Fluent NHibernate : How to map a 'Foreign Key' column in the mapping class

Question

I\'m starting to develop with Fluent NHiberate, and I was wondering how I create a defined \'Foreign Key\' relationship in my Mapping class.

Here\'s my class. These

Answer 1

Here you go:

public class Song
{
    public virtual int Id { get; private set; } 
    public virtual Artist Artist { get; set; } 
    public virtual string Title { get; set; }

    public class SongMap : ClassMap<Song>
    {
        SongMap()
        {
            Id(c => c.Id);
            References(c => c.Artist);  // Yes, that's all.
            Map(c => c.Title).Not.Nullable().Length(50);
        }
    }
}

That being said, it's easier using the Automapper configuration.

Answer 2

I have things to work with identifiers via next (tested on my entities, here just renamed things and no run was done, please consider it as patter to try):

References<Artist>(x => x.SongArtistID ).Column("SongArtistID").ForeignKey("ArtistID");