Codeigniter Multi-level Inheritance

Question

I am having problem in using multilevel inheritance as follows.

I have a top level controller that extends CI_Controller class

class Application extends CI_Controller
{
}

A controller named 'Site' and 'Admin' extends the Application controller as

class Site extends Application
{
}

class Admin extends Application
{
}

And finally class 'User' and 'Guest' extends 'Site' controller

class User extends Site
{
}

Class Guest extends Site
{
}

The problem is, in User and Guest controller I am not able to load core libraries such as pagination, form_validation etc. using

$this->load->library('pagination);

But it works when I load the library in Site controller or Application contoller ie. controller that extends the core CI_Controller and it's child controller. When I try to load in grand child it doesn't work.

Can somebody clarify why this is happening? Thanks...

Dan Smith · Accepted Answer · 2012-07-11 11:36:22Z

2

I've not seen a multi-level constructor class set up before, but it should work.

Are you calling parent::__construct() in the constructor of each class?

answered Jul 11, 2012 at 11:36

Dan Smith

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1 Comment

Kalpesh Patel Over a year ago

Yes, I am calling that. Only problem is that I am not able to load library from grand child.

sepehr · Accepted Answer · 2012-09-23 01:11:58Z

1

Checkout CodeIgniter Base Controllers, explanation included.

answered Sep 23, 2012 at 1:11

sepehr

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Comments

ashraf mohammed · Accepted Answer · 2014-03-17 08:23:41Z

0

//-Create MY_Controller.php on application/core/MY_Controller.php
//contents of MY_Controller.php
class Application extends CI_Controller{
    function __construct(){
      // Call the CI_Controller constructor
      parent::__construct();        
    }
}
//that is all now you can inherit class (Application) anywhere in your project

answered Mar 17, 2014 at 8:23

ashraf mohammed

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