passing object with collection from domain to modelDTO with nhibernate

Question

above is code which I use to manipulate with data from my domain to dto model, which I use for wcf serialization. My question is how to pass object mother with collection of childrens into MotherDTO. With current code situation I pass only data without collection children. Do I need to use session in line and to add session MotherDTO dto = new MotherDTO(data, session); and to use that session to retreive collection of childrens in dto. If so, how ? Please help.

Regards,

public MotherDTO GetMotherData()
    {
        using (ISession session = instance.OpenSession())
        {
            using (ITransaction tx = session.BeginTransaction())
            {
                Mother data = session.Query<Mother>()
                    .Fetch(x => x.Childrens)
                    .FirstOrDefault();
                tx.Commit();

                MotherDTO dto = new MotherDTO(data);
                return dto;
            }
        }
    }

MotherDTO.cs

        public MotherDTO(Mother x)
        {
            Name = x.Name;
            List<Children>Childrens= new List<Children>();
            foreach (Children obj in x.Childrens)
            {
                States.Add(obj);
            }
        }

Mother.cs

 public virtual string Name
        {
            get { return _Name; }
            set
            {
                _Name = value;
            }
        }


        public virtual Iesi.Collections.Generic.ISet<Children> Childrens
        {
            get
            {
                return _Childrens;
            }
            set
            {
                if (_Childrens == value)
                    return;
                _Childrens = value;
            }
        }

Community · Accepted Answer · 2017-05-23 12:30:16Z

0

Since you're already (eager) loading your Children collection you can use Automapper to populate your DTOs.
If you want to know how to configure Automapper to work with nested collection you can read here:

Mapper.CreateMap<Order, OrderDto>()
    .ForMember(dest => dest.OrderLineDtos, opt => opt.MapFrom(src => src.OrderLines));
Mapper.CreateMap<OrderLine, OrderLineDto>()
    .ForMember(dest => dest.ParentOrderDto, opt => opt.MapFrom(src => src.ParentOrder));
Mapper.AssertConfigurationIsValid();

edited May 23, 2017 at 12:30

CommunityBot

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answered Feb 19, 2012 at 19:19

LeftyX

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