Knowledge Base

How to Override controller in magento / Override controller’s action in magento

Requirement: Sometimes you may run into situation where you want to override the core functionality of Magento core controllers. So in this case, the best practice is override the controller then override actions or add new actions for custom requirement.

For example you want to override OnepageController.php file and override indexAction.
In this example my custom module namespace is “Onsis” and I am going to override indexAction Mage_Checkout_OnepageController

Base File Path :

app/code/core/Mage/Checkout/controllers/OnepageController.php

To Do the same we have to follow bellow steps.

Step1: We need to create a custom module

File Path : app/etc/modules/
File Name: Onsis_Checkout.xml
File Content:
true
local

Step2: Now we have to create bellow files in our custom module

File Path: app/code/local/Onsis/Checkout/etc/config.xml

Below is content for config.xml file

0.0.1

Onsis_Checkout
Below is content for OnepageController.php
File Path : app/code/local/Onsis/Checkout/controllers/OnepageController.php
/* Description: Override OnepageController.php file
* Overwride indexAction
* Author: Pramod Gupta
*/
require_once ‘Mage/Checkout/controllers/OnepageController.php’;
class Onsis_Checkout_OnepageController extends
Mage_Checkout_OnepageController {
public function indexAction()
{
echo “Great! You are in onsis checkout controller section”;
exit;
}
}