public User getUser() {
   if (user == null && !user_id.equals("")) {
     User sp = new User(debug, user_id);
     String back = sp.doSelect();
     if (back.equals("")) {
       user = sp;
     }
   }
   return user;
 }
 public void setUser(User val) {
   if (val != null) {
     user = val;
     user_id = user.getId();
   }
 }