Question

I need my ZF2 module to wait until all modules have been loaded that might overwrite my module's config. I then need to extract some values from the merged config and attach a listener to the shared event manager.

In my module I have this;

public function init(ModuleManager $moduleManager)
{
    // Listen for when all other modules have been loaded.
    $eventManager = $moduleManager->getEventManager();
    $eventManager->attach(ModuleEvent::EVENT_LOAD_MODULES_POST, array($this, 'onModulesLoadedPost'));

}

private function onModulesLoadedPost(ModuleEvent $event)
{
    $config = $event->getConfigListener()->getMergedConfig(false)['MyConfigKey'];
    $sharedEventManager = // HELP, How do i get the shared event manager here?

    // listen for new roles (if configured)
    if ($config['new_role_event_id'] != '') { 
        $param = $config['new_role_event_param'];
        $sharedEventManager->attach($config['new_role_event_id'], $config['new_role_event'], function($e) use($serviceManager, $param) {
            $role = $e->getParam($param)->getId();
            $service = $serviceManager->get('CivAccess\AclService');
            $service->addRole($role, 'user');
        }, 100);
    }

}

In the onModulesLoadedPost function how do I access the shared event manager? (You can see I also need to grab the service manager.)

Answer 1

如果您需要监听器中的服务管理器，则应使用MvcEvent::EVENT_BOOTSTRAP。当引导事件发生时，所有配置已经合并在一起。

您可以使用onBootstrap方法检查配置，并在需要时添加侦听器。

public function onBootstrap(MvcEvent $event)
{
    $application  = $event->getApplication();
    $eventManager = $application->getEventManager()->getSharedManager();

    $config = $application->getServiceManager()->get('Config');

    if (! empty($config['new_role_event_id'])) {
        $eventManager->attach($config['new_role_event_id'], $config['new_role_event'], [$this, 'addAclRole']);
    }
}

public function addAclRole(MvcEvent $event)
{
    $serviceManager = $event->getApplication()->getServiceManager();
    $config = $serviceManager->get('Config');

    $role = $event->getParam($config['new_role_event_param']);
    $aclService = $serviceManager->get('CivAccess\AclService');

    $aclService->addRole($role, 'user');
}

使用事件系统添加ACL角色的一个警告是，侦听器总是被添加;无论该特定请求中是否需要ACL服务CivAccess\AclService。

您可以通过将所有上述逻辑移动到创建CivAccess\AclService的服务 factory 中来避免这种情况。

How to access application object from ModuleEvent in ZF2

1 个答案: