php - Magento:结帐时对额外费用征税错误

Question

我在结帐时添加了额外费用，但税金计算不正确。

税额加起来不正确，如果我这样做 $this->_calculateTax($address);在收集功能中，它被加到含税总额中，但我的税额仍然是那时的。

如果 var_dump 是在 $address->setAppliedTaxes($previouslyAppliedTaxes) 行之后设置的应用税；我确实看到了正确的数量。它转储了两次，第一次我看到的只是我的额外费用的正确税额，第二次是正确的总税额。但是在前端显示的是不含我额外费用税的税。

关于这可能是什么的任何线索？

    class Company_Customer_Model_Quote_Address_Total_PrintPrepCosts extends Mage_Sales_Model_Quote_Address_Total_Abstract
{
    public function __construct() {
        $this->setCode('printPrepCosts');
        $this->_store = Mage::app()->getStore();
        return $this;
    }

public function collect(Mage_Sales_Model_Quote_Address $address)
    {
        parent::collect($address);
        $address->setPrintPrepcosts(0);
        $address->setTaxAmount(0);
        $address->setBaseTaxAmount(0);

        if(count($address->getAllItems()) == 0)
        {
            return $this;
        }

        $pricePrint = $this->calcTotalPrintPrepCosts();

        $address->setPrintPrepcosts($pricePrint);
        $address->setBasePrintPrepcosts($pricePrint);

        $address->setBaseGrandTotal($address->getBaseGrandTotal() + $address->getPrintPrepcosts());
        $address->setGrandTotal($address->getGrandTotal() + $address->getPrintPrepcosts());

        $this->_calculateTax($address);
        return $this;
    }

    protected function _calculateTax(Mage_Sales_Model_Quote_Address $address)
    {
        $calculator     = Mage::getSingleton('tax/calculation');
        $inclTax        = Mage::getStoreConfig('tax/calculation/printing_prep_includes_tax', $this->_store);

        $taxRateRequest = $calculator->getRateRequest(
            $address,
            $address->getQuote()->getBillingAddress(),
            $address->getQuote()->getCustomerTaxClassId(),
            $this->_store
        );

        // TODO undef prop _store
        $taxRateRequest->setProductClassId(Mage::getStoreConfig('tax/classes/printing_prep_tax_class', $this->_store));

        $rate = $calculator->getRate($taxRateRequest);
        $baseTax = $tax = $calculator->calcTaxAmount($address->getPrepPrintcosts(), $rate, $inclTax, true);

        $address->addTotalAmount('tax', max(0, $tax));
        $address->addBaseTotalAmount('tax', max(0, $baseTax));

        $this->_saveAppliedTaxes($address, 
            $calculator->getAppliedRates($taxRateRequest), 
            $tax, 
            $baseTax, 
            $rate
        );

        // later on added - which fixes the total, lose tax amount still off
        $address->setTaxAmount($tax);
        $address->setBaseTaxAmount($baseTax);

        if($inclTax)
        {
            $address->setBaseGrandTotal($address->getBaseGrandTotal() - $baseTax);
            $address->setGrandTotal($address->getGrandTotal() - $tax);
        }
    }

    protected function _saveAppliedTaxes(Mage_Sales_Model_Quote_Address $address, $applied, $amount, $baseAmount, $rate)
    {
        $previouslyAppliedTaxes = $address->getAppliedTaxes();
        $process = count($previouslyAppliedTaxes);


        foreach ($applied as $row) {
            if (!isset($previouslyAppliedTaxes[$row['id']])) {
                $row['process'] = $process;
                $row['amount'] = 0;
                $row['base_amount'] = 0;
                $previouslyAppliedTaxes[$row['id']] = $row;
            }

            if (!is_null($row['percent'])) {
                $row['percent'] = $row['percent'] ? $row['percent'] : 1;
                $rate = $rate ? $rate : 1;

                $appliedAmount = $amount/$rate*$row['percent'];
                $baseAppliedAmount = $baseAmount/$rate*$row['percent'];
            } else {
                $appliedAmount = 0;
                $baseAppliedAmount = 0;
                foreach ($row['rates'] as $rate) {
                    $appliedAmount += $rate['amount'];
                    $baseAppliedAmount += $rate['base_amount'];
                }
            }


            if ($appliedAmount || $previouslyAppliedTaxes[$row['id']]['amount']) {
                $previouslyAppliedTaxes[$row['id']]['amount'] += $appliedAmount;
                $previouslyAppliedTaxes[$row['id']]['base_amount'] += $baseAppliedAmount;
            } else {
                unset($previouslyAppliedTaxes[$row['id']]);
            }
        }
        $address->setAppliedTaxes($previouslyAppliedTaxes);        
    }

    public function fetch(Mage_Sales_Model_Quote_Address $address)
    {
        $address->addTotal(array(
            'code'  => $this->getCode(),
            'title' => "Prep Print costs",
            'value' => $address->getPrintPrepcosts(),
        ));
        return $this;
    }

编辑 1 XML 包含以下内容:

        <sales>
        <quote>
            <totals>
                <printPrepCosts>
                    <class>Company_Customer_Model_Quote_Address_Total_PrintPrepCosts</class>
                    <after>subtotal</after>
                    <before>tax</before>
                </printPrepCosts>
            </totals>
        </quote>
    </sales>

编辑 2 我已将以下行添加到我的 calcTax 函数中，这确实修复了总计，但 TAX 的数量仍然关闭。

  $address->setTaxAmount($tax);
  $address->setBaseTaxAmount($baseTax);

输出 - 示例

Subtotal    € 67,50
printPrepCosts  € 40,00
Shipping    € 50,00
TAX     € 22,33
Total   € 187,43

编辑 3 我的错，只有 GoMage 单页结帐给出正确的总计，购物车没有。常规的 Magento 单页结帐也会给出错误的总计。

Answer 1

我找到了一个解决方法，它不是最好的解决方案，但它确实有效:)

在我的地址中，我会将税收设置为一个名为 tax 的额外变量，并在观察者中使用它来操纵税收。

class Company_Client_Model_Observer
{   
    public function setCorrectTax ($observer)
    {
        $quote = $observer->getQuote();
        foreach ($quote->getAllAddresses() as $address) {
            $printPrepCosts = $address->getPrintPrepcosts();
            if(!empty($printPrepCosts)) {
                $address->setTaxAmount($address->tax);
            }
        }
    }
}

和 XML

    <events>
    <sales_quote_collect_totals_after>
        <observers>
            <client>
                <type>singleton</type>
                <class>client/observer</class>
                <method>setCorrectTax</method>
            </client>
        </observers>
    </sales_quote_collect_totals_after>
    </events>