Multi Level Subfolder Controller in CodeIgniter

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Well, this is my first post so be gentle to me :).

Recently i’m working on a web based application project using CodeIgniter framework. Problem arises when my boss wants this web application to have more than two level subfolder in controller folder (for example: /controller/company_a/admin/, /controller/company_a/reports/) for organizational purpose.

As the default CodeIgniter version 1.7.2 set up, controllers can’t have multi level subfolder, so I need to find a way to provide the request.

After a little bit of Googling and searching on CodeIgniter forums, I found this thread http://codeigniter.com/forums/viewthread/85554/

There’s a solution for this problem on that thread but i don’t like the idea hacking the CI core so I modified it. So here’s the solution:

1. Copy this code into your CI application library folder (the default is /system/application/libraries), and name it as MY_Router.php:

   <?php
   
   /*
    * Custom router function v 0.1
    *
    * Add functionality : read into more than one sub-folder
    *
    */
   
   Class MY_Router extends CI_Router
   {
   	Function MY_Router()
   	{
   		parent::CI_Router();
   	}
   
   	function _validate_request($segments)
   	{
   		if (file_exists(APPPATH.'controllers/'.$segments[0].EXT))
   		{
   			return $segments;
   		}
   
   		if (is_dir(APPPATH.'controllers/'.$segments[0]))
   		{
   			$this->set_directory($segments[0]);
   			$segments = array_slice($segments, 1);
   
   			/* ----------- ADDED CODE ------------ */
   
   			while(count($segments) > 0 && is_dir(APPPATH.'controllers/'.$this->directory.$segments[0]))
   			{
   				// Set the directory and remove it from the segment array
       		$this->set_directory($this->directory . $segments[0]);
       		$segments = array_slice($segments, 1);
   			}
   
   			/* ----------- END ------------ */
   
   			if (count($segments) > 0)
   			{
   				if ( ! file_exists(APPPATH.'controllers/'.$this->fetch_directory().$segments[0].EXT))
   				{
   					show_404($this->fetch_directory().$segments[0]);
   				}
   			}
   			else
   			{
   				$this->set_class($this->default_controller);
   				$this->set_method('index');
   
   				if ( ! file_exists(APPPATH.'controllers/'.$this->fetch_directory().$this->default_controller.EXT))
   				{
   					$this->directory = '';
   					return array();
   				}
   
   			}
   
   			return $segments;
   		}
   
   		show_404($segments[0]);
   	}
   }
   
   ?>
   

2. And we’re done  🙂 . Simple isn’t it?

Feel free to test it and give your opinion. Any suggestions will be very much appreciated. Thanks!