如何使用IHasManyConvention Fluent NHibernate约定在HasMany映射上设置PropertyRef？(How do I use the IHasManyConvention Fluent NHibernate convention to set the PropertyRef on a HasMany mapping?)

 目前我正在使用Fluent NHibernate生成我的数据库模式，但我希望HasMany关系中的实体指向不同的列以供参考。 IE，这就是NHibernate在创建DDL时会生成的： 
 
alter table `Pony` add index (Stable_ID),
add constraint Ponies_Stable foreign key (Stable_Id)
references `Stable` (Id);
 
 这就是我想要的： 
 
alter table `Pony` add index (Stable_ID),
add constraint Ponies_Stable foreign key (Stable_Id)
references `Stable` (EntityId);
 
 其中Stable.ID是主键，Stable.EntityId只是我设置的另一列。 
 
 我已经有一个类看起来像这样： 
 
public class ForeignKeyReferenceConvention : IHasManyConvention
{
    public void Apply(IOneToManyCollectionInstance instance)
    {
        instance.Cascade.All();
        //What goes here so that I can change the reference column?
    }
}
 
 我需要做些什么才能让参考栏发生变化？ 
 
 作为一个例子，这里是IReferenceConvention的代码看起来像做同样的事情： 
 
    public class MyReferenceConvention : IReferenceConvention
    {
        public void Apply(IManyToOneInstance instance)
        {
            instance.PropertyRef("EntityId");
            instance.Cascade.All();
        }
    }
 
 编辑： instance.Key.Column("EntityId")不是解决方案。 

Currently I'm using Fluent NHibernate to generate my database schema, but I want the entities in a HasMany relationship to point to a different column for the reference. IE, this is what NHibernate will generate in the creation DDL:
 
alter table `Pony` add index (Stable_ID),
add constraint Ponies_Stable foreign key (Stable_Id)
references `Stable` (Id);
 
This is what I want to have:
 
alter table `Pony` add index (Stable_ID),
add constraint Ponies_Stable foreign key (Stable_Id)
references `Stable` (EntityId);
 
Where Stable.ID would be the primary key and Stable.EntityId is just another column that I set.
 
I have a class already that looks like this:
 
public class ForeignKeyReferenceConvention : IHasManyConvention
{
    public void Apply(IOneToManyCollectionInstance instance)
    {
        instance.Cascade.All();
        //What goes here so that I can change the reference column?
    }
}
 
What do I have to do to get the reference column to change?
 
As an example, here is what the code for IReferenceConvention looks like to do the same thing:
 
    public class MyReferenceConvention : IReferenceConvention
    {
        public void Apply(IManyToOneInstance instance)
        {
            instance.PropertyRef("EntityId");
            instance.Cascade.All();
        }
    }
 
EDIT: instance.Key.Column("EntityId") is not the solution.

原文：https://stackoverflow.com/questions/2344475