app\models\PaymentMethod::gatewayType PHP Method

    public function gatewayType()
    {
        if ($this->payment_type_id == PAYMENT_TYPE_ACH) {
            return GATEWAY_TYPE_BANK_TRANSFER;
        } elseif ($this->payment_type_id == PAYMENT_TYPE_PAYPAL) {
            return GATEWAY_TYPE_PAYPAL;
        } else {
            return GATEWAY_TYPE_TOKEN;
        }
    }