| Аргумент | Возможный тип | Описание |
| $orderId | — | — |
$row = $this->db->query("
SELECT `amazonus_order_id`
FROM `" . DB_PREFIX . "amazonus_order`
WHERE `order_id` = " . (int)$orderId . "
LIMIT 1")->row;
if (isset($row['amazonus_order_id']) && !empty($row['amazonus_order_id'])) {
return $row['amazonus_order_id'];
}
return NULL;