Codeigniter extending extended MY_Controller

Question

I have strictly followed the how-to article by Phil Sturgeon, to extend the base controller. But I get still some errors.

My 3 classes:

// applicatio         


        

Answer 1

You should place Public_controller in with MY_Controller inside MY_Controller.php

// application/libraries/MY_Controller.php
class MY_Controller extends Controller{
    public function __construct(){
        parent::__construct();
    }
}

class Public_Controller extends MY_Controller{
    public function __construct(){
        parent::__construct();

    }    
}

I use __construct everywhere and it works fine I recently wrote up an article on how to do this in relation to wrapping your auth logic into your extended controllers. It's about half way down when I start discussing constructing your controllers.

Answer 2

You need to require the Public Controller in your MY_Controller

// application/libraries/MY_Controller.php
class MY_Controller extends Controller{
    public function __construct(){
        parent::__construct();
    }
}

require(APPPATH.'libraries/Public_Controller.php');

You get the error because Public_Controller was never loaded. Doing this would allow you to extend from Public_Controller

I like what you are doing because I do that all the time.

You can do this also in your MY_Controller when you want to create an Admin_Controller

// application/libraries/MY_Controller.php
class MY_Controller extends Controller{
    public function __construct(){
        parent::__construct();
    }
}

require(APPPATH.'libraries/Public_Controller.php'); // contains some logic applicable only to `public` controllers
require(APPPATH.'libraries/Admin_Controller.php'); // contains some logic applicable only to `admin` controllers

Answer 3

Problem was solved here: http://devcrap.net/pl/2011/09/04/codeigniter-dziedziczenie-z-my_controller-extends-my_controller/. In polish but code is good :]

Answer 4

I had problem like this,After some search I found error was made myself,Because my controller class name was MY_Controller but file name was My_Controller[Case not matching]. Note:- In localhost I didnt have any error.

In extended controller I Use

class Home  extends MY_Controller{
   function __construct() {
   parent::__construct();
  }
}

even I got the error.

After changing my file name to MY_Controller it started to work well.

Answer 5

I have a custom controller class called MY_Controller it extends CI_Controller and it works fine. It is located at application/core and it has custom functions lo load views in my site.

I use an abstract class My_app_controller that extends MY_Controller for my_app specific behabior, I want every controller in my_app to extend this abstract class. (I use diferent apps in the site, so some apps will extend My_app_controller and other apps will extend My_other_apps_controllers)

But when I try to extend My_app_controller from any controller in my application, "Main_app_controller extends My_app_controller" generates a Class 'My_app_controller' not found exception.

I found two solutions:

1. use include_once in Main_app_controller.php file.
   include_once APPPATH.'controllers/path/to/My_app_controler.php';

2. break the "one class per file" rule of code igniter and define my My_app_controller just in the same file MY_Controller is (under application/core).

Manual says:

Use separate files for each class, unless the classes are closely related

Well... they are.

Anyway, I prefered to use the include_once solution as I think it is better to have one file per class and My_app_controller is located under application/controllers/my_app folder. (so application/controllers/other_apps will exist)