CodeIgniter How to access session variables in twig templates - php

Question

somebody can help me please. I'm new in CodeIgniter and Twig. I have declared in my controller the following:
$datasession = array(
'nick' => $sess_nick,
'login_ok' => true
);
$this->session->set_userdata($datasession);
redirect('app'); //app is a controller that render the template view.
then, the question is: How can I get those variables from the twig template? I tried using:
{{ session.userdata.nick }}
but it shows like empty string.
thanks by advance.

Answer 1

To add the session variable on your twig template, you have to add the following line in your Twig library or controller.
$datasession = array(
'nick' => $sess_nick,
'login_ok' => true
);
$this->session->set_userdata($datasession);
$this->_twig->addGlobal("session", $this->CI->session);
Then on your twig template, you can print the session like this
{{ session.userdata.nick }}
Since in CodeIgniter, the session stored by user is usually in the userdata array. Otherwise, you can just simply call the session variable and name
{{ session.nick }}
Src: http://llanalewis.blogspot.co.uk/2013/08/codeigniter-add-session-in-twig.html

Answer 2

Ok, thanks to Latheesan Kanes for your help. It was so much helpful your guideness. I want to share the way I solved this problem.
As Latheesan mentioned we have to use the addGlobal() method (I added this method in my Twig library folder)
like following:
$this->_twig->addGlobal("session", $this->CI->session);
But don't forget before to load the Session library. This way.
$this->CI->load->library('session');
This way you can have your session globally in all your twig views.

Answer 3

I'm using CodeIgniter 3RC3 and the Twig-Codeigniter library (thanks Erik & Bennet!).
To enable easy session access in twig, I added one line to the /application/libraries/Twig.php file's __construct() method:
public function __construct()
{
$this->_ci = & get_instance();
$this->_ci->config->load(self::TWIG_CONFIG_FILE); // load config file
// set include path for twig
ini_set('include_path', ini_get('include_path') . PATH_SEPARATOR . APPPATH . 'third_party/Twig/lib/Twig');
require_once (string)'Autoloader.php';
// register autoloader
Twig_Autoloader::register();
log_message('debug', 'twig autoloader loaded');
// init paths
$this->template_dir = $this->_ci->config->item('template_dir');
$this->cache_dir = $this->_ci->config->item('cache_dir');
// load environment
$loader = new Twig_Loader_Filesystem($this->template_dir, $this->cache_dir);
$this->_twig_env = new Twig_Environment($loader, array(
'cache' => $this->cache_dir,
'auto_reload' => TRUE));
// ADD SESSION TO TWIG - JZ
$this->_twig_env->addGlobal('session', $this->_ci->session);
// SESSION IS NOW AVAILABLE IN TWIG TEMPLATES!
$this->ci_function_init();
}
Now that we have our session loaded into our twig instance, we access session variables (such as CI's userdata) in our twig templates like so:
<span>__ci_last_regenerate: {{ session.userdata.__ci_last_regenerate }}</span>
phptwigcodeigniter

Answer 4

I successfully used session variables in Twig with this code:
In controller:
$datasession = array(
'language' => "PHP",
'framework' => "CodeIgniter"
);
$this->session->set_userdata($datasession);
$this->twig->addGlobal("session", $this->session);
In template:
{{ session.language }}
{{ session.framework }}
I'm using https://github.com/kenjis/codeigniter-ss-twig