Controllers in Unlimited Nested Folders

[eluser]xwero[/eluser]
Try this overloaded _valid_request method

Code:

class MY_Router extends CI_Router
{
    function _validate_request($segments)
    {
        // Does the requested controller exist in the root folder?
        if (file_exists(APPPATH.'controllers/'.$segments[0].EXT))
        {
            return $segments;
        }

        // Is the controller in a sub-folder?
        $dir = '';
        $slice_offset = 0;
        // loop trough the segments until the segment is no directory
        foreach($segments as $segment)
        {
            if(strlen($dir) > 0){ $dir .= '/'; }
            if(is_dir(APPPATH.'controllers/'.$dir.$segment))
            {
                $dir .= $segment;
                $slice_offset++;
            }
            else
            {
                break;
            }
        }
        if($dir != '')
        {
            // Set the directory and remove it from the segment array
            $this->directory($dir);
            $segments = array_slice($segments, $slice_offset);
            
            if (count($segments) > 0)
            {
                // Does the requested controller exist in the sub-folder?
                if ( ! file_exists(APPPATH.'controllers/'.$this->fetch_directory().$segments[0].EXT))
                {
                    show_404($this->fetch_directory().$segments[0]);    
                }
            }
            else
            {
                $this->set_class($this->default_controller);
                $this->set_method('index');
            
                // Does the default controller exist in the sub-folder?
                if ( ! file_exists(APPPATH.'controllers/'.$this->fetch_directory().$this->default_controller.EXT))
                {
                    $this->directory = '';
                    return array();
                }
            
            }
                
            return $segments;
        }
    
        // Can't find the requested controller...
        show_404($segments[0]);    
    }
}