public OrderManager(IOrderDal orderDal, ISkateboardDal skateboardDal, IColorDal colorDal)
 {
     _orderDal     = orderDal;
     _skateboarDal = skateboardDal;
     _colorDal     = colorDal;
 }
 public SkateboardManager(ISkateboardDal skateboardDal)
 {
     _skateboardDal = skateboardDal;
 }