Magento Developper’s Guide (Lesson 9) – Rewrite / modify a Magento Model

This tutorial is the 9th of many , if it’s not already done, I suggest you read to the tutorials starting with the summary of this series.

Here is a small article until the next which is a little longer to write, It subjects will be « the Events and Observers in Magento ».

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why and when editing an existing template

Today we will extend a Model, this may be useful sometimes so you need to know how to do it. This can be useful for example, if you want to change the method getName() of a customer.

How do you rewrite a model

Let’s start from the plugin Test you have made in the previous tutorials and extend it model.

<?php

class Easylife_Test_Model_Customer  extends Mage_Customer_Model_Customer

{

  public function getName()

  {

     $name = '';

        if ($this->getPrefix()) {

            $name .= $this->getPrefix() . ' ';

        }

        $name .= $this->getFirstname();

        if ($this->getMiddlename()) {

            $name .= ' ' . $this->getMiddlename();

        }

        $name .=  ' ' . $this->getLastname();

        if ($this->getSuffix()) {

            $name .= ' ' . $this->getSuffix();

        }

        return $name.'88888';

  }

}

Then the same principle, edit config.xml and add :

<models>

  <customer>

    <rewrite>

      <product> Easylife_Test_Model_Customer</product>

    </rewrite>

  </customer>

</models>

Now, if you use getName() method on an Customer object, you will have the string « '88888″ after the name.
This is an example to show you that we can make modification of the model very easily, this example is useless but it is easy to understand


Conclusion:

You now know how to rewrite a model ;)

As usual, feel free to leave your messages and put a links to these tutorials on your websites. It’s always nice for me.
 

Find the summery of this tutorial