertyResult = [];
            \CIBlockElement::GetPropertyValuesArray(
                $rawPropertyResult,
                $iblockId,
                [
                    'ID' => $productIdList,
                ],
                [
                    'CODE' => ProductPicture::CODE_MORE_PHOTO,
                ],
                [
                    'GET_RAW_DATA' => 'Y',
                ],
            );
 
            foreach ($rawPropertyResult as $productId => $productProperty)
            {
                $productId = (int)$productId;
 
                if (!empty($productProperty[ProductPicture::CODE_MORE_PHOTO]))
                {
                    $photoValues = $productProperty[ProductPicture::CODE_MORE_PHOTO]['VALUE'];
 
                    if (empty($photoValues))
                    {
                        continue;
                    }
 
                    Collection::normalizeArrayValuesByInt($photoValues, false);
 
                    $result[$productId] = $photoValues;
                }
            }
        }
 
        return $result;
    }
}