ZF2 - 如何在Module.php中检索控制器实例？

Question

I am implementing a login widget via a view helper. I need to pass the instance of my authentication controller when creating the instance of the widget:

public function getViewHelperConfig()
{
    return array(
        'factories' => array(
            'loginWidget' => function (???) {
                $authController = ???
                return new \Application\View\Helper\LoginWidget($authController);
            }
        )
    );
}

The authentication controller is declared in the module.config.php:

'controllers' => array(
    'invokables' => array(
        'Main\Controller\Index' => 'Main\Controller\IndexController',
        'Main\Controller\Auth'    => 'Main\Controller\AuthController'
    ),
),

How can I proceed?

Answer 1

A view helper shouldn't have to depend on a controller instance. You might consider extracting the code into a service and using the same service into the view helper and the auth controller.

Just in case this is not possible, I found the ZF2 source code responsible for controller instantiation: https://github.com/zendframework/zend-mvc/blob/master/src/DispatchListener.php

We learn that controllers are build via the ControllerManager service. So you should be able to do something like this.

'loginWidget' => function ($helperPluginManager) {
    $authController = $helperPluginManager
        ->getServiceLocator()
        ->get('ControllerManager')
        ->get('Main\Controller\Auth')
    ;
    return new \Application\View\Helper\LoginWidget($authController);
}