Eccube\Service\ShoppingService::calculateDeliveryFee PHP Method

    public function calculateDeliveryFee(Order $Order)
    {
        // 配送業者を取得
        $shippings = $Order->getShippings();
        // 配送料合計金額
        $Order->setDeliveryFeeTotal($this->getShippingDeliveryFeeTotal($shippings));
        // 配送料無料条件(合計金額)
        $this->setDeliveryFreeAmount($Order);
        // 配送料無料条件(合計数量)
        $this->setDeliveryFreeQuantity($Order);
        return $Order;
    }