Invalid attaching of the ConsoleResponseSender listener

[fedys]

This issue is related to the #10

Because of the ConsoleResponseSender is attached via the delegator and delegators are called before initializers then the EventManagerAwareInitializer (re)sets the EventManager which causes lost of all previously attached listeners including the ConsoleResponseSender.

[kachar]

Related question: http://stackoverflow.com/questions/38636186/how-to-create-zf3-console-application

[weierophinney]

@fedys I think you're mis-diagnosing the root cause. The EventManagerAwareInitializer only resets the EM instance if one is not already present in the instance (see the lines immediately preceding the one you linked).

Note: I'm not saying the problem doesn't exist; I'm saying that the diagnosis is likely incorrect. I'll see if I can resolve it shortly.

[fedys]

@weierophinney The problem I described really exists. The root cause is $eventManager->getSharedManager() returns null and therefore the second part of the condition is not met.

[weierophinney]

The problem is in zend-mvc's SendResponseListener implementation/service configuration.

SendResponseListener will lazy-load an event manager instance if none is already present when getEventManager() is invoked; however, the instance is created with no arguments, which means that with zend-eventmanager v3, no shared manager is present. Also in v3, there is no way to inject a shared manager after the fact; it must be injected at instantiation (this was a change made to aid performance).

The solution will be to provide a factory for the SendResponseListener within zend-mvc that pulls the EventManager service and pushes it into a new SendResponseListener instance.

You can test this locally in the meantime. Create a factory class as follows, in module/Application/src/SendResponseListenerFactory.php (or module/Application/src/Application/SendResponseListenerFactory.php, if still using a PSR-0 structure from an older application):

namespace Application;

use Interop\Container\ContainerInterface;
use Zend\Mvc\SendResponseListener;

class SendResponseListenerFactory
{
    public function __invoke(ContainerInterface $container)
    {
        $listener = new SendResponseListener();
        $listener->setEventManager($container->get('EventManager'));
        return $listener;
    }
}

Add the following to module/Application/config/module.config.php:

'service_manager' => [
    'factories' => [
        \Zend\Mvc\SendResponseListener::class => \Application\SendResponseListenerFactory::class,
    ]
]

In addition to the above, I tested by adding a single console route, and adding console usage via the Application\Module::getConsoleUsage() method. I can verify that all works as expected once the new factory is registered; without the factory registered, no output is generated.

I'll get a PR ready for zend-mvc shortly, and tag this and other related issues when it's ready to merge.

[weierophinney]

To get the fix, please update your zend-mvc to 3.0.3:

$ composer require "zendframework/zend-mvc:^3.0.3"