Overriding Warden Classes

If you want to override Warden with your own model classes to add your own custom methods and properties, all you have to do is create your model in the APPPATH/classes/model directory and extend the model class you want to override. Don't forget to add this class to your APPPATH bootstrap.php file.

Eg. Extending Model_Profile

Create a file: APPPATH/classes/model/profile.php

class Model_Profile extends \Warden\Model_Profile
{
    const REGEX_NAME = '\^[^;]+$';

    /**
     * Object properties
     *
     * @var array
     */
    protected static $_properties = array(
        // Must include original fields
        'id',
        'user_id',
        // My extra custom fields
        'first_name' => array(
            'validation' => array(
                'null' => true,
                'match_pattern' => array(self::REGEX_NAME),
            ),
        ),
        'last_name' => array(
            'validation' => array(
                'null' => true,
                'match_pattern' => array(self::REGEX_NAME),
            ),
        ),
        'gender'
    );
}

In APPPATH/bootstrap.php:

Autoloader::add_classes(array(
    // Add classes you want to override here
    'Model_Profile' => APPPATH.'classes/model/profile.php',
));

That's It!

Now, Warden will automatically use your new Model_Profile when creating/modifying users.

For more detail, view: http://fuelphp.com/forums/topics/view/6451/