Fluent NHibernate join single column from another table

Question

I\'m using Fluent NHibernate and have two tables;

Customer [ID, Name, LanguageID]

Languages [ID, Description]

I have a Customer entity with the following

Answer 1

I think you can create an Entity for Language. Later in the Entity for Customer have a reference to that Entity.

public class Customer
{
    public virtual int Id { get; set; }
    public virtual string Name{ get; set; }
    public virtual Language Language { get; set; }
}

Then in the CutomerMap you should do:

public class CustomerMap : ClassMap
{
    public CustomerMap()
    {
        Id(x => x.Id);
        Map(x => x.Name);
        References(x => x.Language);
    }
}

Later when you call your costumers you can decide show the "instance.Language.Description"

For example in MVC, in the controller you can do:

 public ActionResult Index()
    {
        using (ISession session = NHibernateHelper.OpenSession())
        {
            var customers = session.Query().Fetch(x => x.Language).ToList();
            return View(customers);
        }
    }

And in the View:

@foreach (var item in Model) {

    
        @Html.DisplayFor(modelItem => item.Name)
    
    
        @Html.DisplayFor(modelItem => item.Language.Description)
    
    
        @Html.ActionLink("Edit", "Edit", new { id=item.Id }) |
        @Html.ActionLink("Details", "Details", new { id=item.Id }) |
        @Html.ActionLink("Delete", "Delete", new { id=item.Id })
    

}

Hope this helps.