Need help with NHibernate / Fluent NHibernate mapping

Posted by Mark Boltuc on Stack Overflow See other posts from Stack Overflow or by Mark Boltuc
Published on 2010-03-17T01:49:23Z Indexed on 2010/03/17 1:51 UTC
Read the original article Hit count: 663

Let's say your have the following table structure:

                  ==============================  
                  | Case                       |
                  ==============================
                  | Id           | int         |
                  | ReferralType | varchar(10) |
        +---------| ReferralId   | int         |---------+
        |         ==============================         |
        |                      |                         |
        |                      |                         |
======================  ======================  ======================        
| SourceA            |  | SourceB            |  | SourceC            |
======================  ======================  ======================
| Id   | int         |  | Id   | int         |  | Id   | int         |
| Name | varchar(50) |  | Name | varchar(50) |  | Name | varchar(50) |
======================  ======================  ======================

Based on the ReferralType the ReferralId contains id to the SourceA, SourceB, or SourceC

I'm trying to figure out how to map this using Fluent NHibernate or just plain NHibernate into an object model. I've tried a bunch of different things but I haven't been succesful. Any ideas?

The object model might be something like:

public class Case
{ 
  public int Id { get; set; }
  public Referral { get; set; }
}

public class Referral
{
  public string Type { get; set; }
  public int Id { get; set; }
  public string Name { get; set; }
}

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