CODEWITHSUNDEEP
nhibernatefluent-nhibernatefluent-nhibernate-mapping
Warren LaFrance
Warren LaFrance

Reputation: 582

NHibernate Fluent Add external Assembly mappings

I have a project with my mappings and entities stored in other class libraries and NHibernate layers in another project. In my testing project I would like to add these mapping via fluently configure... Mappings... via assebly and not individually. In my code below you can see I added just one entity.. But I would like to configure it to scan my other assemblies. I am sure I am just missing the obvious here.. any pointers would be greatly appreciated...

 [Test]
    public void Can_generate_schemaFluently()
    {
        var cfg = new Configuration();  
        cfg.Configure();

        Configuration configuration = null;
        ISessionFactory SessionFactory = null;
        ISession session = null;

        SessionFactory = Fluently.Configure(cfg)
            *** WOULD LIKE TO ADD MY ASSEBLIES and autoscan for objects instead ***
          .Mappings(m => m.FluentMappings
                        .Add(typeof(StudentEOMap))
                  )
           .ExposeConfiguration(x => configuration = x)
            .BuildSessionFactory();

        session = SessionFactory.OpenSession();

        object id;
        using (var tx = session.BeginTransaction())
        {
            var result = session.Get<StudentEO>(1541057);
            tx.Commit();
            Assert.AreEqual(result.StudId, 1541057);
        }
        session.Close();

    }

Upvotes: 0

Views: 1917

Answers (1)

Rabban
Rabban

Reputation: 2581

AutoMapping

If you want to filter through types, you can use the IAutomappingConfiguration and derive from DefaultAutomappingConfiguration like this:

public class StandardConfiguration : DefaultAutomappingConfiguration
{
    public override bool ShouldMap(Type type)
    {
        // Entity is the base type of all entities
        return typeof(Entity).IsAssignableFrom(type);
    }
}

You can also use DefaultAutomappingConfiguration if you have no need to filter. But my further example uses the StandardConfiguration.

Change your configuration like this, to populate your types to FluentNHibernate:

SessionFactory = Fluently.Configure(cfg)
    .Mappings(m => MapMyTypes(m))
    .ExposeConfiguration(x => configuration = x)
    .BuildSessionFactory();

And the MapMyTypes method should look like this:

private void MapMyTypes(MappingConfiguration m)
{
    m.AutoMappings.Add(AutoMap.Assemblies(new StandardConfiguration(), 
        Assembly.GetAssembly(typeof(Entity)), 
        Assembly.GetAssembly(typeof(OtherAssemblyEntity)))
    );
}

You can add multiple Assemblies and all get filtered through the StandardConfiguration.

Edit

FluentMappings

It seems that i misread your question. To add mappings you can use a similar method to achieve that but without a IAutomappingConfiguration. Just change the MapMyTypes method to:

private void MapMyTypes(MappingConfiguration m)
{
    m.FluentMappings.AddFromAssembly(Assembly.GetAssembly(typeof(EntityMap)));
}

Combine

You can also combine the FluentMapping and the AutoMapping like this:

private Action<MappingConfiguration> MapMyTypes()
{
    return m =>
    {
        MapFluent(m);
        MapAuto(m);
    };
}

Upvotes: 2

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