Getting error "Association references unmapped class" when using interfaces in model
- by Bjarke
I'm trying to use the automap functionality in fluent to generate a
DDL for the following model and program, but somehow I keep getting
the error "Association references unmapped class: IRole" when I call
the GenerateSchemaCreationScript method in NHibernate. When I replace
the type of the ILists with the implementation of the interfaces (User
and Role) everything works fine. What am I doing wrong here? How can I
make fluent use the implemented versions of IUser and IRole as defined
in Unity?
public interface IRole
{
string Title { get; set; }
IList<IUser> Users { get; set; }
}
public interface IUser
{
string Email { get; set; }
IList<IRole> Roles { get; set; }
}
public class Role : IRole
{
public virtual string Title { get; set; }
public virtual IList<IUser> Users { get; set; }
}
public class User : IUser
{
public virtual string Email { get; set; }
public virtual IList<IRole> Roles { get; set; }
}
I use the following program to generate the DDL using the
GenerateSchemaCreationScript in NHibernate:
class Program
{
static void Main(string[] args)
{
var ddl = new NHibernateSessionManager();
ddl.BuildConfiguration();
}
}
public class NHibernateSessionManager
{
private ISessionFactory _sessionFactory;
private static IUnityContainer _container;
private static void InitContainer()
{
_container = new UnityContainer();
_container.RegisterType(typeof(IUser), typeof(User));
_container.RegisterType(typeof(IRole), typeof(Role));
}
public ISessionFactory BuildConfiguration()
{
InitContainer();
return
Fluently.Configure().Database(MsSqlConfiguration.MsSql2008
.ConnectionString("ConnectionString"))
.Mappings(m => m.AutoMappings.Add(
AutoMap.AssemblyOf<IUser>()))
.ExposeConfiguration(BuildSchema)
.BuildSessionFactory();
}
private void BuildSchema(Configuration cfg)
{
var ddl = cfg.GenerateSchemaCreationScript(new
NHibernate.Dialect.MsSql2008Dialect());
System.IO.File.WriteAllLines("Filename", ddl);
}
}
