SC_Customer::getValue() で任意の項目をリアルタイムに取得する

SC_Customer.php

    public function getValue($keyname)
    {
        // リアルタイム表示
        switch ($keyname) {
            case 'point':
            case 'sf_id:
                $objQuery =& SC_Query_Ex::getSingletonInstance();
                $value = $objQuery->get($keyname, 'dtb_customer', 'customer_id = ?', array($_SESSION['customer']['customer_id']));
                $_SESSION['customer'][$keyname] = $value;
                return $value;
            default:
                return isset($_SESSION['customer'][$keyname]) ? $_SESSION['customer'][$keyname] : '';
        }
    }