private function display_profile()
 {
     global $rep, $views;
     $user = Model_user::getUserById($_SESSION["id"]);
     $adventures = Model_adventure::getUserAdventures($_SESSION["id"]);
     require $rep . $views["profile"];
 }
 private function display_profile()
 {
     global $rep, $views;
     $user_id = isset($_GET['id_user']) ? $_GET['id_user'] : '';
     $user = Model_user::getUserById($user_id);
     $adventures = Model_adventure::getUserAdventures($user_id);
     require $rep . $views["profile"];
 }