Old-style Request->uri() for Kohana v3.2

request.php

<?php defined('SYSPATH') or die('No direct script access.');

class Request extends Kohana_Request {

    public function uri(array $params = null) 
    {
        if ($params === NULL)
        {
            return parent::uri();
        }

        $params += $this->_params + array(
            'directory'   => $this->_directory,
            'controller'  => $this->_controller,
            'action'      => $this->_action,
        );

        return $this->_route->uri($params);
    }
}