[fluent-nhib] Issue with one to many relationship

[rohmer]

What I need to do is rather simple, but I seem to be missing
something.

I have 2 objects in my example, a configuration object and mediatype
object.  When I write out the objects, I only get the last child.  Ive
tried OneToMany, References, and many permutations of saving and
commiting, but to no use.

This is in Sql Compact 3.5 sp 2

One configuration maps to 0-X mediatypes.  Here are my entities:

Parent
 public class CConfigEntity
    {
        public virtual IList<CMediaFileTypesEntity> MediaTypes { get;
set; }

        public CConfigEntity()
        {
            FileSystems = new List<CFileSystemEntity>();
            MediaTypes = new List<CMediaFileTypesEntity>();
        }

        public virtual void AddMediaType(CMediaFileTypesEntity
mediaType)
        {
            MediaTypes.Add(mediaType);
        }
    }

Child
    public class CMediaFileTypesEntity
    {
        public virtual Guid ID { get; private set; }

        public virtual string Description { get; set; }

        public virtual string Extension { get; set; }
    }

Here are the Maps:

    public class CConfigMap : ClassMap<CConfigEntity>
    {
        public CConfigMap()
        {
            Table("Configuration");
            Id(x =>
x.ID).GeneratedBy.GuidComb().UnsavedValue("00000000-0000-0000-0000-000000000000");
           HasMany<CMediaFileTypesMap>(x =>
x.MediaTypes).Cascade.All();
        }
    }

    public class CMediaFileTypesMap : ClassMap<CMediaFileTypesEntity>
    {
        public CMediaFileTypesMap()
        {
            Table("MediaFileTypes");
            Id(x => x.ID, "ID").GeneratedBy.GuidComb();
            Map(x => x.Description);
            Map(x => x.Extension);
        }
    }

And here is the code that adds them:

            for (int i = 0; i < Extensions.Length / 2; i++)
            {
                tmp.Description = Extensions[i, 1];
                tmp.Extension = Extensions[i, 0];
                session.Save(tmp);
                configEntity.AddMediaType(tmp);
            }
            session.Save(configEntity);
            transaction.Commit();
            transaction.Dispose();
            session.Close();
        }

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