automapper：将一个对象映射到多个对象

Question

我有以下领域模型（一类）：

public class DriverDomain
{
    public int Id { get; set; }

    public int CompanyId { get; set; }

    public int? TruckId { get; set; }

    public int? TrailerId { get; set; }

    public string FirstName { get; set; }

    public string LastName { get; set; }

    public int? UnitNo { get; set; }

    public int? GpsId { get; set; }

    public string CompanyFEIN { get; set; }

    public string CompanyName { get; set; }

    public string CompanyAddress { get; set; }

    public string CompanyCity { get; set; }

    public string CompanyZIP { get; set; }

    public string CompanyState { get; set; }

    public System.DateTime? DOB { get; set; }

    public string SSN { get; set; }

    public string PhoneNo { get; set; }

    public string StreetAddress { get; set; }

    public string City { get; set; }

    public string State { get; set; }

    public string ZIP { get; set; }

    public string DLno { get; set; }

    public string Dlstate { get; set; }

    public System.DateTime? DLexp { get; set; }

    public System.DateTime? MedExp { get; set; }

    public System.DateTime? HireDate { get; set; }

    public System.DateTime? TermDate { get; set; }

    public bool Active { get; set; }

    public bool DrugTest { get; set; }

    public string Notes { get; set; }

    public string CardNo { get; set; }

    public string EmployeeNo { get; set; }

    public bool? OwnerOp { get; set; }

    public bool OccAcc { get; set; }

    public decimal? WeeklyOccAcc { get; set; }

    public bool Ifta { get; set; }

    public decimal? WeeklyIfta { get; set; }

    public bool TrailerRental { get; set; }

    public decimal? WeeklyTrailerRent { get; set; }

    public bool CargoIns { get; set; }

    public decimal? WeeklyCargoIns { get; set; }

    public decimal? PilotRebate { get; set; }

    public bool OnlineAccess { get; set; }

    public int? OnlineId { get; set; }

    public bool ViewedSchedule { get; set; }

    public int SchedulePriority { get; set; }

    public bool Hourly { get; set; }

    public decimal? HourlyPay { get; set; }

    public string IpassTransponderId { get; set; }

    public System.DateTime? RecordDate { get; set; }

    public string RecordChangedBy { get; set; }

    public string EmgcontactName { get; set; }

    public string EmgcontactPhone { get; set; }

    public string EmgcontactRelationship { get; set; }

    public string Nickname { get; set; }

    public string UserId { get; set; }

    public string AspNetUserName { get; set; }

    public string AvatarUrl { get; set; }

    public bool PaidByPercent { get; set; }

    public decimal? PercentPaid { get; set; }

    public bool PaidByMile { get; set; }

    public decimal? PayPerMile { get; set; }

    public bool CompanyPlates { get; set; }

    public decimal? WeeklyPlateCharge { get; set; }

    public bool EnableEscrowDeductionOnPayroll { get; set; }

    public decimal WeeklyEscrowDeduction { get; set; }

    public bool ShowPersonalConveyance { get; set; } = false;

    public bool ShowYardMoves { get; set; } = false;

    public string StartTimeOfDay { get; set; } = "00:00:00.000";
}

还有很多视图模型类，每一个都可以映射到这个领域类：

public class DriverPersonalInfoVM
{
    public int Id { get; set; }

    public string FirstName { get; set; }

    public string LastName { get; set; }

    public System.DateTime? DOB { get; set; }

    public string SSN { get; set; }

    public string PhoneNo { get; set; }

...

public class DriverEmploymentVM
{
    public int Id { get; set; }

    public System.DateTime? HireDate { get; set; }

    public System.DateTime? TermDate { get; set; }

    public bool DrugTest { get; set; }

    public bool OnlineAccess { get; set; }

    public bool ViewedSchedule { get; set; }

地图规则：

        CreateMap<Domain.POCO.Driver.DriverDomain, DriverPersonalInfoVM>();
        CreateMap<Domain.POCO.Driver.DriverDomain, DriverEmploymentVM>();
        CreateMap<Domain.POCO.Driver.DriverDomain, DriverPayrollVM>();
        CreateMap<Domain.POCO.Driver.DriverDomain, DriverCompensationVM>();
        CreateMap<Domain.POCO.Driver.DriverDomain, DriverFuelTollsVM>();
        CreateMap<Domain.POCO.Driver.DriverDomain, DriverAvatarVM>();

它工作正常。 但现在我有以下视图模型类：

public class DriverEditVM
{
    public DriverEditVM(int id)
    {
        Id = id;
        PersonalInfo = new DriverPersonalInfoVM { Id = id };
        Employment = new DriverEmploymentVM { Id = id };
        Payroll = new DriverPayrollVM { Id = id };
        Compensation = new DriverCompensationVM { Id = id };
        FuelTolls = new DriverFuelTollsVM { Id = id };
        Avatar = new DriverAvatarVM { Id = id };
    }

    public DriverPersonalInfoVM PersonalInfo { get; set; }
    public DriverEmploymentVM Employment { get; set; }
    public DriverPayrollVM Payroll { get; set; }
    public DriverCompensationVM Compensation { get; set; }
    public DriverFuelTollsVM FuelTolls { get; set; }
    public DriverAvatarVM Avatar { get; set; }
}

和地图规则：

        CreateMap<Domain.POCO.Driver.DriverDomain, DriverEditVM>();

但是当我尝试将域对象映射到 DriverEditVM 时：

            var driver = _driverService.GetDriver(id.Value);
            DriverEditVM model = mapper.Map<DriverEditVM>(driver);

我有空属性 PersonalInfo、Employment 等。如何映射？

Answer 1

由于您已经为构成DriverEditVM 一部分的所有其他视图模型创建了地图，因此您应该能够这样做：

CreateMap<Domain.POCO.Driver.DriverDomain, DriverEditVM>()
    .ForAllMembers(opt => opt.MapFrom(src => src));

编辑

由于某些成员没有被映射，有两种方法，显式忽略未映射的成员或显式映射映射的成员：

CreateMap<Domain.POCO.Driver.DriverDomain, DriverEditVM>()
    .ForMember(dest => dest.IgnoredProperty1, opt => opt.Ignore())
    .ForMember(dest => dest.IgnoredProperty2, opt => opt.Ignore())
    .ForAllOtherMembers(opt => opt.MapFrom(src => src));

或者

CreateMap<Domain.POCO.Driver.DriverDomain, DriverEditVM>()
    .ForMember(dest => dest.PersonalInfo, opt => opt.MapFrom(src => src))
    .ForMember(dest => dest.Employment, opt => opt.MapFrom(src => src))
    .ForMember(dest => dest.Payroll, opt => opt.MapFrom(src => src))
    .ForMember(dest => dest.Compensation, opt => opt.MapFrom(src => src))
    .ForMember(dest => dest.FuelTolls, opt => opt.MapFrom(src => src))
    .ForMember(dest => dest.Avatar, opt => opt.MapFrom(src => src))
    .ForAllOtherMembers(opt => opt.Ignore());

Answer 2

解决了这个问题：

        CreateMap<Domain.POCO.Driver.DriverDomain, DriverEditVM>()
            .ForMember(p => p.PersonalInfo, p => p.MapFrom(src => src))
            .ForMember(p => p.Avatar, p => p.MapFrom(src => src))
            .ForMember(p => p.Compensation, p => p.MapFrom(src => src))
            .ForMember(p => p.Employment, p => p.MapFrom(src => src))
            .ForMember(p => p.FuelTolls, p => p.MapFrom(src => src))
            .ForMember(p => p.Payroll, p => p.MapFrom(src => src))
            ;