ZF2 SessionManager usage - php

Question

I am new to ZF2 and not quite used to how to do stuff. I want to use session to keep track of an user (remember me). I had this code in one part of my class:
$sessionManager = new \Zend\Session\SessionManager();
$sessionManager->rememberMe($time);
// i want to keep track of my user id too
$populateStorage = array('user_id' => $user->getId());
$storage = new ArrayStorage($populateStorage);
$sessionManager->setStorage($storage);
Ok, so far so good. When i try:
var_dump($sessionManager->getStorage());
I get the expected data.
In another part of my program, i want to retreive my data again (a bit like containers):
$sessionManager = new \Zend\Session\SessionManager();
var_dump($sessionManager->getStorage());
This only returns an empty object.
I guess this is due to the "new" and i think i have to implement SessionManager in a different way, but how? I do not know. This is what i came up with:
In my Module i now have:
public function onBootstrap(\Zend\Mvc\MvcEvent $e)
{
$config = $e->getApplication()
->getServiceManager()
->get('Configuration');
$sessionConfig = new SessionConfig();
$sessionConfig->setOptions($config['session']);
$sessionManager = new SessionManager($sessionConfig);
$sessionManager->start();
In my module.config:
'session' => array(
'remember_me_seconds' => 2419200,
'use_cookies' => true,
'cookie_httponly' => true,
),
But how to procede? How do i get the instance for my sessionManager?

Answer 1

There is not well documented SessionManagerFactory (zf2 api doc) and SessionConfigFactory (zf2 api doc). With those is instantiate SessionManager very easy, just put these factories to your ServiceManager configuration:
'service_manager' => [
'factories' => [
'Zend\Session\SessionManager' => 'Zend\Session\Service\SessionManagerFactory',
'Zend\Session\Config\ConfigInterface' => 'Zend\Session\Service\SessionConfigFactory',
],
],
and to module configuration put your session options, under the session_config key:
'session_config' => [
'remember_me_seconds' => 2419200,
'use_cookies' => true,
'cookie_httponly' => true,
],
and that's it, now you can grab SessionManager from service locator anywhere, for example in controller:
/** #var Zend\Session\SessionManager $sm */
$sessionManager = $this->serviceLocator->get('Zend\Session\SessionManager');
This is available as of 2.2 version of Zend Framework (related pull request).

Answer 2

In my project i use example from other source (book or official documentation, forget).
Main Module.php file:
namespace Application;
class Module
{
public function getServiceConfig()
{
return array(
'factories' => array(
'Zend\Session\SessionManager' => function ($sm){
$config = $sm->get('config');
if (isset($config['session'])){
$session_config = $config['session'];
$sessionConfig = null;
if (isset($session_config['config'])){
$class = isset($session_config['config']['class'])
? $session_config['config']['class']
: 'Zend\Session\Config\SessionConfig';
$options = isset($session_config['config']['options'])
? $session_config['config']['options']
: array();
$sessionConfig = new $class();
$sessionConfig->setOptions($options);
}
$sessionStorage = null;
if (isset($session_config['storage'])){
$class = $session_config['storage'];
$sessionStorage = new $class();
}
$sessionSaveHandler = null;
if (isset($session_config['save_handler'])){
// class should be fetched from service manager
// since it will require constructor arguments
$sessionSaveHandler = $sm->get($session_config['save_handler']);
}
$sessionManager = new SessionManager(
$sessionConfig,
$sessionStorage,
$sessionSaveHandler
);
if (isset($session_config['validator'])){
$chain = $sessionManager->getValidatorChain();
foreach ($session_config['validator'] as $validator){
$validator = new $validator();
$chain->attach('session.validate', array(
$validator,
'isValid'
));
}
}
} else {
$sessionManager = new SessionManager();
}
Container::setDefaultManager($sessionManager);
return $sessionManager;
},
),
);
}
}
My config/autoload/global.php config file:
return array(
'session' => array(
'config' => array(
'class' => 'Zend\Session\Config\SessionConfig',
'options' => array(
'use_cookies' => true,
),
),
'storage' => 'Zend\Session\Storage\SessionArrayStorage',
'validators' => array(
array(
'Zend\Session\Validator\RemoteAddr',
'Zend\Session\Validator\HttpUserAgent',
),
),
),
);
To get user_id from session:
$sessionStorage = $sm->get('Zend\Session\SessionManager')
->getStorage();
$user_id = $sessionStorage->user_id;