def howToDoItInScala(task: Task) = {
  val id = if (task.id() == 0) {
    //object not stored yet in db
    //store it now
    task.save()
    // retrieve the new database id
    Some(task.id())
  } else {
    // dont change the retVal if object did exist already in db
    task.save()
    None
  }
  id.map(newFunction)
}