where should I position my extended controllers?

[eluser]bill19[/eluser]
Hello ,

I am planning to use extended controllers for the first time.

right now I have:

Code:

class  MY_Controller  extends CI_Controller  {

    
        
}
    
        
class Admin_Controller extends MY_Controller {

    
}

class Common_Auth_Controller extends MY_Controller {

    
    
}

All in 1 file called MY_Controller.php in the application/libraries folder. Is this the best practice?

Thanks,

Bill