CI 3.0에서 하위폴더를 가진 기본 컨트롤러 설정

defined('BASEPATH') OR exit('No direct script access allowed');
class MY_Router extends CI_Router {
    protected function _set_default_controller() {
        if (empty($this----->default_controller)) {
           show_error('Unable to determine what should be displayed. A default route has not been specifieMY_Routerd in the routing file.');
        }

        // Is the method being specified?
        if (sscanf($this->default_controller, '%[^/]/%s', $class, $method) !== 2) {
            $method = 'index';
        }

        // This is what I added, checks if the class is a directory
        if( is_dir(APPPATH.'controllers/'.$class) ) {
            // Set the class as the directory
            $this->set_directory($class);
            // $method is the class
            $class = $method;
            // Re check for slash if method has been set

            if (sscanf($method, '%[^/]/%s', $class, $method) !== 2) {
                $method = 'index';
            }
        }


        if ( ! file_exists(APPPATH.'controllers/'.$this->directory.ucfirst($class).'.php')) {
            // This will trigger 404 later
            return;
        }

        $this->set_class($class);
        $this->set_method($method);

        // Assign routed segments, index starting from 1

        $this->uri->rsegments = array(
            1 => $class,
            2 => $method
        );

        log_message('debug', 'No URI present. Default controller set.');
    }
}