Magento – Add Custom Total to Cart’s GrandTotal in Magento

checkoutmoduletotals

I'm trying to add an oversized fee for large products. Most of what that entails is a little more complicated than I want to explain here. Basically, I've built a custom function to check if the product is oversized and assign the appropriate shipping cost. However, I can't figure out how to get that value added into the grand total at check out.

Best Answer

Magento automatically combines the subtotal and grandtotal of the addresses for you, see Mage_Sales_Model_Quote::collectTotals

        $this->setSubtotal((float) $this->getSubtotal()+$address->getSubtotal());
        $this->setBaseSubtotal((float) $this->getBaseSubtotal()+$address->getBaseSubtotal());

        $this->setGrandTotal((float) $this->getGrandTotal()+$address->getGrandTotal());
        $this->setBaseGrandTotal((float) $this->getBaseGrandTotal()+$address->getBaseGrandTotal());

Adding your extra charge to the address subtotal and grandtotal will ensure it is reflected in the overall grand total.

For more in depth reading on the checkout process I can thoroughly recommend this post by Chris @ Classy Llama.

Related Solutions

Magento – Surcharge Fee not included in tax calculation

You have to check, whether the totals are in the correct order, because magento is sill buggy here.

Hook here in: \Mage_Sales_Model_Config_Ordered::_getSortedCollectorCodes and check wether the returned $sortedCollectors is in the correct order.

The problem is, magento doesn't sort correctly. If the order is wrong, add more totals to <before> and <after> node, until it works. You can just add more totals comma seperated like <before>tax,grand_total,subtotal</before>

Good luck!

Magento 1.8 – How to Exclude Shipping Tax in Grand Total

usually we do in the following way

do a local ovveride of app/code/core/Mage/Checkout/Block/Cart/Totals.php

and look for the function

public function renderTotal($total, $area = null, $colspan = 1)
{
    $code = $total->getCode();
    if ($total->getAs()) {
        $code = $total->getAs();
    }
    if($code == 'code_to_skip')
        return(''); //does not rendere the unwanted total row
    return $this->_getTotalRenderer($code)
        ->setTotal($total)
        ->setColspan($colspan)
        ->setRenderingArea(is_null($area) ? -1 : $area)
        ->toHtml();
}

this is the function that renders the totals to html check the $code by logging them and skip the unwanted one

hope this help

Best Answer

Related Solutions

Magento – Surcharge Fee not included in tax calculation

Magento 1.8 – How to Exclude Shipping Tax in Grand Total

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