导航属性中的另一个 class 未映射：AutoMapper

Question

我正在尝试使用具有导航属性（EmployeeLeave）的 AutoMapper 类来 map，该类具有另一个类（Leave）的实例。 我能够 map 导航属性，但不是导航属性中的 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; }
      }
}

第二个 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;}
     }
}

还有另一个类（Leave），它是 EmployeeLeave class 中的一个实例

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; }
    }
}

这是映射的

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; }
    }
}

这就是我映射类的方式

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();
           

        }
    }
}

这是计算员工年假的方法，其中 2 个班级被映射

 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，员工通过 _employeeLeaveRepository 从 ApplicationUser class 获取它的值，并且使用“for member()”映射导航属性 EmployeeLeaves。 我希望 EmployeeLeave class 的请假到 map 与 EmployeeLeaveModel 的 LeaveModel。 有没有办法 map 呢？

Answer 1

您从EmployeeLeave到EmployeeLeaveModel的映射不知道如何处理EmployeeLeave.Leave和EmployeeLeaveModel.LeaveModel属性。 你必须这样告诉他：

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