Question

With this code i have an obviously

Undefined variable: user 

So, my question is how can I access the $user in add.ctp? Probably this is basic but I am new in Cake. Or the correct way is call the method like:

$user = new UsersController();
$user -> add();

?

---

UsersController.php

    public function add() {
           ...   
           $user = $facebook->getUser();
           ...
    }

add.ctp

<?php if ($user){ ?>
<a href="<?php echo $logoutUrl; ?>">Logout</a>
<?php }else{ ?>
<a href="<?php echo $loginUrl; ?>">Login with Facebook</a>
<?php } ?>

Answer 1

You need to set it:

public function add() {
       ...   
       $user = $facebook->getUser();
       $this->set('user', $user);
       ...
}

See http://book.cakephp.org/2.0/en/controllers.html#interacting-with-views