I am new to using Fluent NHibernate and NHibernate for the first time. I've used a custom written mapper since about 2000 that was written in house. Made a switch to LinqToSQL about 2 years ago, and about 6 months ago to Entities.
I'd like to see what Fluent/NHibernate have to offer. However, I can't seem to get it to run correctly. The following is a copy of my classes, their references, the ClassMaps. Can someone tell me if this simple implementation is correct?
This is my mappings and object classes:
using System;
using FluentNHibernate.Mapping;
namespace MyData.Data.Mappings
{
public class Login
{
public virtual int LoginId { get; private set; }
public virtual string Username { get; set; }
public virtual User User { get; set; }
}
public class LoginClassMap : ClassMap<Login>
{
public LoginClassMap()
{
Table("Logins");
Id(d => d.LoginId).GeneratedBy.Guid();
Map(d => d.Username).Not.Nullable().Length(50);
HasOne(d => d.User).ForeignKey("UserId").Cascade.All();
}
}
public class User
{
public virtual Guid UserId{ get; private set; }
public virtual string FirstName { get; set; }
public virtual string LastName { get; set; }
public virtual Login Login { get; set; }
}
public class UserClassMap : ClassMap<User>
{
public UserClassMap()
{
Table("Users");
Id(d => d.UserId).GeneratedBy.Guid();
Map(d => d.FirstName).Not.Nullable().Length(100);
Map(d => d.LastName).Not.Nullable().Length(100);
References(r => r.Login, "UserId").Not.Nullable();
}
}
}
This is my Repository:
using System;
using System.Linq;
using NHibernate;
using FluentNHibernate.Cfg;
using FluentNHibernate.Cfg.Db;
using NHibernate.Linq;
using MyData.Data.Mappings;
namespace MyData.Data.Repository
{
public class LoginRepository
{
private readonly ISessionFactory _sessionFactory;
ISession _session;
public LoginRepository()
{
_sessionFactory = this.CreateSessionFactory();
_session = _sessionFactory.OpenSession();
}
private ISessionFactory CreateSessionFactory()
{
string connString = "MyDataConnectionString";
FluentConfiguration config = Fluently.Configure()
.Database(MsSqlConfiguration.MsSql2005.ConnectionString(
x => x.FromConnectionStringWithKey(connString)))
.ExposeConfiguration(
c => c.SetProperty("current_session_context_class", "webContext"))
.Mappings(m => m.FluentMappings.AddFromAssemblyOf<Login>());
return config.BuildSessionFactory();
}
public IQueryable<Login> GetAllLogins()
{
return _session.Linq<Login>();
}
}
}
Whenever it gets to config.BuildSessionFactory() it throws the following error:
An invalid or incomplete configuration was used while creating a SessionFactory.
The inner Exception is:
Exception has been thrown by the target of an invocation.
Is this the correct way to approach this? Any ideas or tweaks would be greatly appreciated!