entity.php

<?php
 
 
namespace Bitrix\Sale\Rest\Synchronization\Loader;
 
 
use Bitrix\Main\ArgumentException;
use Bitrix\Sale\Registry;
 
class Entity
{
    protected $params;
    protected $typeName;
 
    public function __construct($typeName, $params=[])
    {
        $this->typeName = $typeName;
        $this->params = $params;
    }
 
    protected function getAdditionalFilterFileds()
    {
        return [];
    }
 
    protected function getExternalNameField()
    {
        return 'XML_ID';
    }
 
    protected function getFields()
    {
        return ['ID', $this->getExternalNameField()];
    }
 
    public function getParams()
    {
        return $this->params;
    }
 
    public function getFieldsByExternalId($xmlId)
    {
        if($xmlId === "")
        {
            return null;
        }
 
        $entity = $this->getEntityTable();
 
        if($r = $entity::getList([
            'select' => $this->getFields(),
            'filter' => array_merge(
                [
                    $this->getExternalNameField() => $xmlId
                ],
                $this->getAdditionalFilterFileds()
            ),
            'order' => ['ID' => 'ASC']
            ])->fetch()
        )
        {
            return $r['ID'];
        }
 
        return null;
    }
 
    public function getRegistryType()
    {
        return Registry::REGISTRY_TYPE_ORDER;
    }
 
    protected function getEntityTable()
    {
        $instance = Registry::getInstance($this->getRegistryType());
        return $instance->get($this->typeName);
    }
}