Fluent NHibernate add assembly runtime

Question

I have the following structure in Visual Studio

Control (Solution)
  AppDB (Project)
    Classes (Folder)
       Piece.cs
    Mapping (Folder)
       PieceMap.cs

I add the assembly map at runtime doing the following instructions

Configuration hibernateConfiguration = new Configuration();
hibernateConfiguration.SetProperty("connection.connection_string", "server=(local);Data Source="+pRutaDB);
hibernateConfiguration.AddAssembly("AppDB.Mapping.PieceMap");
hibernateConfiguration = hibernateConfiguration.Configure();
NHibernate.ISessionFactory sessionFactory = hibernateConfiguration.BuildSessionFactory();
NHibernate.ISession session = sessionFactory.OpenSession();
NHibernate.ITransaction tr = session.BeginTransaction();
Piece p = new Piece();
p.name = "Test Piece";
pSession.SaveOrUpdate(p);
tr.Commit();

But when the tr.Commit() instruction arrives, thew following error shows up

Error: NHibernate.MappingException: Could not add assembly AppDb.Mapping.PieceMap ---> System.IO.FileNotFoundException

Anyone can tell me how to add the assembly at runtime?

Thanks!

Edit: with the instruction the error changed hibernateConfiguration.AddAssembly(typeof(GeometriaDB.Mapping.PieceMap).Assembly);

Now the following error appears:

NHibernate.MappingException: No persister for: GeometriaDB.Clases.Proyecto

So now why is that error appearing?

Your next error has probably nothing to do with the first, better ask a dedicated question for it. — Frédéric, May 18 '17 at 20:47
But ensure first it is not already replied, as [in this one](http://stackoverflow.com/q/57804/1178314). — Frédéric, May 18 '17 at 20:49

Renat Seyfetdinov · Answer 1 · 2017-05-18T14:09:26.180

0

At least you should add .dll to assembly name:

hibernateConfiguration.AddAssembly("AppDB.Mapping.PieceMap.dll");

And also dll should be in same directory or you should show full path to assembly.

Another way you can use is:

hibernateConfiguration.AddAssembly(typeof(AppDB.Mapping.PieceMap.<and any class name>).Assembly);

edited May 18 '17 at 14:09

answered May 18 '17 at 13:51

Renat Seyfetdinov

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Why to add .dll if the mapping is a cs file? – a.ras2002 May 18 '17 at 14:03
I don't know exactly, but I think when you show parameter as string, nhibernate try to load assembly from file. – Renat Seyfetdinov May 18 '17 at 14:10
I've tried with the first possibility but it didn't work. Now the second one seem to work but it fires a new Exception. I'm updating the initial post with the new Exception – a.ras2002 May 18 '17 at 14:22
`PieceMap` is `public` and inheriting from correct base class? Also does `Proyecto` have a mapping? – David Osborne May 18 '17 at 15:35
The problem now with mappings. You should add mappings. – Renat Seyfetdinov May 19 '17 at 12:35

Fluent NHibernate add assembly runtime

1 Answers1