How can i add "Cash on Delivery" Charges in PDF Invoice in Magento

Question

In Magento PDF invoice the Payment Method is Showing as COD but the COD Charges is not appearing in PDF, how can i display COD Charges in PDF invoice.

in PDF invoice it will appear like this :

Subtotal: AED 672.00
Discount: -AED 20.00
Shipping & Handling: AED 20.00
Grand Total: AED 672.00

But in Actual Order

Subtotal: AED 672.00
Discount: -AED 20.00
COD Charges : AED 15.00
Shipping & Handling: AED 20.00
Grand Total: AED 687.00

Answer 1

I don't know how you add COD Charges in the order so I will write a code how to add COD Charges only in PDF Invoice in Magento core files. I highly recommend to transfer this code in the custom module that you are using.

in app/code/core/Mage/Sales/etc/config.xml -> in pdf/totals node add this:

        <codcharges translate="title">
            <title>COD Charges</title>
            <model>sales/order_pdf_total_codcharges</model>
            <font_size>7</font_size>
            <display_zero>0</display_zero>
            <sort_order>300</sort_order>
        </codcharges>

then create new file app/code/core/Mage/Sales/Model/Order/Pdf/Total/Codcharges.php with this content:

<?php
class Mage_Sales_Model_Order_Pdf_Total_Codcharges extends Mage_Sales_Model_Order_Pdf_Total_Default
{
    public function getTotalsForDisplay()
    {
        $price = 15; //or write a code to get it from where you store it for each order
        $amount = $this->getOrder()->formatPriceTxt($price);
        $label = Mage::helper('sales')->__($this->getTitle());
        $fontSize = $this->getFontSize() ? $this->getFontSize() : 7;
        $total = array(
            'amount'    => $amount,
            'label'     => $label,
            'font_size' => $fontSize
        );
        return array($total);
    }
}

For hints you can see app/code/core/Mage/Sales/Model/Order/Pdf/Total/Default.php.

---

To add it to the Grand Total of the Invoice please try with this:

in config.xml in sales/order_invoice/totals node add:

            <codcharges>
                <class>sales/order_invoice_total_codcharges</class>
                <after>subtotal,discount</after>
                <before>grand_total,tax</before>
            </codcharges>

Create new file app/code/core/Mage/Sales/Model/Order/Invoice/Total/Codcharges.php:

<?php
class Mage_Sales_Model_Order_Invoice_Total_Codcharges extends Mage_Sales_Model_Order_Invoice_Total_Abstract
{
    public function collect(Mage_Sales_Model_Order_Invoice $invoice)
    {
        $amount = 15; //or write a code to get it from where you store it for each order
        $invoice->setGrandTotal($invoice->getGrandTotal() + $amount);
        $invoice->setBaseGrandTotal($invoice->getBaseGrandTotal() + $amount);

        return $this;
    }
}