session - zf2 中的 Flash 信使

Question

如何在 Zend 框架 2 中使用 Flash Messenger？ session 文档还没有。有人知道吗？但是 session 库就在那里。

Answer 1

更新:

Zend Framework 新版本添加了 FlashMessenger View Helper，在路径 /library/Zend/View/Helper/FlashMessenger.php 中找到

FlashMessenger.php

旧答案:

我编写了一个自定义 View 助手，用于打印 flash 消息

在/module/Application/Module.php

public function getViewHelperConfig()
{
    return array(                    
        'factories' => array(                                               
            'flashMessage' => function($sm) {      

                 $flashmessenger = $sm->getServiceLocator()
                                      ->get('ControllerPluginManager')
                                      ->get('flashmessenger');                                   

                 $message    = new \My\View\Helper\FlashMessages( ) ;
                 $message->setFlashMessenger( $flashmessenger );

                 return $message ;
               } 
           ),
    );
}

在/library/My/View/Helper/FlashMessages.php 中创建自定义 View 助手

namespace My\View\Helper;
use Zend\View\Helper\AbstractHelper;

class FlashMessages extends AbstractHelper
{

        protected $flashMessenger;

        public function setFlashMessenger( $flashMessenger )
        {
                $this->flashMessenger = $flashMessenger ;
        }


        public function __invoke( )
        {

                 $namespaces = array( 
                     'error' ,'success', 
                     'info','warning' 
                 );

                 // messages as string
                 $messageString = '';

                 foreach ( $namespaces as $ns ) {

                        $this->flashMessenger->setNamespace( $ns );

                        $messages = array_merge(
                                 $this->flashMessenger->getMessages(),
                                 $this->flashMessenger->getCurrentMessages()
                        );


                        if ( ! $messages ) continue;

                        $messageString .= "<div class='$ns'>"
                                        . implode( '<br />', $messages )
                                    .'</div>';
                }

                return $messageString ;
        }
}

然后从 layout.phtml 或您的 view.phtml 简单调用

echo $this->flashMessage(); 

让我展示 Controller Action 的例子

public function testFlashAction()
{
          //set flash message
          $this->flashMessenger()->setNamespace('warning')
                 ->addMessage('Mail sending failed!');

          //set flash message
          $this->flashMessenger()->setNamespace('success')
                 ->addMessage('Data added successfully');

          // redirect to home page 
          return $this->redirect()->toUrl('/');
}

在主页中，它打印

<div class="success">Data added successfully</div>
<div class="warning">Mail sending failed!</div>

希望这会有所帮助!