FluentValidation Validator使用參數

Question

我有一個FluentValidation驗證器，我想用它來驗證預訂。 預訂時，您必須選擇一種在您選擇的游覽中作為可用房型存在的房型。 我需要從服務中獲取可用的房型，並傳遞游覽代碼。 處理游覽代碼所需位置的最佳方法是什么？

到目前為止，我得到的是：

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'}
}

一些破解的問題：

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()??

}

所以主要的問題是如何或在哪里將巡回代碼放入驗證器...？

Answer 1

我建議創建一個依賴於IRoomTypeService和IBookingValidator的服務。 它從IRoomTypeService依賴項獲取可用的房間類型，並將它們通過屬性傳遞給驗證器。 通過示例查看以下代碼：

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);
    }
}