Save a session variable

[bouni]

Hello,

I have a module on my home page which (among other things) loads a pop-up playing music on the website.
I want the module to remember that the user has already seen the home page (on a session variable ?).
This way, the pop-up won't appear every time the visitor returns to the home page.
Can you help me ? I don't know how to set a session variable safely in Prestashop or how to use cookies efficiently.

Thank you
Bouni




Bonjour,

Je dispose d'un module sur ma page d'accueil qui lance un pop-up pour jouer de la musique sur le site.
Mais je ne veux pas que ce pop-up apparaisse à chaque fois que le visiteur affiche la page d'accueil.
Comment faire pour que le module s'en souvienne ?
Variable de session ou cookie sur prestashop: je ne sais pas comment les utiliser efficacement et en sécurité.

Merci
Bouni

[alexandru.topliceanu]

Hi,

You can simply use the Cookie class. The way presta stores session data is different, it doesn't use php's native $_SESSION but it's own implementation of session cookies. It transports session data along with each request in an encrypted cookie.
The following example sets a session var:

include '/config/config.inc.php' ; 
include '/init.php' ; // this initializes the Cookie singleton, which is available in any script
function setUserPreference( $something ){
  global $cookie ; 
  $cookie->preference = $something ;
}

NOTE that Cookie uses __set() magic function so you can name your properties whatever you like.
All you have to do is to make sure you have the cookie object present in your context and:

  doSomethingWith( $cookie->preference ) ;

[masbovi]

thanks, but with this metod I set a cookie... how can I set a session variable that expires on end of session??

[alexandru.topliceanu]

Hi,

 

It should expire just like a normal apache session.

If you want to make sure the cookie is clean, check out the class Cookie.php in /classes. It has a couple of methods that might interest you: logout(), mylogout().

 

If this doesn't help, please give me more details of your problem.

 

Cheers,

Alex

[masbovi]

Alex, thanks for this reply... I have the same problem but I didn't understand how to set the expire time? I checked the Cookie.php class but I cannot understand. I want to set a cookie that expire at the end of session, when the browser is closed.

Please help me

thanks

[alexandru.topliceanu]

Hi masbovi,

 

Two ways: at $cookie initialization which is in the core core and you shouldn't modify that

OR using $cookie.setExpire(0);

Behind the scenes, the class uses php's setcookie function(docs), so setting the expire to 0/NULL makes it "expire at the end of the session (when the browser closes)", taken from the docs.

Sorry for the late reply.

[masbovi]

dear Alex

 

please be patient with me, but I'm not a very good php programmer.

 

My situation is that I create a new prestashop module and in my hook function i make:

 

global $cookie;

include (dirname(__FILE__).'/config/config.inc.php');

include (dirname(__FILE__).'/init.php');

$cookie->contaPagine = 1;

 

On this way I have the cookie "contaPagine" of value 1 and expiring 20 days later. Where I have to add the $cookie.setExpire(0); ?? I want to set the expire 0 only for this cookie.

 

I hope that I explained well

 

thanks a lot

[tabutnas]

save my day :3 thanks!!

Hi,

 

You can simply use the Cookie class. The way presta stores session data is different, it doesn't use php's native $_SESSION but it's own implementation of session cookies. It transports session data along with each request in an encrypted cookie.

The following example sets a session var:

 

include '/config/config.inc.php' ;
include '/init.php' ; // this initializes the Cookie singleton, which is available in any script
function setUserPreference( $something ){
  global $cookie ;
  $cookie->preference = $something ;
}

NOTE that Cookie uses __set() magic function so you can name your properties whatever you like.

All you have to do is to make sure you have the cookie object present in your context and:

  doSomethingWith( $cookie->preference ) ;

[prestowicz]

Worth to mention, if you seek a way to keep consistent with login state and its cookies values set (update or set override method for Cookie->mylogout() method and add unset() value for added cookie value, otherwise you can run out of sync with your code if it  has a complicated logic behind later).

class Cookie extends CookieCore
{
    /**
     * Soft logout, delete everything links to the customer
     * but leave there affiliate's informations.
     * As of version 1.5 don't call this function, use Customer::mylogout() instead;
     */
    public function mylogout()
    {
        unset($this->_content['id_compare']);
        unset($this->_content['id_customer']);
        unset($this->_content['id_guest']);
        unset($this->_content['is_guest']);
        unset($this->_content['id_connections']);
        unset($this->_content['customer_lastname']);
        unset($this->_content['customer_firstname']);
        unset($this->_content['passwd']);
        unset($this->_content['logged']);
        unset($this->_content['email']);
        unset($this->_content['id_cart']);
        unset($this->_content['id_address_invoice']);
        unset($this->_content['id_address_delivery']);
	unset($this->_content['firstTimeLogged']);//custom first time logg event variable watch
        $this->_modified = true;
    }
}

Edited March 28, 2017 by prestowicz (see edit history)