mapping nhibernate parent/child relationship the 'other' way round

Question

using FluentNhibernate;

I am trying to persist a seemingly simple object model:

public class Product
{
    public int Id { get; set; }
    public string          


        

Answer 1

I'm not sure if Config is used elsewhere but you could ignore ConfigId as its identity

public class Config
{
    public int Id { get; set; }
    public Product Product { get; set; }
    public string ConfigField1 { get; set; }
    public string ConfigField2 { get; set; }
}

public class ProductMap : ClassMap
{
    public class ProductMap()
    {
        HasOne(p => p.Config);
    }
}

public class ConfigMap : ClassMap
{
    public class ConfigMap()
    {
        Id(c => c.Id, "ProductId").GeneratedBy.Foreign("Product");

        References(c => c.Product, "ProductId");
        Map(c => ...);
    }
}