導航屬性中的另一個 class 未映射：AutoMapper

Question

我正在嘗試使用具有導航屬性（EmployeeLeave）的 AutoMapper 類來 map，該類具有另一個類（Leave）的實例。 我能夠 map 導航屬性，但不是導航屬性中的 class

namespace Project.Core.Entities
{
 public class ApplicationUser : IdentityUser<int>
    {
        public string Title { get; set; }
          [DisplayName("First Name")]
        [Required, MaxLength(50, ErrorMessage = "Name cannot exceed 50 characters")]
        public string FirstName { get; set; }

        [DisplayName("Middle Name")]
        public string MiddleName { get; set; }

        [DisplayName("Last Name")]
        [Required]
        public string LastName { get; set; }

        public EmployeePersonalDetails EmployeePersonalDetails { get; set; }
        public ICollection<EmployeeLeave> EmployeeLeaves { get; set; }
      }
}

第二個 class 是

namespace Project.Application.Models
{
 public class ApplicationUserModel 
    {
        public string Title { get; set; }
      [DisplayName("First Name")]
        [Required, MaxLength(50, ErrorMessage = "Name cannot exceed 50 characters")]
        public string FirstName { get; set; }

        [DisplayName("Middle Name")]
        public string MiddleName { get; set; }

        [DisplayName("Last Name")]
        [Required]
        public string LastName { get; set; }


         public EmployeePersonalDetailsModel EmployeePersonalDetailsModel { get; set; }
        public ICollection<EmployeeLeaveModel> EmployeeLeavesModel{ get; set;}
     }
}

還有另一個類（Leave），它是 EmployeeLeave class 中的一個實例

namespace Project.Core.Entities
{
   public class EmployeeLeave : Entity
    {
        public ApplicationUser Employee { get; set; }
        public int EmployeeId { get; set; }
        public Leave Leave { get; set; }
        public int LeaveId { get; set; }
        public string LeaveStatus { get; set; }
    }
}

這是映射的

namespace Project.Application.Models
{
   public class EmployeeLeaveModel : BaseModel
    {
        public ApplicationUserModel Employee { get; set; }
        public int EmployeeId { get; set; }
        public LeaveModel LeaveModel { get; set; }
        public int LeaveId { get; set; }
        public string LeaveStatus { get; set; }
    }
}

這就是我映射類的方式

namespace Project.Application.Mapper
{
   public class EmployeeProfile : Profile
    {
        public EmployeeProfile()
        {
            CreateMap<Leave, LeaveModel>().ReverseMap();
            CreateMap<ApplicationUserModel, ApplicationUser>().ReverseMap()
                .ForMember(a =>a.EmployeeLeavesModel , b =>b.MapFrom( b => b.EmployeeLeaves));
            CreateMap<EmployeePersonalDetails, EmployeePersonalDetailsModel>().ReverseMap();
            CreateMap<EmployeeLeave, EmployeeLeaveModel>().ReverseMap();
           

        }
    }
}

這是計算員工年假的方法，其中 2 個班級被映射

 public async Task<double> TotalAnnualLeaveTaken(int userId)
        {
            var employee = await _employeeLeaveRepository.GetEmployee(userId);

            var user = _mapper.Map<ApplicationUserModel>(employee);
    ///rest of the method

        }

在 TotalAnnualLeavetaken() 方法中，員工通過 _employeeLeaveRepository 從 ApplicationUser class 獲取它的值，並且使用“for member()”映射導航屬性 EmployeeLeaves。 我希望 EmployeeLeave class 的請假到 map 與 EmployeeLeaveModel 的 LeaveModel。 有沒有辦法 map 呢？

Answer 1

您從EmployeeLeave到EmployeeLeaveModel的映射不知道如何處理EmployeeLeave.Leave和EmployeeLeaveModel.LeaveModel屬性。 你必須這樣告訴他：

CreateMap<EmployeeLeave, EmployeeLeaveModel>()
    .ForMember(it => it.LeaveModel, it => it.MapFrom(it2 => it2.Leave));