处理抛出的所有异常，把它们放到flashMessage与ZF2 [英] Handle all exceptions thrown, put them into flashMessage with ZF2

问题描述

我要适当地捕捉，我所有的异常，我ZF2服务抛出并将消息返回到flashMessage给用户。

I need to catch properly, all my exceptions thrown in my ZF2 services and return the message into a flashMessage to the user.

这是我试图在我的控制器动作：

This is what i tried in my Controller action:

try {
    $newConfigID = $this->configService->updateConfig($form->getData());
} catch (\Exception $e) {
    $this->flashMessenger()->setNamespace('danger')->addMessage($e->getMessage());
    return $this->redirect()->toRoute('config/update', array('idConfig' => $idConfig));
}

这工作就像一个魅力，但我不知道它的好，为此在控制器，如果它是更好的/干净的方式来实现这一目标。也许一个事件可以处理这一点，并创建一个 $ E-＆GT即显信息;的getMessage（）进入它

This is working like a charm, but i'm not sure if it's good to do this in Controller, if it's the better/clean way to achieve this. Maybe an event can handle this and create a flash message with the $e->getMessage() into it.

这是认为是不好的架构？如果是的话，我该怎么办这正常吗？

Is this considered bad architecture ? If yes, how can i do this properly ?

推荐答案

您可以赶上在 Module.php 应用程序的所有异常。当创建一个事件的 onBootstrap 方法，可以附加将处理抛出execption的功能。

You could catch all your application's exceptions in your Module.php. When an event is created in your onBootstrap method, you can attach a function which will handle the thrown execption.

所以你有这样的事情：

//file : Module.php

public function onBootstrap(MvcEvent $event)
{
    $em= $event->getApplication()->getEventManager();
    $em->attach(\Zend\Mvc\MvcEvent::EVENT_DISPATCH_ERROR, [$this, 'handleException']);
    $em->attach(\Zend\Mvc\MvcEvent::EVENT_RENDER_ERROR, [$this, 'handleException']);
}

public function handleException(MvcEvent $event)
{
    $e= $event->getParam('exception');
    $flashMessenger = new FlashMessenger();
    $flashMessenger->setNamespace('error');
    $flashMessenger->addMessage($e->getMessage());

    $event->getViewModel()->setVariable('flashMessages', $flashMessenger->getMessages());

}

在你的意见（主要是在 layout.phtml ）

In your views (mostly in layout.phtml) :

<?php if(isset($flashMessages)) : ?>
<ul class="errors">
    <?php foreach ($flashMessages as $flashMessage) : ?>
    <li><?php echo $flashMessage; ?></li>
    <?php endforeach; ?> 
</ul>
<?php endif; ?>

可能是你还可以看到这个野趣帖子

希望这可以帮助。

这篇关于处理抛出的所有异常，把它们放到flashMessage与ZF2的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！