使用参数的FluentValidation验证程序

Question

我有一个我想用来验证预订的FluentValidation验证程序。在预订时，您必须选择一种房间类型，作为您选择的旅程中的可用房型。我需要从服务中获取可用的房间类型，并传入游览代码。处理旅行代码所需的最佳方式是什么？

到目前为止，我已经得到了什么：

public class BookingValidator : AbstractValidator<Booking>, IBookingValidator 

public BookingValidator() 
{ 
    RuleFor(booking => booking.Rooms).SetValidator(new RoomValidator()) 
} 

public class RoomValidator : AbstractValidator<Room> 

public RoomValidator() 
{ 
    //validate that room.Type (eg. TWIN) exists in availableRoomTypes (eg List<string> {'SINGLE','TWIN'} 
} 

一些黑客的问题：

public class BookingValidator : AbstractValidator<Booking> 

//should/can i pass in arguments here when IoC container is wiring up IBookingValidator to BookingValidator? Seems awkward 
public BookingValidator(string tourCode) 
{ 

//if so, use argument to get available room types, pass to RoomValidator 
var availableRooms = RoomTypeService.GetAvailableRoomTypesForTour(tourCode); 

RuleFor(booking => booking.Rooms).SetValidator(new RoomValidator(availableRooms)) 

//alternatively, tourCode is available from booking - is there some way to pass it to RoomValidator? 
RuleFor(booking => booking.Rooms).SetValidator(new RoomValidator(),booking => booking.TourCode); 

//Or is there some way I should be using .Must() or Custom()?? 

} 

所以，主要的问题是如何或在哪里得到游码进入验证... ？

Answer 1

我会建议创建一个依赖于IRoomTypeService和IBookingValidator的服务。它从IRoomTypeService依赖项获取可用的房间类型，并通过属性将它们传递给验证程序。通过示例参见以下代码：

public class BookingValidationService : IBookingValidationService 
{ 
    public IRoomTypeService RoomTypeService { get; set; } 

    public IBookingValidator BookingValidator { get; set; } 

    public ValidationResult ValidateBooking(Booking booking, string tourCode) 
    { 
     BookingValidator.AvailableRooms = RoomTypeService.GetAvailableRoomTypesForTour(tourCode); 

     return BookingValidator.Validate(booking); 
    } 
}