Having a model extend another model

[eluser]InsiteFX[/eluser]
MY_Model

Code:

// saveas - ./application/core/MY_Model.php
class Base_model extends CI_Model {

    public function __construct()
    {
        parent::__construct();
    }

    // your code for model 1
}

// saveas - ./application/models/name_model.php
class Model_2 extends Base_model {

    public function __construct()
    {
        parent::__construct();
    }

    // your code for model 2
}

Something like that...