How-to: Adding support for multiple Controller sub-directories.

[eluser]Unknown[/eluser]
CodeIgniter by default only looks one sub-directory deep into the Controllers folder hierarchy. I, however, needed multiple directories to be searched. After spending a while trying to figure this out for CI 2.0.3, I've decided to post my solution below!

Simply put the following code under your application/core directory, saving it as 'MY_Router.php' and you're done!

Code:

<?php

/*
*
* Add functionality : read into more than one sub-folder
*
*/

class MY_Router extends CI_Router
{

function __construct()
{
  parent::__construct();
  log_message('debug', "MY_Router Class Initialized");
}

/**
  * Validates the supplied segments.  Attempts to determine the path to
  * the controller.
  *
  * @access private
  * @param array
  * @return array
  */
function _validate_request($segments)
{
  if (count($segments) == 0)
  {
   return $segments;
  }

  // Does the requested controller exist in the root folder?
  if (file_exists(APPPATH.'controllers/'.$this->directory.$segments[0].'.php'))
  {
   log_message('debug', $this->directory.$segments[0].' is a controller.');
   return $segments;
  }

  // Is the controller in a sub-folder?
  if (is_dir(APPPATH.'controllers/'.$this->directory.$segments[0]))
  {
   log_message('debug', $this->directory.$segments[0].' is a sub-folder.');
   // Set the directory and remove it from the segment array
   $this->set_directory($segments[0],$this->directory);
   $segments = array_slice($segments, 1);

   return $this->_validate_request($segments);
  }


  // If we've gotten this far it means that the URI does not correlate to a valid
  // controller class.  We will now see if there is an override
  if ( ! empty($this->routes['404_override']))
  {
   $x = explode('/', $this->routes['404_override']);

   $this->set_class($x[0]);
   $this->set_method(isset($x[1]) ? $x[1] : 'index');

   return $x;
  }


  // Nothing else to do at this point but show a 404
  show_404($segments[0]);
}

/**
  *  Set the directory name
  *
  * @access public
  * @param string
  * @return void
  */
function set_directory($dir, $base='')
{
  $this->directory = $base.str_replace(array('/', '.'), '', $dir).'/';
}
}

[eluser]seegithub[/eluser]
Very very very nice my bro, a little touch and then..., work like a charm^^

[eluser]Unknown[/eluser]
absolute gold cheers for that!
it would be nice to have that as part of the normal CI modus operandi. I spent quite some time trying to work out why I couldn't access my controllers until it dawned on me that there might be a directory limitation in place...

[eluser]stv[/eluser]
for CodeIgniter_2.1.2 it is not working in routes