How can I use Zend\Di in Zend\ServiceManager in ZF2? - php

Question

I'm trying to make the Zend\ServiceManager use Zend\Di to create my instances, since I have pre-scanned and cached DI definitions already. I realize this might come with a speed penalty but on the other hand, I need to write a lot less meta-code.
The ServiceManager documentation says that
the ServiceManager also provides optional ties to Zend\Di, allowing Di
to act as an initializer or an abstract factory for the manager.
But I don't find any examples of how make the ServiceManager use Zend\Di. I'm not even sure where I should set this up, maybe in Module::getServiceConfig()? Can anyone provide some example code?

Answer 1

The following works for me. In order to make Zend\Di compatible with Zend\ServiceManager, I extended a class MyLib\Di\Di from Zend\Di\Di which implements the AbstractFactoryInterface.
namespace MyLib\Di;
use Zend\ServiceManager\AbstractFactoryInterface;
use Zend\ServiceManager\ServiceLocatorInterface;
class Di extends \Zend\Di\Di implements AbstractFactoryInterface
{
public function canCreateServiceWithName(ServiceLocatorInterface $serviceLocator, $name, $requestedName)
{
return true;
}
public function createServiceWithName(ServiceLocatorInterface $serviceLocator, $name, $requestedName)
{
return $this->get($requestedName);
}
}
Now, I can use MyLib\Di\Di as a fallback abstract factory for Zend\ServiceManager. Here's an example of how I create my IndexController. The IndexController's dependencies (constructor parameters) are injected automatically.
class Module
{
...
public function getServiceConfig()
{
$this->di = new \MyLib\Di\Di;
$this->configureDi($this->di); // Set up definitions and shared instances
return array(
'abstract_factories' => array($this->di),
);
}
public function getControllerConfig()
{
return array(
'factories' => array(
'Survey\Controller\IndexController' => function() {
return $this->di->get('Survey\Controller\IndexController');
},
),
);
}
}

Answer 2

One option - add to config/module.config.php
'service_manager' => array(
'invokables' => array(
'Application\Service\User' => 'Application\Service\User',
),
),
then class needs to implement Zend\ServiceManager\ServiceManagerAwareInterface
When initiated, serviceManager instance is going to be injected, then you can use something like this in class:
$authService = $this->getServiceManager()->get('Zend\Authentication\AuthenticationService');
second option would be to put it into Module.php
public function getServiceConfig()