Zend Framework: A simple Zend_Rest_Server example

−
<emprestserver generator="zend" version="1.0">
−
<getbyid>
    <emp_id>123456</emp_id>
    <emp_lname>Del Rosario</emp_lname>
    <emp_fname>Wenbert</emp_fname>
    <emp_mname />
    <emp_status>A</emp_status>
    <emp_type>R</emp_type>
    <emp_gender>M</emp_gender>
    <status>success</status>
</getbyid>
</emprestserver>

< ?php
/**
 * /application/controllers/ApiController.php
 *
 * ApiController
 * 
 * This will contain all the API stuff you want for your application
 *
 */
class ApiController extends Zend_Controller_Action
{
    /**
     * @var Zend_Rest_Server
     */
    protected $_server;
 
    public function init()
    {
        $this->_helper->viewRenderer->setNoRender(); //disable Layouts for this controller
        $this->_helper->layout()->disableLayout();
    }
 
    public function indexAction()
    {
        $this->_redirect('/'); //for anything other than a call to service/params redirect to indexControlller :P
    }
 
    public function empAction()
    {
        $params = $this->_getAllParams();
        unset($params['controller']);
        unset($params['action']);
        unset($params['module']);
        $param_keys = array_keys($params);
 
        $filter_params = $params; //need to filter this
 
        $param_keys_uc = array();
        foreach($param_keys AS $key) {
            $param_keys_uc[] = ucfirst($key);
        }
        $methodname = "getBy".implode('',$param_keys_uc);
        $request = array('method' => $methodname);
 
        foreach($param_keys AS $key) {
 
            $request[$key] = $filter_params[$key]; //need to filter key
 
            //need better checking
            if(!$request[$key]) {
                throw new Exception($request[$key].' contained invalid data.');
            }
        }
 
        require_once 'EmprestServer.php';
        $server = new Zend_Rest_Server();
        $server->setClass('EmprestServer');
        $server->handle($request);
 
    }
}

< ?php
/**
 * /application/controllers/EmprestServer.php
 *
 * Employee Rest Server
 *
 * I decided to put this beside the other controllers because I thought
 * this would "act" like a controller.
 *
 * I plan to add more methods after this and I want it to be a part of
 * my entire application.
 *
 */
 
//I am using the Employee Model for easier access to the database
require_once APPLICATION_PATH.'/models/Employee.php'; 
 
class EmprestServer
{
    /**
     * /api/emp/id/1124921
     *
     * @param unknown_type $emp_id
     * @return unknown
     */
    public function getById($id)
    {
        return $this->getData(array('id'=>$id));
    }
 
    public function getByShortname($shortname)
    {
        return $this->getData(array('shortname'=>$shortname))->toArray();
    }
 
    private function getData(array $params)
    {
        $emp = new Employee();
        $data = array();
 
        foreach($params AS $key=>$value) {
            if($key=='id') {
                //getEmployeeById($value) is a method in my Employee Model
                if(!$data = $emp->getEmployeeById($value)) throw new Exception('Employee ID not found.');
            }
 
            $data = $data->toArray();
        }
        return $data;
    }
}