Hooks in Codeigniter

Question

How can I call a hook for only a few controllers instead of all controllers in CodeIgniter?

E.g.: I want to run the hook for only the admin section. How can I achieve this?

You can try to get the controller name in the hook, then only run the code when it's admin. ellislab.com/forums/viewthread/62981/#778802 — gen_Eric
– gen_Eric, Commented May 22, 2014 at 16:16

Courtney7 · Accepted Answer · 2014-05-22 18:15:53Z

5

In the hook which you wish to run selectively, you can access the ci superobject using $this->ci =& get_instance();. This acts as a pointer which can be used to access the CodeIgniter router to determine the class using $class = $this->ci->router->fetch_class();. You can then check if $class matches a certain value. This would give you:

<?php class Post_controller_constructor {
    var $ci;

    function __construct() {

    }

    function index()
    {
        $this->ci =& get_instance();
        $class = $this->ci->router->fetch_class();
        if($class === 'admin') {
            // Hook procedures
        }
    }
}

/* End of file post_controller_constructor.php */
/* Location: ./application/hooks/post_controller_constructor.php */

answered May 22, 2014 at 18:15

Courtney7

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Comments

mirza · Accepted Answer · 2015-05-12 10:18:21Z

0

You can simply do it by checking url of your application in your hook:

$hook = false;
if(strpos($_SERVER['REQUEST_URI'],"admin/"))
$hook = true;
if($hook) {
// do some hook stuff
}

answered May 12, 2015 at 10:18

mirza

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Comments

Brock · Accepted Answer · 2020-09-01 01:26:08Z

First you will Enable Hooks in config/config.php File

$config['enable_hooks'] = TRUE;

Than Open config/hooks.php File

Than Define Hooks

$hook['post_controller_constructor']  = array(  
    'class'     => 'Post_controller_constructor',      // Class Name
   'function'  => 'check_status',     // Function Name
   'filename'  => 'Post_controller_constructor',   // File Name in Hook Folder
   'filepath'  => 'hooks'       // Controller Path
);

Than create hooks file in Hooks Folder Like hooks/hooks.php open File

Here, In the hook which you wish to run selectively, you can access the ci superobject using $this->ci =& get_instance();. This acts as a pointer which can be used to access the CodeIgniter router to determine the class using $class = $this->ci->router->fetch_class();. You can then check if $class matches a certain value. This would give you:

<?php class Post_controller_constructor {
    var $ci;

    function __construct() {

    }

    function check_status()
    {
        $this->ci =& get_instance();
        $class = $this->ci->router->fetch_class();
        if($class === 'admin') {
            // Hook procedures
        }
    }
}

/* End of file post_controller_constructor.php */
/* Location: ./application/hooks/post_controller_constructor.php */

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