Question

我想做什么让购物车物品对象并将其存储在新变量中，循环使用它们，更改价格然后我想重新计算新总额的税。

如何尽可能地实现这一目标。

这是我制作的代码，但可以理解的是，由于我无法做到这一点而无法重新计算税款：

            $items=$address ;// add is of type Mage_Sales_Model_Quote_Address $address

            foreach ($items->getQuote()->getAllVisibleItems() as $item){
                if ($items->getParentItem()) {
                    continue;
                }
                try{
                    if ($item){
                        $qty        = $item->getTotalQty();
                        $total      = $item->getCalculationPrice()*$qty*2;
                        $baseTotal  = $item->getBaseCalculationPrice()*$qty*2;

                        $item->setRowTotal(Mage::app()->getStore()->roundPrice($total)); 
                        $item->setBaseRowTotal(Mage::app()->getStore()->roundPrice($baseTotal)); 
                        $item->save();
                    }
                }catch (Exception $e){

                }

            }

            $baseTax = ($items->getTaxBeforeDiscount() ? $items->getTaxBeforeDiscount() : ($items->getTaxAmount() ? $items->getTaxAmount() : 0));
            $tax = ($items->getBaseTaxBeforeDiscount() ? $items->getBaseTaxBeforeDiscount() : ($items->getBaseTaxAmount() ? $items->getBaseTaxAmount() : 0));

Answer 1

您可以使用地址'税额和总额来计算税/增值税率。更新地址后，总计使用费率计算新的税额。

看一下以下示例

/* calculate ratio */
$ratio = ($address->getTaxAmount() / $address->getGrandTotal());
$baseRatio = ($address->getBaseTaxAmount() / $address->getBaseGrandTotal());

/* do price changes */
$address->setGrandTotal(...);
$address->setBaseGrandTotal(...);
/* ... */

/* set new tax amount */
$address->setTaxAmount($address->getGrandTotal() * $ratio);
$address->setBaseTaxAmount($address->getBaseGrandTotal() * $baseRatio);

$address->save();

Magento：如何轻松地重新计算特定总额的税收

1 个答案: