def setExtraDays(self):
    if len(self.story_points_extra_days) > 0:
      self.story_points_extra_days = [self.story_points_extra_days[0] - 1] + self.story_points_extra_days
      self.bonus_story_points_done = [0] + self.bonus_story_points_done
    if len(self.tasks_extra_days) > 0: