public function byId(Map\Request\ById $req)
{
$result = new Response\ById();
/* extract parameters from request */
$asId = $req->getAsId();
$toMap = $req->getDataToMap();
$mapped = [];
foreach ($toMap as $item) {
$mapped[$item[$asId]] = $item;
}
$result->setMapped($mapped);
$result->markSucceed();
return $result;
}
