private function getSent($orderId)
    {
        //Getting connection
        $connection  = $this->_resource->getConnection();
        //Getting full table name
        $tableName = $this->_resource->getTableName('pagseguro_orders');
        //Update sales_order_grid query
        $mapsDeleteQuery = "SELECT sent FROM {$tableName} WHERE order_id={$orderId}";
        return $connection->query($mapsDeleteQuery)->fetch();
    }