SimpleSku.php

<?php
 
namespace Bitrix\Catalog\v2\Sku;
 
use Bitrix\Catalog\v2\BaseEntity;
use Bitrix\Catalog\v2\BaseIblockElementEntity;
use Bitrix\Catalog\v2\Fields\FieldStorage;
use Bitrix\Catalog\v2\Image\ImageCollection;
use Bitrix\Catalog\v2\Property\PropertyCollection;
use Bitrix\Main\NotSupportedException;
use Bitrix\Main\Result;
 
class SimpleSku extends BaseSku
{
    public function getParent(): BaseEntity
    {
        $parent = parent::getParent();
 
        if (!$parent)
        {
            throw new NotSupportedException(sprintf('{%s} must have a parent.', static::class));
        }
 
        return $parent;
    }
 
    protected function createFieldStorage(): FieldStorage
    {
        return $this->getParent()->getFieldStorage();
    }
 
    protected function loadPropertyCollection(): PropertyCollection
    {
        return $this->getParent()->getPropertyCollection();
    }
 
    protected function unsetPropertyCollection(): BaseIblockElementEntity
    {
        if ($parent = $this->getParent())
        {
            $parent->unsetPropertyCollection();
        }
 
        return parent::unsetPropertyCollection();
    }
 
    protected function loadImageCollection(): ImageCollection
    {
        return $this->getParent()->getImageCollection();
    }
 
    protected function unsetImageCollection(): BaseIblockElementEntity
    {
        if ($parent = $this->getParent())
        {
            $parent->unsetImageCollection();
        }
 
        return parent::unsetImageCollection();
    }
 
    public function setPropertyCollection(PropertyCollection $propertyCollection): BaseIblockElementEntity
    {
        // avoiding reinitialize of property collection with our simple sku parent
        $this->propertyCollection = $propertyCollection;
 
        return $this;
    }
 
    public function deleteInternal(): Result
    {
        $result = new Result();
 
        // delete child collections without entity fields itself (it was deleted with parent product entity)
        foreach ($this->getChildCollections(true) as $childCollection)
        {
            $res = $childCollection->deleteInternal();
 
            if (!$res->isSuccess())
            {
                $result->addErrors($res->getErrors());
            }
        }
 
        return $result;
    }
}