mediasource dynamic path in filemanager

$params = $modx->fromJson($scriptProperties['properties']);
if($modx->resource->id){
    $params['basePath']['value'] = str_replace('|id|',$modx->resource->id,$params['basePath']['value']);
    $params['baseUrl']['value'] = str_replace('|id|',$modx->resource->id,$params['baseUrl']['value']);
    if(!file_exists($modx->getOption('base_path').$params['basePath']['value']))mkdir($modx->getOption('base_path').$params['basePath']['value'], 0766);
}
$modx->log(1,print_r($params,true));
$modx->event->output($modx->toJson($params));
return;