PHP SS_HTTPResponse::isFinished方法代码示例

	/**
	 * Executes this controller, and return an {@link SS_HTTPResponse} object with the result.
	 * 
	 * This method first does a few set-up activities:
	 *  - Push this controller ont to the controller stack - 
	 *    see {@link Controller::curr()} for information about this.
	 *  - Call {@link init()}
	 *  - Defer to {@link RequestHandler->handleRequest()} to determine which action
	 *    should be executed
	 * 
	 * Note: $requestParams['executeForm'] support was removed, 
	 * make the following change in your URLs: 
	 * "/?executeForm=FooBar" -> "/FooBar" 
	 * Also make sure "FooBar" is in the $allowed_actions of your controller class.
	 * 
	 * Note: You should rarely need to overload run() - 
	 * this kind of change is only really appropriate for things like nested
	 * controllers - {@link ModelAsController} and {@link RootURLController} 
	 * are two examples here.  If you want to make more
	 * orthodox functionality, it's better to overload {@link init()} or {@link index()}.
	 * 
	 * Important: If you are going to overload handleRequest, 
	 * make sure that you start the method with $this->pushCurrent()
	 * and end the method with $this->popCurrent().  
	 * Failure to do this will create weird session errors.
	 * 
	 * @param $request The {@link SS_HTTPRequest} object that is responsible 
	 *  for distributing request parsing.
	 * @return SS_HTTPResponse The response that this controller produces, 
	 *  including HTTP headers such as redirection info
	 */
	function handleRequest(SS_HTTPRequest $request, DataModel $model) {
		if(!$request) user_error("Controller::handleRequest() not passed a request!", E_USER_ERROR);
		
		$this->pushCurrent();
		$this->urlParams = $request->allParams();
		$this->request = $request;
		$this->response = new SS_HTTPResponse();
		$this->setModel($model);
		
		$this->extend('onBeforeInit');

		// Init
		$this->baseInitCalled = false;	
		$this->init();
		if(!$this->baseInitCalled) user_error("init() method on class '$this->class' doesn't call Controller::init().  Make sure that you have parent::init() included.", E_USER_WARNING);

		$this->extend('onAfterInit');
		
		// If we had a redirection or something, halt processing.
		if($this->response->isFinished()) {
			$this->popCurrent();
			return $this->response;
		}

		$body = parent::handleRequest($request, $model);
		if($body instanceof SS_HTTPResponse) {
			if(isset($_REQUEST['debug_request'])) Debug::message("Request handler returned SS_HTTPResponse object to $this->class controller; returning it without modification.");
			$this->response = $body;
			
		} else {
			if(is_object($body)) {
				if(isset($_REQUEST['debug_request'])) Debug::message("Request handler $body->class object to $this->class controller;, rendering with template returned by $body->class::getViewer()");
			   $body = $body->getViewer($request->latestParam('Action'))->process($body);
			}
			
			$this->response->setBody($body);
		}


		ContentNegotiator::process($this->response);
		HTTP::add_cache_headers($this->response);

		$this->popCurrent();
		return $this->response;
	}

 function isFinished()
 {
     return parent::isFinished() || $this->isFinished;
 }