Phalcon\Session\Bag.. how to use them? - php

Question

In my project i use following code to access session variables via Session Bags in services:
public function __construct()
{
// Create session bag
$className = get_class($this);
$this->storage = new Phalcon\Session\Bag($className);
}
But this gives an exception "A dependency injection object is required to access the 'session' service".
Ok, it seems that we need to setup a DI here. Most simple way - to define not shared sessionBag service in DI ($di will be set automatically then). But how can i understand which name i should setup for Session bag this way? Example:
$di->set('sessionBag', function() use ($config) {
$name = ''; // ???
$bag = new \Phalcon\Session\Bag($name);
return $bag;
});

Answer 1

You can make your class inherit from Phalcon\DI\Injectable, a session bag is implicitly created when you access the persistent property:
class MyComponent extends Phalcon\DI\Injectable
{
public function someMethod()
{
$this->persistent->someName = "peter";
}
}

Answer 2

//Start the session the first time when some component request
// the session service
$di->setShared('session', function() {
$session = new Phalcon\Session\Adapter\Files();
$session->start();
return $session;
});
Example:
auth.php:
public function __construct(){
$this->_di = \Phalcon\DI::getDefault ();
$this->user = new \Phalcon\Session\Bag(get_class());
$this->user->setDI($this->_di);
}
/**
*
* #param int
*
* #return bool
*/
public function authenticate($identity){
$this->user->identity=$identity;
}
/**
* #return boolean
*/
public function isAuthenticate(){
return $this->user->identity?true:false;
}