initskucollectionfromparams.php

<?php
 
namespace Bitrix\Catalog\Component\GridVariation;
 
use Bitrix\Catalog\Component\GridServiceForm;
use Bitrix\Catalog\Component\GridVariationForm;
use Bitrix\Catalog\v2\Barcode\Barcode;
use Bitrix\Catalog\v2\Sku\BaseSku;
use Bitrix\Catalog\v2\Sku\SkuCollection;
 
trait InitSkuCollectionFromParams
{
    protected function initFieldsSkuCollectionItems(SkuCollection $skuCollection, array $rows, bool $isServiceForm): void
    {
        if (empty($rows))
        {
            return;
        }
 
        foreach ($rows as $id => $row)
        {
            if (!is_array($row))
            {
                continue;
            }
 
            $isNew = (string)(int)$id !== (string)$id; // available exist: 564; new ids: oX03gdf, 000000001450000000
            $sku =
                $isNew
                    ? $skuCollection->create()
                    : $skuCollection->findById((int)$id)
            ;
            if (!($sku instanceof BaseSku))
            {
                continue;
            }
 
 
            $form = $isServiceForm ? new GridServiceForm($sku) : new GridVariationForm($sku);
            $fields = $form->prepareFieldsValues($row);
 
            $sku->setFields($fields);
 
            if (isset($fields['PROPERTIES']))
            {
                $sku->getPropertyCollection()->setValues($fields['PROPERTIES']);
            }
 
            if (isset($fields['PRICES']))
            {
                $sku->getPriceCollection()->setValues($fields['PRICES']);
            }
 
            if (isset($fields['MEASURE']))
            {
                $sku->getMeasureRatioCollection()->setDefault($fields['MEASURE']);
            }
 
            if (isset($fields['BARCODES']))
            {
                $existBarcodes = [];
 
                foreach ($sku->getBarcodeCollection() as $barcode)
                {
                    $code = $barcode->getBarcode();
                    if ($code)
                    {
                        $existBarcodes[$code] = $barcode;
                    }
                }
 
                foreach ($fields['BARCODES'] as $code)
                {
                    if (empty($code))
                    {
                        continue;
                    }
 
                    $existBarcode = $existBarcodes[$code] ?? null;
                    if ($existBarcode instanceof Barcode)
                    {
                        unset($existBarcodes[$code]);
                    }
                    else
                    {
                        $sku->getBarcodeCollection()->create()->setBarcode($code);
                    }
                }
 
                if ($existBarcodes)
                {
                    $sku->getBarcodeCollection()->remove(...$existBarcodes);
                }
            }
        }
    }
}