Symfony2:在页面加载事件监听器中获取路由

问题描述：

如何在页面加载甚至侦听器中获取路由?

How can I get the route in a page load even listener?

在services.yml中有以下代码:

I have the following code in services.yml:

    page_load_listener:
    class: Acme\MainBundle\EventListener\PageLoadListener
    arguments: [@security.context, @session]
    tags:
        - { name: kernel.event_listener, event: kernel.controller, method: onKernelController, priority: 64 }

在PageLoadListener类中，我有相应的方法:

In the PageLoadListener class I have the corresponding method:

    public function onKernelController(FilterControllerEvent $event)
    {

        // Some code I need to execute that needs the route arguments

    }

问题似乎是路由和参数不可用.我想念什么?

The problem seems to be that the route and arguments are not available. What am I missing?

我需要通过哪个事件来选择路线及其参数?

谢谢

答

所有内核事件都扩展

All kernel events extend KernelEvent, which means you can simply acess the Request object via $event->getRequest().

public function onKernelController(FilterControllerEvent $event)
{
    $request = $event->getRequest();

    // Matched route
    $_route  = $request->attributes->get('_route');

    // Matched controller
    $_controller = $request->attributes->get('_controller');

    // All route parameters including the `_controller`
    $params      = $request->attributes->get('_route_params');
}

如果您想获得普通的路线属性，只需过滤掉所有以"_"开头的元素.

If you'd like to get plain route attributes, simply filter out all the elements prefixed with "_".

选择适当的事件进行监听取决于您的特定用例.

Choosing the proper event to listen to depends on your specific use case.

Symfony2:在页面加载事件监听器中获取路由

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