lock.php

См. документацию.

<?php
namespace Bitrix\Lists\Controller;
 
use Bitrix\Lists\Security\ElementRight;
 
class Lock extends Element
{
    public function lockAction()
    {
        $param = $this->getParamFromRequest();
        $params = $param->getParams();
 
        $this->checkPermission($param, ElementRight::EDIT);
        if ($this->getErrors())
        {
            $this->addErrors($this->getErrors());
            return null;
        }
 
        \CIBlockElement::WF_Lock($params["ELEMENT_ID"], false);
    }
 
    public function unLockAction()
    {
        $param = $this->getParamFromRequest();
        $params = $param->getParams();
 
        $this->checkPermission($param, ElementRight::EDIT);
        if ($this->getErrors())
        {
            $this->addErrors($this->getErrors());
            return null;
        }
 
        \CIBlockElement::WF_UnLock($params["ELEMENT_ID"], false);
    }
}