CODEWITHSUNDEEP
phpcodeigniterinheritance
Sebastian Corneliu Vîrlan
Sebastian Corneliu Vîrlan

Reputation: 1700

Get the constructor of class that inherits

I have this class in /libraries.

class CI_Decorator extends CI_Controller {


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

}

The error I get is very weird:

Message: Undefined property: CI_Decorator::$load
Filename: libraries/Form_validation.php
Backtrace:
File: /application/libraries/CI_Decorator.php

And is because I try to get CI_Controller constructor with

parent::__construct();

UPDATE:

I am trying to implement this Decorator but I think was developed for an earlier version of CI.

Upvotes: 0

Views: 38

Answers (1)

DFriend
DFriend

Reputation: 8964

Change the file name to Decorator.php and in the class file use this.

class Decorator{
  //there is no parent so you cannot call a parent constructor
  //public function __construct() {
      //parent::__construct();
  //}

}

Only preface a file (or class) name with "CI_" when you wish to replace one of CodeIgniter's core classes. If a core class with that name does not exist the load will fail.

If you want to extend a native class then you will preface the class and file name with MY_ or with the prefix you set in config.php 

$config['subclass_prefix'] = 'YOURPREFIX_';

Extending CI_Controller more than once is frustrating too and you will run into a different but related problem. You will find many answers to that question here on Stack Overflow. In the search box above use the search term "[codeigniter] extending CI_controller" (without the quote marks)

Upvotes: 1

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