PHP Mage_Tax_Model_Config::discountTax方法代码示例

 /**
  * Get configuration setting "Apply Discount On Prices Including Tax" value
  * Always apply discount first since AvaTax does not support line-level item discount amounts
  *
  * @param   null|int $store
  * @return  bool
  */
 public function discountTax($store = null)
 {
     if ($this->_getDataHelper()->isAvataxEnabled($store)) {
         return false;
     }
     return parent::discountTax($store);
 }

 /**
  * Get configuration setting "Apply Discount On Prices Including Tax" value
  * Always apply discount first since AvaTax does not support line-level item discount amounts
  *
  * @param   null|int $store
  * @return  bool
  */
 public function discountTax($store = null)
 {
     if (Mage::helper('avatax')->isAvataxEnabled($store)) {
         return false;
     }
     return parent::discountTax($store);
 }

 /**
  * Collect totals information about shipping
  *
  * @param   Mage_Sales_Model_Quote_Address $address
  * @return  Mage_Sales_Model_Quote_Address_Total_Shipping
  */
 public function collect(Mage_Sales_Model_Quote_Address $address)
 {
     parent::collect($address);
     $calc = $this->_calculator;
     $store = $address->getQuote()->getStore();
     $storeTaxRequest = $calc->getRateOriginRequest($store);
     $addressTaxRequest = $calc->getRateRequest($address, $address->getQuote()->getBillingAddress(), $address->getQuote()->getCustomerTaxClassId(), $store);
     $storeTaxRequest->setProductClassId($this->_config->getShippingTaxClass($store));
     $addressTaxRequest->setProductClassId($this->_config->getShippingTaxClass($store));
     $this->_areTaxRequestsSimilar = $calc->compareRequests($addressTaxRequest, $storeTaxRequest);
     $shipping = $taxShipping = $address->getShippingAmount();
     $baseShipping = $baseTaxShipping = $address->getBaseShippingAmount();
     $rate = $calc->getRate($addressTaxRequest);
     if ($this->_config->shippingPriceIncludesTax($store)) {
         if ($this->_areTaxRequestsSimilar) {
             $tax = $this->_round($calc->calcTaxAmount($shipping, $rate, true, false), $rate, true);
             $baseTax = $this->_round($calc->calcTaxAmount($baseShipping, $rate, true, false), $rate, true, 'base');
             $taxShipping = $shipping;
             $baseTaxShipping = $baseShipping;
             $shipping = $shipping - $tax;
             $baseShipping = $baseShipping - $baseTax;
             $taxable = $taxShipping;
             $baseTaxable = $baseTaxShipping;
             $isPriceInclTax = true;
         } else {
             $storeRate = $calc->getStoreRate($addressTaxRequest, $store);
             $storeTax = $calc->calcTaxAmount($shipping, $storeRate, true, false);
             $baseStoreTax = $calc->calcTaxAmount($baseShipping, $storeRate, true, false);
             $shipping = $calc->round($shipping - $storeTax);
             $baseShipping = $calc->round($baseShipping - $baseStoreTax);
             $tax = $this->_round($calc->calcTaxAmount($shipping, $rate, false, false), false, $rate);
             $baseTax = $this->_round($calc->calcTaxAmount($baseShipping, $rate, false, false), $rate, false, 'base');
             $taxShipping = $shipping + $tax;
             $baseTaxShipping = $baseShipping + $baseTax;
             $taxable = $shipping;
             $baseTaxable = $baseShipping;
             $isPriceInclTax = false;
         }
     } else {
         $tax = $this->_round($calc->calcTaxAmount($shipping, $rate, false, false), false, $rate);
         $baseTax = $this->_round($calc->calcTaxAmount($baseShipping, $rate, false, false), $rate, false, 'base');
         $taxShipping = $shipping + $tax;
         $baseTaxShipping = $baseShipping + $baseTax;
         $taxable = $shipping;
         $baseTaxable = $baseShipping;
         $isPriceInclTax = false;
     }
     $address->setTotalAmount('shipping', $shipping);
     $address->setBaseTotalAmount('shipping', $baseShipping);
     $address->setShippingInclTax($taxShipping);
     $address->setBaseShippingInclTax($baseTaxShipping);
     $address->setShippingTaxable($taxable);
     $address->setBaseShippingTaxable($baseTaxable);
     $address->setIsShippingInclTax($isPriceInclTax);
     if ($this->_config->discountTax($store)) {
         $address->setShippingAmountForDiscount($taxShipping);
         $address->setBaseShippingAmountForDiscount($baseTaxShipping);
     }
     return $this;
 }

 /**
  * Get configuration setting "Apply Discount On Prices Including Tax" value
  * Always apply discount first since AvaTax does not support line-level item discount amounts
  *
  * @param   null|int $store
  * @return  bool
  */
 public function discountTax($store = null)
 {
     if ($this->_getDataHelper()->isServiceEnabled($store)) {
         if ($this->_getTaxDataHelper()->priceIncludesTax($store)) {
             return true;
         }
         return false;
     }
     return parent::discountTax($store);
 }

 /**
  * Tax caclulation for shipping price
  *
  * @param   Mage_Sales_Model_Quote_Address $address
  * @param   Varien_Object $taxRateRequest
  * @return  Mage_Tax_Model_Sales_Total_Quote
  */
 protected function _calculateShippingTax(Mage_Sales_Model_Quote_Address $address, $taxRateRequest)
 {
     $store = $address->getQuote()->getStore();
     $shippingTaxClass = $this->_config->getShippingTaxClass($store);
     $shippingAmount = $address->getShippingAmount();
     $baseShippingAmount = $address->getBaseShippingAmount();
     $shippingDiscountAmount = $address->getShippingDiscountAmount();
     $baseShippingDiscountAmount = $address->getBaseShippingDiscountAmount();
     /**
      * Subtract discount before calculate tax amount
      */
     if ($this->_config->applyTaxAfterDiscount($store)) {
         $calcAmount = $shippingAmount - $shippingDiscountAmount;
         $baseCalcAmount = $baseShippingAmount - $baseShippingDiscountAmount;
     } else {
         $calcAmount = $shippingAmount;
         $baseCalcAmount = $baseShippingAmount;
     }
     $shippingTax = 0;
     $shippingBaseTax = 0;
     if ($shippingTaxClass) {
         $taxRateRequest->setProductClassId($shippingTaxClass);
         $rate = $this->_calculator->getRate($taxRateRequest);
         if ($rate) {
             if ($this->_config->shippingPriceIncludesTax($store) && $this->_areTaxRequestsSimilar) {
                 $shippingTax = $this->_calculator->calcTaxAmount($calcAmount, $rate, true);
                 $shippingBaseTax = $this->_calculator->calcTaxAmount($baseCalcAmount, $rate, true);
                 $shippingAmount -= $shippingTax;
                 $baseShippingAmount -= $shippingBaseTax;
             } else {
                 $shippingTax = $this->_calculator->calcTaxAmount($calcAmount, $rate);
                 $shippingBaseTax = $this->_calculator->calcTaxAmount($baseCalcAmount, $rate);
             }
             $address->setTotalAmount('shipping', $shippingAmount);
             $address->setBaseTotalAmount('shipping', $baseShippingAmount);
             /**
              * Provide additional attributes for apply discount on price include tax
              */
             if ($this->_config->discountTax($store)) {
                 $address->setShippingAmountForDiscount($shippingAmount + $shippingTax);
                 $address->setBaseShippingAmountForDiscount($baseShippingAmount + $shippingBaseTax);
             }
             $this->_addAmount($shippingTax);
             $this->_addBaseAmount($shippingBaseTax);
             $applied = $this->_calculator->getAppliedRates($taxRateRequest);
             $this->_saveAppliedTaxes($address, $applied, $shippingTax, $shippingBaseTax, $rate);
         }
     }
     $address->setShippingTaxAmount($shippingTax);
     $address->setBaseShippingTaxAmount($shippingBaseTax);
     return $this;
 }

 /**
  * Recollect item price and row total using after taxes subtract.
  * Declare item price including tax attributes
  *
  * @deprecated after 1.4.1
  *
  * @param   Mage_Sales_Model_Quote_Address $address
  * @param   Mage_Sales_Model_Quote_Item_Abstract $item
  *
  * @return  Mage_Tax_Model_Sales_Total_Quote_Subtotal
  */
 protected function _recollectItem($address, Mage_Sales_Model_Quote_Item_Abstract $item)
 {
     $store = $address->getQuote()->getStore();
     $request = $this->_getStoreTaxRequest($address);
     $request->setProductClassId($item->getProduct()->getTaxClassId());
     $rate = $this->_calculator->getRate($request);
     $qty = $item->getTotalQty();
     $price = $taxPrice = $item->getCalculationPriceOriginal();
     $basePrice = $baseTaxPrice = $item->getBaseCalculationPriceOriginal();
     $subtotal = $taxSubtotal = $item->getRowTotal();
     $baseSubtotal = $baseTaxSubtotal = $item->getBaseRowTotal();
     if ($this->_config->discountTax($store)) {
         $item->setDiscountCalculationPrice($price);
         $item->setBaseDiscountCalculationPrice($basePrice);
     }
     /**
      * Use original price for tax calculation
      */
     if ($item->hasCustomPrice() && !$this->_helper->applyTaxOnCustomPrice($store)) {
         $taxPrice = $item->getOriginalPrice();
         $baseTaxPrice = $item->getBaseOriginalPrice();
         $taxSubtotal = $taxPrice * $qty;
         $baseTaxSubtotal = $baseTaxPrice * $qty;
     }
     if ($this->_areTaxRequestsSimilar) {
         $item->setRowTotalInclTax($subtotal);
         $item->setBaseRowTotalInclTax($baseSubtotal);
         $item->setPriceInclTax($price);
         $item->setBasePriceInclTax($basePrice);
         $item->setTaxCalcPrice($taxPrice);
         $item->setBaseTaxCalcPrice($baseTaxPrice);
         $item->setTaxCalcRowTotal($taxSubtotal);
         $item->setBaseTaxCalcRowTotal($baseTaxSubtotal);
     }
     $this->_subtotalInclTax += $subtotal;
     $this->_baseSubtotalInclTax += $baseSubtotal;
     if ($this->_config->getAlgorithm($store) == Mage_Tax_Model_Calculation::CALC_UNIT_BASE) {
         $taxAmount = $this->_calculator->calcTaxAmount($taxPrice, $rate, true);
         $baseTaxAmount = $this->_calculator->calcTaxAmount($baseTaxPrice, $rate, true);
         $unitPrice = $this->_calculator->round($price - $taxAmount);
         $baseUnitPrice = $this->_calculator->round($basePrice - $baseTaxAmount);
         $subtotal = $this->_calculator->round($unitPrice * $qty);
         $baseSubtotal = $this->_calculator->round($baseUnitPrice * $qty);
     } else {
         $taxAmount = $this->_calculator->calcTaxAmount($taxSubtotal, $rate, true, false);
         $baseTaxAmount = $this->_calculator->calcTaxAmount($baseTaxSubtotal, $rate, true, false);
         $unitPrice = ($subtotal - $taxAmount) / $qty;
         $baseUnitPrice = ($baseSubtotal - $baseTaxAmount) / $qty;
         $subtotal = $this->_calculator->round($subtotal - $taxAmount);
         $baseSubtotal = $this->_calculator->round($baseSubtotal - $baseTaxAmount);
     }
     if ($item->hasCustomPrice()) {
         $item->setCustomPrice($unitPrice);
         $item->setBaseCustomPrice($baseUnitPrice);
     }
     $item->setPrice($baseUnitPrice);
     $item->setOriginalPrice($unitPrice);
     $item->setBasePrice($baseUnitPrice);
     $item->setRowTotal($subtotal);
     $item->setBaseRowTotal($baseSubtotal);
     return $this;
 }

 /**
  * Get configuration setting "Apply Discount On Prices Including Tax" value
  *
  * @param   null|int $store
  * @return  0|1
  */
 public function discountTax($store = null)
 {
     return $this->_config->discountTax($store);
 }

 /**
  * Collect totals information about shipping
  *
  * @param   Mage_Sales_Model_Quote_Address $address
  * @return  Mage_Sales_Model_Quote_Address_Total_Shipping
  */
 public function collect(Mage_Sales_Model_Quote_Address $address)
 {
     parent::collect($address);
     $calc = $this->_calculator;
     $store = $address->getQuote()->getStore();
     $storeTaxRequest = $calc->getRateOriginRequest($store);
     $addressTaxRequest = $calc->getRateRequest($address, $address->getQuote()->getBillingAddress(), $address->getQuote()->getCustomerTaxClassId(), $store);
     $shippingTaxClass = $this->_config->getShippingTaxClass($store);
     $storeTaxRequest->setProductClassId($shippingTaxClass);
     $addressTaxRequest->setProductClassId($shippingTaxClass);
     $priceIncludesTax = $this->_config->shippingPriceIncludesTax($store);
     if ($priceIncludesTax) {
         if ($this->_helper->isCrossBorderTradeEnabled($store)) {
             $this->_areTaxRequestsSimilar = true;
         } else {
             $this->_areTaxRequestsSimilar = $this->_calculator->compareRequests($storeTaxRequest, $addressTaxRequest);
         }
     }
     $shipping = $taxShipping = $address->getShippingAmount();
     $baseShipping = $baseTaxShipping = $address->getBaseShippingAmount();
     $rate = $calc->getRate($addressTaxRequest);
     if ($priceIncludesTax) {
         if ($this->_areTaxRequestsSimilar) {
             $tax = $this->_round($calc->calcTaxAmount($shipping, $rate, true, false), $rate, true);
             $baseTax = $this->_round($calc->calcTaxAmount($baseShipping, $rate, true, false), $rate, true, 'base');
             $taxShipping = $shipping;
             $baseTaxShipping = $baseShipping;
             $shipping = $shipping - $tax;
             $baseShipping = $baseShipping - $baseTax;
             $taxable = $taxShipping;
             $baseTaxable = $baseTaxShipping;
             $isPriceInclTax = true;
             $address->setTotalAmount('shipping', $shipping);
             $address->setBaseTotalAmount('shipping', $baseShipping);
         } else {
             $storeRate = $calc->getStoreRate($addressTaxRequest, $store);
             $storeTax = $calc->calcTaxAmount($shipping, $storeRate, true, false);
             $baseStoreTax = $calc->calcTaxAmount($baseShipping, $storeRate, true, false);
             $shipping = $calc->round($shipping - $storeTax);
             $baseShipping = $calc->round($baseShipping - $baseStoreTax);
             $tax = $this->_round($calc->calcTaxAmount($shipping, $rate, false, false), $rate, true);
             $baseTax = $this->_round($calc->calcTaxAmount($baseShipping, $rate, false, false), $rate, true, 'base');
             $taxShipping = $shipping + $tax;
             $baseTaxShipping = $baseShipping + $baseTax;
             $taxable = $taxShipping;
             $baseTaxable = $baseTaxShipping;
             $isPriceInclTax = true;
             $address->setTotalAmount('shipping', $shipping);
             $address->setBaseTotalAmount('shipping', $baseShipping);
         }
     } else {
         $appliedRates = $calc->getAppliedRates($addressTaxRequest);
         $taxes = array();
         $baseTaxes = array();
         foreach ($appliedRates as $appliedRate) {
             $taxRate = $appliedRate['percent'];
             $taxId = $appliedRate['id'];
             $taxes[] = $this->_round($calc->calcTaxAmount($shipping, $taxRate, false, false), $taxId, false);
             $baseTaxes[] = $this->_round($calc->calcTaxAmount($baseShipping, $taxRate, false, false), $taxId, false, 'base');
         }
         $tax = array_sum($taxes);
         $baseTax = array_sum($baseTaxes);
         $taxShipping = $shipping + $tax;
         $baseTaxShipping = $baseShipping + $baseTax;
         $taxable = $shipping;
         $baseTaxable = $baseShipping;
         $isPriceInclTax = false;
         $address->setTotalAmount('shipping', $shipping);
         $address->setBaseTotalAmount('shipping', $baseShipping);
     }
     $address->setShippingInclTax($taxShipping);
     $address->setBaseShippingInclTax($baseTaxShipping);
     $address->setShippingTaxable($taxable);
     $address->setBaseShippingTaxable($baseTaxable);
     $address->setIsShippingInclTax($isPriceInclTax);
     if ($this->_config->discountTax($store)) {
         $address->setShippingAmountForDiscount($taxShipping);
         $address->setBaseShippingAmountForDiscount($baseTaxShipping);
     }
     return $this;
 }

//.........这里部分代码省略.........
     $baseSubtotal = $baseTaxSubtotal = $item->getBaseRowTotal();
     $taxOnOrigPrice = !$this->_helper->applyTaxOnCustomPrice($this->_store) && $item->hasCustomPrice();
     if ($taxOnOrigPrice) {
         $origSubtotal = $item->getOriginalPrice() * $qty;
         $baseOrigSubtotal = $item->getBaseOriginalPrice() * $qty;
     }
     $item->setTaxPercent($rate);
     if ($this->_config->priceIncludesTax($this->_store)) {
         if ($this->_sameRateAsStore($request)) {
             if ($taxOnOrigPrice) {
                 $rowTax = $this->_deltaRound($calc->calcTaxAmount($origSubtotal, $rate, true, false), $rate, true);
                 $baseRowTax = $this->_deltaRound($calc->calcTaxAmount($baseOrigSubtotal, $rate, true, false), $rate, true, 'base');
                 $taxable = $origSubtotal;
                 $baseTaxable = $baseOrigSubtotal;
             } else {
                 $rowTax = $this->_deltaRound($calc->calcTaxAmount($subtotal, $rate, true, false), $rate, true);
                 $baseRowTax = $this->_deltaRound($calc->calcTaxAmount($baseSubtotal, $rate, true, false), $rate, true, 'base');
                 $taxable = $subtotal;
                 $baseTaxable = $baseSubtotal;
             }
             $taxPrice = $price;
             $baseTaxPrice = $basePrice;
             $taxSubtotal = $subtotal;
             $baseTaxSubtotal = $baseSubtotal;
             $subtotal = $subtotal - $rowTax;
             $baseSubtotal = $baseSubtotal - $baseRowTax;
             $price = $calc->round($subtotal / $qty);
             $basePrice = $calc->round($baseSubtotal / $qty);
             $isPriceInclTax = true;
         } else {
             $storeRate = $calc->getStoreRate($request, $this->_store);
             if ($taxOnOrigPrice) {
                 $storeTax = $calc->calcTaxAmount($origSubtotal, $storeRate, true, false);
                 $baseStoreTax = $calc->calcTaxAmount($baseOrigSubtotal, $storeRate, true, false);
             } else {
                 $storeTax = $calc->calcTaxAmount($subtotal, $storeRate, true, false);
                 $baseStoreTax = $calc->calcTaxAmount($baseSubtotal, $storeRate, true, false);
             }
             $subtotal = $calc->round($subtotal - $storeTax);
             $baseSubtotal = $calc->round($baseSubtotal - $baseStoreTax);
             $price = $calc->round($subtotal / $qty);
             $basePrice = $calc->round($baseSubtotal / $qty);
             $rowTax = $this->_deltaRound($calc->calcTaxAmount($subtotal, $rate, false, false), $rate, true);
             $baseRowTax = $this->_deltaRound($calc->calcTaxAmount($baseSubtotal, $rate, false, false), $rate, true, 'base');
             $taxSubtotal = $subtotal + $rowTax;
             $baseTaxSubtotal = $baseSubtotal + $baseRowTax;
             $taxPrice = $calc->round($taxSubtotal / $qty);
             $baseTaxPrice = $calc->round($baseTaxSubtotal / $qty);
             $taxable = $subtotal;
             $baseTaxable = $baseSubtotal;
             $isPriceInclTax = false;
         }
     } else {
         if ($taxOnOrigPrice) {
             $rowTax = $this->_deltaRound($calc->calcTaxAmount($origSubtotal, $rate, false, false), $rate, true);
             $baseRowTax = $this->_deltaRound($calc->calcTaxAmount($baseOrigSubtotal, $rate, false, false), $rate, true, 'base');
             $taxable = $origSubtotal;
             $baseTaxable = $baseOrigSubtotal;
         } else {
             $rowTax = $this->_deltaRound($calc->calcTaxAmount($subtotal, $rate, false, false), $rate, true);
             $baseRowTax = $this->_deltaRound($calc->calcTaxAmount($baseSubtotal, $rate, false, false), $rate, true, 'base');
             $taxable = $subtotal;
             $baseTaxable = $baseSubtotal;
         }
         $taxSubtotal = $subtotal + $rowTax;
         $baseTaxSubtotal = $baseSubtotal + $baseRowTax;
         $taxPrice = $calc->round($taxSubtotal / $qty);
         $baseTaxPrice = $calc->round($baseTaxSubtotal / $qty);
         $isPriceInclTax = false;
     }
     if ($item->hasCustomPrice()) {
         /**
          * Initialize item original price before declaring custom price
          */
         $item->getOriginalPrice();
         $item->setCustomPrice($price);
         $item->setBaseCustomPrice($basePrice);
     } else {
         $item->setConvertedPrice($price);
     }
     $item->setPrice($basePrice);
     $item->setBasePrice($basePrice);
     $item->setRowTotal($subtotal);
     $item->setBaseRowTotal($baseSubtotal);
     $item->setPriceInclTax($taxPrice);
     $item->setBasePriceInclTax($baseTaxPrice);
     $item->setRowTotalInclTax($taxSubtotal);
     $item->setBaseRowTotalInclTax($baseTaxSubtotal);
     $item->setTaxableAmount($taxable);
     $item->setBaseTaxableAmount($baseTaxable);
     $item->setIsPriceInclTax($isPriceInclTax);
     if ($this->_config->discountTax($this->_store)) {
         $item->setDiscountCalculationPrice($taxSubtotal / $qty);
         $item->setBaseDiscountCalculationPrice($baseTaxSubtotal / $qty);
     } elseif ($isPriceInclTax) {
         $item->setDiscountCalculationPrice($subtotal / $qty);
         $item->setBaseDiscountCalculationPrice($baseSubtotal / $qty);
     }
     return $this;
 }