public function onAfterWrite()
 {
     if ($this->getFacebookData() && $this->PostToFacebook) {
         $params = $this->getFacebookData();
         $facebook = new PostToFacebook();
         $resp = $facebook->sendToFacebook($params);
         $this->PostToFacebook = false;
     }
 }
 public static function set_facebook_user_id($key)
 {
     self::$facebook_user_id = $key;
 }