/**
* Setta il token per l'utente
*
* @param int $ttl
* @return User
*/
public function writeToken($ttl = self::DEFAULT_TOKEN_TTL)
{
$salt = base64_encode($this->email . $this->id);
$this->token = Session::generateToken($salt);
$this->refreshToken($ttl);
$this->save();
return $this;
}
