/**
* Checks whether request for an item has same rate as store one
* Used only after collect() started, as far as uses optimized $_areTaxRequestsSimilar property
* Used only in case of prices including tax
*
* @param Varien_Object $request
*
* @return bool
*/
protected function _sameRateAsStore($request)
{
// Maybe we know that all requests for currently collected items have same rates
if ($this->_areTaxRequestsSimilar) {
return true;
}
// Check current request individually
$rate = $this->_calculator->getRate($request);
$storeRate = $this->_calculator->getStoreRate($request, $this->_store);
return $rate == $storeRate;
}
/**
* Calculate item price and row total including/excluding tax based on row total price rounding level
*
* @param Mage_Sales_Model_Quote_Item_Abstract $item
* @param Varien_Object $request
* @return Mage_Tax_Model_Sales_Total_Quote_Subtotal
*/
protected function _rowBaseCalculation($item, $request)
{
$rate = $this->_calculator->getRate($request->setProductClassId($item->getProduct()->getTaxClassId()));
$qty = $item->getTotalQty();
$price = $taxPrice = $item->getCalculationPrice();
$basePrice = $baseTaxPrice = $item->getBaseCalculationPrice();
$subtotal = $taxSubtotal = $item->getRowTotal();
$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->_areTaxRequestsSimilar) {
$rowTax = $this->_calculator->calcTaxAmount($subtotal, $rate, true);
$baseRowTax = $this->_calculator->calcTaxAmount($baseSubtotal, $rate, true);
$taxPrice = $price;
$baseTaxPrice = $basePrice;
$taxSubtotal = $subtotal;
$baseTaxSubtotal = $baseSubtotal;
$subtotal = $subtotal - $rowTax;
$baseSubtotal = $baseSubtotal - $baseRowTax;
$price = $this->_calculator->round($subtotal / $qty);
$basePrice = $this->_calculator->round($baseSubtotal / $qty);
if ($taxOnOrigPrice) {
$taxable = $origSubtotal;
$baseTaxable = $baseOrigSubtotal;
} else {
$taxable = $taxSubtotal;
$baseTaxable = $baseTaxSubtotal;
}
$isPriceInclTax = true;
} else {
$storeRate = $this->_calculator->getStoreRate($request, $this->_store);
$storeTax = $this->_calculator->calcTaxAmount($subtotal, $storeRate, true, false);
$baseStoreTax = $this->_calculator->calcTaxAmount($baseSubtotal, $storeRate, true, false);
$subtotal = $this->_calculator->round($subtotal - $storeTax);
$baseSubtotal = $this->_calculator->round($baseSubtotal - $baseStoreTax);
$price = $this->_calculator->round($subtotal / $qty);
$basePrice = $this->_calculator->round($baseSubtotal / $qty);
$rowTax = $this->_calculator->calcTaxAmount($subtotal, $rate, false);
$baseRowTax = $this->_calculator->calcTaxAmount($baseSubtotal, $rate, false);
$taxSubtotal = $subtotal + $rowTax;
$baseTaxSubtotal = $baseSubtotal + $baseRowTax;
$taxPrice = $this->_calculator->round($taxSubtotal / $qty);
$baseTaxPrice = $this->_calculator->round($baseTaxSubtotal / $qty);
if ($taxOnOrigPrice) {
$taxable = $this->_calculator->round($origSubtotal - $storeTax);
$baseTaxable = $this->_calculator->round($baseOrigSubtotal - $baseStoreTax);
} else {
$taxable = $subtotal;
$baseTaxable = $baseSubtotal;
}
$isPriceInclTax = false;
}
} else {
$rowTax = $this->_calculator->calcTaxAmount($subtotal, $rate, false);
$baseRowTax = $this->_calculator->calcTaxAmount($baseSubtotal, $rate, false);
$taxSubtotal = $subtotal + $rowTax;
$baseTaxSubtotal = $baseSubtotal + $baseRowTax;
$taxPrice = $this->_calculator->round($taxSubtotal / $qty);
$baseTaxPrice = $this->_calculator->round($baseTaxSubtotal / $qty);
if ($taxOnOrigPrice) {
$taxable = $origSubtotal;
$baseTaxable = $baseOrigSubtotal;
} else {
$taxable = $subtotal;
$baseTaxable = $baseSubtotal;
}
$isPriceInclTax = false;
}
if ($item->hasCustomPrice()) {
$item->setCustomPrice($price);
$item->setBaseCustomPrice($basePrice);
} else {
$item->setOriginalPrice($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;
}
