On the product screen I have the freight calculation and I have created free shipping rules, how to adptar the current function for that same check of the rule and I get free shipping freight when it is free shipping?
private function getShippingEstimate ( $_product, $postcode, $productQty, $countryId = "BR" ) {
$quote = Mage::getModel('sales/quote')->setStoreId(1);
$_product->getStockItem()->setUseConfigManageStock(false);
$_product->getStockItem()->setManageStock(false);
$quote->addProduct($_product, $productQty);
$quote->getShippingAddress()->setCountryId($countryId)->setPostcode($postcode);
$quote->getShippingAddress()->setCollectShippingRates(true);
$quote->getShippingAddress()->collectShippingRates();
$quote->setCustomerGroupId(0);
$quote->setCouponCode('');
$_rates = $quote->getShippingAddress()->getAllShippingRates();
$shippingRates = array();
foreach ($_rates as $_rate):
if ($_rate->getMethodTitle() != "") {
$quote->getShippingAddress()->setShippingMethod($_rate->getCode())->setCollectShippingRates(false);
$quote->collectTotals();
$discount = $quote->getShippingAddress()->getDiscountAmount() * -1;
$shippingRates[] = array("title" => $_rate->getMethodTitle(), "price" => ($_rate->getPrice()-$discount));
}
endforeach;
// set postcode in cart quote.
$this->_setCartPostCode($postcode);
return $shippingRates;
}