How to create Map between two tables using where statement? - entity-framework

Question

I have Doctor and Appointment tables.On my DTO I have DoctorName field and I want to bring that name from doctor table by AutoMapper.I tried to Map like below on AutoMapperProfile but it says cannot convert from 'bool' to 'System.Func<<char,bool>. Both values are string that I want to map so doesnt make sense.Here my Models,DTO and CreateMap below.
Doctor
public class Doctor
{
public int Id { get; set; }
public string Name { get; set; }
public string Title { get; set; }
public Department Department { get; set; }
public int DepartmentId { get; set; }
}
Appointment
public class Appointment
{
public int Id { get; set; }
public DateTime AppointmentDate { get; set; }
public int DoctorId { get; set; }
public Doctor Doctor { get; set; }
public int? PatientId { get; set; }
public Patient Patient { get; set; }
}
AutoMapperProfile
CreateMap<Appointment, AvilableAppointmentDto>()
.ForMember(dep => dep.DoctorName,
opt => opt.MapFrom(src =>
src.Doctor.Name.Where(src.DoctorId==src.Doctor.Id)));
DTO
public class AvilableAppointmentDto
{
public int Id { get; set; }
public DateTime AppointmentDate { get; set; }
public int DoctorId { get; set; }
public string DoctorName { get; set; }
}
UPDATE(Solution)
Dto should be mapped as IENumerable.Like below
var returnAppointments = _mapper.Map<IEnumerable<AvilableAppointmentDto>>(availableAppointments);

Answer 1

Below thing works for me
Mapping:
CreateMap<Appointment, AvilableAppointmentDto>(MemberList.Destination)
.ForMember(dep => dep.DoctorName, opt => opt.MapFrom(src => src.Doctor.Name));
Entity Classes:
public class Doctor
{
public int Id { get; set; }
public string Name { get; set; }
public string Title { get; set; }
public int DepartmentId { get; set; }
}
public class Appointment
{
public int Id { get; set; }
public DateTime AppointmentDate { get; set; }
public int DoctorId { get; set; }
public Doctor Doctor { get; set; }
public int? PatientId { get; set; }
}
public class AvilableAppointmentDto
{
public int Id { get; set; }
public DateTime AppointmentDate { get; set; }
public int DoctorId { get; set; }
public string DoctorName { get; set; }
}
controller:
[HttpGet]
public ActionResult Get([FromServices] IMapper mapper)
{
Appointment ap = new Appointment()
{
AppointmentDate = DateTime.Now,
DoctorId = 1,
Id = 2,
PatientId = 3,
Doctor = new Doctor()
{
Id = 1,
DepartmentId = 2,
Name = "Ajay",
Title = "Mr"
}
};
var x = mapper.Map<AvilableAppointmentDto>(ap);
return Ok(x);
}
startup.cs
public void ConfigureServices(IServiceCollection services)
{
var mappingConfig = new MapperConfiguration(mc =>
{
mc.AddProfile<MappingProfile>();
});
var mapper = mappingConfig.CreateMapper();
services.AddSingleton(mapper);
}
Package ref.
<PackageReference Include="AutoMapper" Version="8.0.0" />
<PackageReference Include="AutoMapper.Extensions.Microsoft.DependencyInjection" Version="6.0.0" />