Nancy - Unable to resolve type: NHibernate.ISession - nhibernate

Question

My CustomBootstrapper looks like below
public class CustomBootstrapper : DefaultNancyBootstrapper
{
protected override NancyInternalConfiguration InternalConfiguration
{
get
{
//This will tell Nancy it won't have to look in the Nhibernate assemblies for implementations of our interfaces.
return NancyInternalConfiguration
.Default
.WithIgnoredAssembly(asm => asm.FullName.StartsWith("NHibernate", StringComparison.InvariantCulture))
.WithIgnoredAssembly(asm => asm.FullName.StartsWith("Fluent", StringComparison.InvariantCulture))
.WithIgnoredAssembly(asm => asm.FullName.StartsWith("Iesi", StringComparison.InvariantCulture));
}
}
protected override void ConfigureRequestContainer(TinyIoCContainer container, NancyContext context)
{
base.ConfigureRequestContainer(container, context);
//container.Register((c, p) => SessionFactory.OpenSession());
container.Register(SessionFactory.OpenSession());
}
}
I have a repository which accepts ISession as a constructor dependency. When I run my application I get an error saying Unable to resolve type: NHibernate.ISession
I can confirm that
My bootstrapper is picked up by Nanacy
The ISession registration code is executed
I have tried commenting out .WithIgnoredAssembly(asm => asm.FullName.StartsWith("NHibernate", StringComparison.InvariantCulture)) from property InternalConfiguration
I get the error with both of the ways of registering component (one is commented in my code)
I have looked at similar other questions on SO and none has helped so far.

Answer 1

I've done a sample project that uses NH with Nancy. In the bootstrapper I set up:
a BeforeRequest hook that creates the session and binds it to the session context
a AfterRequest hook that commits the session
an OnError hook that rolls back
The code is as follows:
public class Bootstrapper : WindsorNancyBootstrapper
{
// other stuff
protected override void ApplicationStartup(IWindsorContainer container, IPipelines pipelines)
{
base.ApplicationStartup(container, pipelines);
// other setup
ConfigureNHibernateSessionPerRequest(container, pipelines);
}
private void ConfigureNHibernateSessionPerRequest(IWindsorContainer container, IPipelines pipelines)
{
pipelines.BeforeRequest += ctx => CreateSession(container);
pipelines.AfterRequest += ctx => CommitSession(container);
pipelines.OnError += (ctx, ex) => RollbackSession(container);
}
private Response RollbackSession(IWindsorContainer container)
{
var sessionFactory = container.Resolve<ISessionFactory>();
if (CurrentSessionContext.HasBind(sessionFactory))
{
var requestSession = sessionFactory.GetCurrentSession();
requestSession.Transaction.Rollback();
CurrentSessionContext.Unbind(sessionFactory);
requestSession.Dispose();
}
return null;
}
private Response CreateSession(IWindsorContainer container)
{
var sessionFactory = container.Resolve<ISessionFactory>();
var requestSession = sessionFactory.OpenSession();
CurrentSessionContext.Bind(requestSession);
requestSession.BeginTransaction();
return null;
}
private AfterPipeline CommitSession(IWindsorContainer container)
{
var sessionFactory = container.Resolve<ISessionFactory>();
if (CurrentSessionContext.HasBind(sessionFactory))
{
var requestSession = sessionFactory.GetCurrentSession();
requestSession.Transaction.Commit();
CurrentSessionContext.Unbind(sessionFactory);
requestSession.Dispose();
}
return null;
}
}