server/src/Infrastructure.EntityFramework/Models/Collection.cs

using AutoMapper;

namespace Bit.Infrastructure.EntityFramework.Models
{
    public class Collection : Core.Entities.Collection
    {
        public virtual Organization Organization { get; set; }
        public virtual ICollection<CollectionUser> CollectionUsers { get; set; }
        public virtual ICollection<CollectionCipher> CollectionCiphers { get; set; }
        public virtual ICollection<CollectionGroup> CollectionGroups { get; set; }
    }

    public class CollectionMapperProfile : Profile
    {
        public CollectionMapperProfile()
        {
            CreateMap<Core.Entities.Collection, Collection>().ReverseMap();
        }
    }
}