how to override a Core Customer Model in a local module in magento 1.9.2

Question

I am try to override Function public function validate() in app/code/core/Mage/Customer/Model/Customer.php

To Restrict user registration by email domain i can do this by change directly in Function public function validate() in app/code/core/Mage/Customer/Model/Customer.php but I need to override it in codepool.

With Creating module in codepool :

/app/code/local/Codefire/Customer/etc/config.xml

<?xml version="1.0"?>
<config>
    <modules>
        <Codefire_Customer>
            <version>0.1</version>
        </Codefire_Customer>
    </modules>
    <global>
       <models>
          <customer>
              <rewrite>
                  <customer>Codefire_Customer_Model_Customer</customer>
              </rewrite>
          </customer>
       </models>
    </global>
</config>

/app/etc/modules/Codefire_Customer.xml

<?xml version="1.0"?>
<config>
    <modules>
        <Codefire_Customer>
            <active>true</active>
            <codepool>local</codepool>
        </Codefire_Customer>
    </modules>
</config>

/app/code/local/Codefire/Customer/Model/Customer.php

<?php
/**
 * Overrite Customer model
 */

class Codefire_Customer_Model_Customer extends Mage_Customer_Model_Customer{

    /**
     * Validate customer attribute values.
     *
     * @return bool
     */
    public function validate() {
     echo 'I am here'; die;
   }

I need call this function when do new registration.

Answer 1

/app/etc/modules/Codefire_Customer.xml

<?xml version="1.0"?>
<config>
    <modules>
        <Codefire_Customer>
            <active>true</active>
            <codePool>local</codePool> //codePool and not codepool
            <depends><Mage_Customer/></depends> //you have forgot the depends
        </Codefire_Customer>
    </modules>
</config>

With this config, Magento load first Mage_Customer then Codefire_Customer

Answer 2

Replace your Customer Model class with below code:

<?php
class Codefire_Customer_Model_Customer extends Mage_Customer_Model_Customer{

    /**
     * Validate customer attribute values.
     *
     * @return bool
     */
    public function validate() {
     echo 'I am here'; die;
   }
}

Its seems you missed closing "}" of your Codefire_Customer_Model_Customer

This might be the root cause of your issue.

Answer 3

Can you please check if Mage_Customer_Model_Customer is already extended by another class?

If there is another class that is already extending the class that you are trying to overwrite then it may not work. If yes then instead of Mage_Customer_Model_Customer class you might need to extend another class and make changes in config file accordingly.

Other reason could be you are missing below code in your /app/etc/modules/Codefire_Customer.xml

        <depends>
            <Mage_Customer />
        </depends>

Answer 4

Do you need to do this in a custom module? If not you could duplicate app/code/core/Mage/Customer/Model/Customer.php into app/code/local/Mage/Customer/Model/Customer.php and alter the validate function there.