RESTful by Kohana v3.0.x + Sprig

kohana-3-rest-server-sample.php

<?php defined('SYSPATH') or die('No direct script access.');
/**
 * People API - Example Code
 *
 * @author icyleaf <icyleaf.cn@gmail.com>
 * @link http://icyleaf.com
 * @version 0.1 
 */
class Controller_API_People extends Controller_REST {

	/**
	 * Get user profile with GET request by id
	 * @param int $id
	 * @return void
	 */
	public function action_index($id = NULL)
	{
		if ( ! empty($id))
		{
			// Load user
			$user = Sprig::factory('user', array('username' => $id))
				->load();

			if ($user->loaded())
			{
				// render data
				$this->_render($user->as_array(), 200, TRUE);
			}
			else
			{
				$this->_render('No Found the user: ' . $id, 404);
			}
		}
		else
		{
			$this->_render('Empty userID');
		}
	}

	/**
	 * Create one new user with POST request
	 * @return void
	 */
	public function action_create()
	{
		if ($_SERVER['REQUEST_METHOD'] == 'GET')
		{
			// Load user
			$id = Arr::get($_POST, 'username');
			$user = Sprig::factory('user', array('username' => $id))
				->load();

			if ( ! $user->loaded())
			{
				// create it!
				$user = Sprig::factory('user')
					->values($_POST)
					->create();

				$this->_render('Saved', 201);
			}
			else
			{
				$this->_render('Exist user', 403);
			}
		}
		else
		{
			$this->_render('No POST Request', 404);
		}
	}

	/**
	 * Update exist user profile with PUT request by id
	 * @param int $id
	 * @return void
	 */
	public function action_update($id = NULL)
	{
		if ($_SERVER['REQUEST_METHOD'] == 'PUT')
		{
			if ( ! empty($id))
			{
				// Load user
				$user = Sprig::factory('user', array('username' => $id))
					->load();

				if ($user->loaded())
				{
					try
					{
						// Assign PUT data
						parse_str(file_get_contents("php://input"), $_PUT);
						$_PUT = (count($_PUT) == 0) ? $_POST : $_PUT;

						// Update user
						$user->values($_PUT)->update();
						$this->_render('Updated', 202);
					}
					catch (Exception $e)
					{
						$this->_render('Failed: ' . $e->getMessage(), 403);
					}
				}
				else
				{
					$this->_render('No Found the user: ' . $id, 404);
				}
			}
			else
			{
				$this->_render('Empty userID');
			}
		}
		else
		{
			$this->_render('No PUT Request', 404);
		}
	}

	/**
	 * Delete a exist user with DELETT request by id
	 * @param int $id
	 * @return void
	 */
	public function action_delete($id = NULL)
	{
		if ($_SERVER['REQUEST_METHOD'] == 'DELETE')
		{
			if ( ! empty($id))
			{
				// Load user
				$user = Sprig::factory('user', array('username' => $id))
					->load();

				if ($user->loaded())
				{
					// delete it!
					$user->delete();

					$this->_render('Deleted');
				}
				else
				{
					$this->_render('No Found the user: ' . $id, 404);
				}
			}
			else
			{
				$this->_render('Empty userID');
			}
		}
		else
		{
			$this->_render('No DELETE Request', 404);
		}
	}

	/**
	 * Render the response message with status and content-type
	 * @param sting $content
	 * @param int $status
	 * @param boolean $format
	 * @return void
	 */
	private function _render($content, $status = 200, $format = FALSE)
	{
		$header = array();
		if ($format)
		{
			$alt = Arr::get($_GET, 'alt', 'json');
			switch($alt)
			{
				case 'xml':
					// TODO: format $content into xml and assign itself
					$header = array(
						'Content-Type'	=> 'text/xml; charset=utf-8'
						);
					break;
				default:
				case 'json':
					$header = array(
						'Content-Type'	=> 'application/json; charset=utf-8'
						);
					$content = json_encode($content);
					break;
			}
		}
		
		$this->request->headers = $header;
		$this->request->status = $status;
		$this->request->response = $content;
	}
}

== Route ==
Route::set('api/people', 'api/people(/)')
->defaults(array(
'directory' => 'api',
'controller' => 'people',
'action' => 'index',
));

Route::set('api', 'api/(<controller>(/<action>(/<id>)))')
    ->defaults(array(
        'directory'  => 'api',
    ));

== Model ==

models is used Sprig modul, stored in classes/model/user.php