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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_View
* @subpackage Helper
* @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
* @version $Id: Action.php 20096 2010-01-06 02:05:09Z bkarwin $
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
/** Zend_View_Helper_Abstract.php */
require_once 'Zend/View/Helper/Abstract.php';
/**
* Helper for rendering output of a controller action
*
* @package Zend_View
* @subpackage Helper
* @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_View_Helper_Action extends Zend_View_Helper_Abstract
{
/**
* @var string
*/
public $defaultModule;
/**
* @var Zend_Controller_Dispatcher_Interface
*/
public $dispatcher;
/**
* @var Zend_Controller_Request_Abstract
*/
public $request;
/**
* @var Zend_Controller_Response_Abstract
*/
public $response;
/**
* Constructor
*
* Grab local copies of various MVC objects
*
* @return void
*/
public function __construct()
{
$front = Zend_Controller_Front::getInstance();
$modules = $front->getControllerDirectory();
if (empty($modules)) {
require_once 'Zend/View/Exception.php';
$e = new Zend_View_Exception('Action helper depends on valid front controller instance');
$e->setView($this->view);
throw $e;
}
$request = $front->getRequest();
$response = $front->getResponse();
if (empty($request) || empty($response)) {
require_once 'Zend/View/Exception.php';
$e = new Zend_View_Exception('Action view helper requires both a registered request and response object in the front controller instance');
$e->setView($this->view);
throw $e;
}
$this->request = clone $request;
$this->response = clone $response;
$this->dispatcher = clone $front->getDispatcher();
$this->defaultModule = $front->getDefaultModule();
}
/**
* Reset object states
*
* @return void
*/
public function resetObjects()
{
$params = $this->request->getUserParams();
foreach (array_keys($params) as $key) {
$this->request->setParam($key, null);
}
$this->response->clearBody();
$this->response->clearHeaders()
->clearRawHeaders();
}
/**
* Retrieve rendered contents of a controller action
*
* If the action results in a forward or redirect, returns empty string.
*
* @param string $action
* @param string $controller
* @param string $module Defaults to default module
* @param array $params
* @return string
*/
public function action($action, $controller, $module = null, array $params = array())
{
$this->resetObjects();
if (null === $module) {
$module = $this->defaultModule;
}
// clone the view object to prevent over-writing of view variables
$viewRendererObj = Zend_Controller_Action_HelperBroker::getStaticHelper('viewRenderer');
Zend_Controller_Action_HelperBroker::addHelper(clone $viewRendererObj);
$this->request->setParams($params)
->setModuleName($module)
->setControllerName($controller)
->setActionName($action)
->setDispatched(true);
$this->dispatcher->dispatch($this->request, $this->response);
// reset the viewRenderer object to it's original state
Zend_Controller_Action_HelperBroker::addHelper($viewRendererObj);
if (!$this->request->isDispatched()
|| $this->response->isRedirect())
{
// forwards and redirects render nothing
return '';
}
$return = $this->response->getBody();
$this->resetObjects();
return $return;
}
/**
* Clone the current View
*
* @return Zend_View_Interface
*/
public function cloneView()
{
$view = clone $this->view;
$view->clearVars();
return $view;
}
}
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