Extending The Controller Class in CodeIgniter

Question

I have class MY_Controller extends CI_Controller and common logic for big profile section, so I'va tried to create class Profile extends MY_Controller with common logic for profile section and all class related to this section should extends this Profile class as I understand right, but when I tried to create class Index extends Profile I recieve an error:

Fatal error: Class 'Profile' not found

CodeIgniter tries to find this class in index.php which I am running.

Where is my mistake? Or maybe there is anoter better way to mark out common logic?

Answer 1

I take it you have put your MY_Controller in /application/core, and set the prefix in the config. I would be careful about using index as a class name though. As a function/method in Codeigniter it has a dedicated behaviour.

If you then want to extend that controller you need to put the classes in the same file.

E.g. In /application core

/* start of php file */
class MY_Controller extends CI_Controller {
    public function __construct() {
       parent::__construct();
    }
...
}

class another_controller extends MY_Controller {
    public function __construct() {
       parent::__construct();
    }
...
}
/* end of php file */

In /application/controllers

class foo extends MY_Controller {
    public function __construct() {
       parent::__construct();
    }
...
}

or

class bar extends another_controller {
    public function __construct() {
       parent::__construct();
    }
...
}