Automapper config

AutoMapperProfile.cs

   // one way mapping shown for clarity sake and lots of ForMember() relationships removed

    public class AutoMapperProfileWeb : Profile
    {
        public override string ProfileName
        {
            get { return "SomeApp.Web"; }
        }
    
        protected override void Configure()
        { 
            Mapper.CreateMap<TheEvent, EventModel>()
                ;

            Mapper.CreateMap<Order, OrderModel>()
                ;
            
            Mapper.CreateMap<OrderLine, OrderLineModel>()
                ;
            
            Mapper.CreateMap<Item, ItemModel>()
                ;
        }
    }

DomainEFEntities.cs

    public class TheEvent : BaseDomainObject<long>
    {
        public TheEvent()
        {
            Orders = new HashSet<Order>();
        }

        public DateTime EventDate { get; set; }
        public string Location { get; set; }

        public virtual ICollection<Order> Orders { get; set; }
    }

    public class Order : BaseDomainObject<long>
    {
        public Order()
        {
            OrderLines = new HashSet<OrderLine>();
        }

        public DateTime OrderDate { get; set; }
        
        public virtual Event Event { get; set; }
        public long EventId { get; set; }
        
        public virtual ICollection<OrderLine> OrderLines { get; set; }
    }

    public class OrderLine : BaseDomainObject<long>
    {
        public virtual Item Item { get; set; }
        public long ItemId { get; set; }
        
        public int Quantity { get; set; }
        
        public virtual Order Order { get; set; }
        public long OrderId { get; set; }

    }

    public class Item : BaseDomainObject<long>
    {
        public string Name { get; set; }
        public string Description { get; set; }
    }

ModelItems.cs

   //  lots of stuff removed for brevity

    public class EventModel : IModel
    {
        public long Id { get; set; }

        public EventModel()
        {
            Orders = new HashSet<OrderModel>();
        }

        public ICollection<OrderModel> Orders { get; set; }

        public DateTime EventDate { get; set; }
        public string Location { get; set; }
    }

    public class OrderModel : IModel
    {
        public OrderModel()
        {
            OrderLines = new HashSet<OrderLineModel>();
        }

        public long Id { get; set; }
        public long EventId { get; set; }
        public DateTime OrderDate { get; set; }

        public virtual ICollection<OrderLineModel> OrderLines { get; set; }

        public EventModel Event { get; set; }
    }

    public class OrderLineModel : IModel
    {
        public long Id { get; set; }

        public int Quantity { get; set; }
        
        public ItemModel Item { get; set; }
        public long ItemId { get; set; }
    }

    public class ItemModel : IModel
    {
        public long Id { get; set; }
        public string Name { get; set; }
        public string Description { get; set; }
    }

Workaround for now:

    public class EventIndexViewModel : EventModel
    {
    }

    Mapper.CreateMap<TheEvent, EventIndexViewModel>()
                .ForMember(dest => dest.Orders, opt => opt.Ignore())
                ;