iblock.php

См. документацию.

<?php
 
namespace Bitrix\Iblock;
 
use Bitrix\Iblock\ORM\CommonElementTable;

class Iblock extends EO_Iblock
{
    public function getEntityDataClassName()
    {
        $code = $this->fillApiCode();
 
        if($code <> '')
        {
            return IblockTable::DATA_CLASS_PREFIX.ucfirst($code).'Table';
        }
    }

    public function getEntityDataClass()
    {
        $className = $this->getEntityDataClassName();
 
        if($className <> '')
        {
            return '\\'.IblockTable::DATA_CLASS_NAMESPACE.'\\'.$className;
        }
 
        trigger_error('API_CODE required for DataClass of iblock #'.$this->getId(), E_USER_WARNING);
    }
}