法尔康 : get instance of controller in beforeExecuteRoute

Question

如何在 phalcon 框架的 beforeExecuteRoute 方法中获取令人兴奋的 Controller 实例？

Answer 1

令人兴奋的 Controller ？这完全取决于是什么让他们兴奋……

但是，srsly，您只能从调度程序中获取事件 Controller 的实例，可以像这样访问它:

$controller = $di->getShared('dispatcher')->getActiveController();

如果您将事件处理程序与事件管理器一起使用，则如下所示:

$eventManager->attach("dispatch:beforeExecuteRoute", function (Event $event, Dispatcher $dispatcher) {
    $controller = $dispatcher->getActiveController();
});

如果您实际上将现有 Controller 表示为复数，那么您需要为 Controller 实例化添加某种跟踪。您不能通过 Controller 类中的 __construct 执行此操作，因为出于某种原因某些天才将 __construct 标记为 final。另一种选择是在您的 beforeExecuteRoute 和 beforeNotFoundAction 事件中添加该跟踪，挖掘 the code in the repository详情:

// Exciting controllers get stored whenever the dispatcher reports if the action was not found
// or when it's ready to dispatch. Note, if a controller gets created outside the dispatcher
// it will not be tracked, though in real life that should never happen.

$controller = [];

$eventManager->attach("dispatch:beforeNotFoundAction", function (Event $event, Dispatcher $dispatcher) {
    $controllers[] = $dispatcher->getActiveController();
});

$eventManager->attach("dispatch:beforeExecuteRoute", function (Event $event, Dispatcher $dispatcher) {
    $controllers[] = $dispatcher->getActiveController();
});