How to change the weight before sending to fedex magento? - magento

Question

In magento checkout page, after giving billing information and shipping information, i understand that these details are sending to fedex then the shipping rates are populating in chekout page, before sending theses details to fedex, i want to change the weight of the product, i Want to add additional weights for each products,
suppose user adding a product with weight of 2 pounds, i want to send
these weight to 2*5 = 10pounds, how can i do that in magento? please
help.

Answer 1

Not sure to understand what you want exactly but I'll give a try.
I think you can override Mage_Checkout_OnepageController::savePaymentAction method in your local pool and in your local method, dispatch your own new event 'save_payment_action_before' and pass your objects as parameters.
In your fedex module, create an observer, get your object and change the order weight before it's sent to fedex.
To create your custom event, check this post

Answer 2

Finally i find out that it is happening in the sales/quote/item.php file, there is a function called setProduct, here we need to add addititonal info while setting data.
public function setProduct($product)
{
$batchQty = Mage::getModel('catalog/product')->load($product->getId())->getBatchQty();
$roleId = Mage::getSingleton('customer/session')->getCustomerGroupId();
$userrole = Mage::getSingleton('customer/group')->load($roleId)->getData('customer_group_code');
$userrole = strtolower($userrole);
if ($this->getQuote()) {
$product->setStoreId($this->getQuote()->getStoreId());
$product->setCustomerGroupId($this->getQuote()->getCustomerGroupId());
}
if($userrole=="retailer" && $batchQty>0 ){
$this->setData('product', $product)
->setProductId($product->getId())
->setProductType($product->getTypeId())
->setSku($this->getProduct()->getSku())
->setName($product->getName())
->setWeight($this->getProduct()->getWeight()*$batchQty)
->setTaxClassId($product->getTaxClassId())
->setBaseCost($product->getCost())
->setIsRecurring($product->getIsRecurring());
} else {
$this->setData('product', $product)
->setProductId($product->getId())
->setProductType($product->getTypeId())
->setSku($this->getProduct()->getSku())
->setName($product->getName())
->setWeight($this->getProduct()->getWeight())
->setTaxClassId($product->getTaxClassId())
->setBaseCost($product->getCost())
->setIsRecurring($product->getIsRecurring());
}
if ($product->getStockItem()) {
$this->setIsQtyDecimal($product->getStockItem()->getIsQtyDecimal());
}
Mage::dispatchEvent('sales_quote_item_set_product', array(
'product' => $product,
'quote_item' => $this
));
return $this;
}