<?php
class Production extends Vn\Web\JsonRequest
{
const PARAMS = ['deviceId'];
function run ($db)
$row = $db->getObject (
'SELECT displayText FROM vn.routeGate WHERE deviceId = #',
[$_REQUEST['deviceId']]
);
if (!isset($row))
throw new Vn\Lib\UserException ('Device not found');
return $row->displayText;
}