Changes is working in core path but not in local path

Question

I changed some coupon code error message in core file.its working fine. but if i copy the file to local [below] path , its not working for me.

app/code/core/Mage/Checkout/controllers/CartController.php - working


app/code/local/Mage/Checkout/controllers/CartController.php - not working

what else changes i need to do to fix this issue

Answer 1

Sorry, but copying files to app/code/local in order to override original core fiels only works for blocks, models and helpers. It does not work for controllers.

To override a controller you will have to create a module with the following in the config.xml:

<frontend>
    <routers>           
            <checkout>
                <args>
                    <modules>
                        <Vendor_Module before="Mage_Checkout">Vendor_Module</Vendor_Module>
                    </modules>
                </args>
            </checkout> 
        </routers>
</frontend>

Then you'll have to create the following controllers/CartController.php file:

<?php

require_once 'Mage/Checkout/controllers/CartController.php'

class Vendor_Module_CartController extends Mage_Checkout_CartController
{
    // Add your custom code here
}