The FluentNHibernate concept is awesome! However, right now it looks
like an untouchable treasure.
I downloaded and ran the Your_first_project project, which worked
fine.
I now branching out on my own, and finally have a project that
compiled. But, when running it, it first gave me a dialog box asking
for some kind of information, which evidently I typed wrong. I don't
seem to have a second chance at whatever that dialog presented.
Now, the following error shows up when it gets to session.SaveOrUpdate
(see code below)
NHibernate.MappingException was unhandled
Message="No persister for: ORTest.TestClass"
Source="NHibernate"
StackTrace:
at NHibernate.Impl.SessionFactoryImpl.GetEntityPersister(String
entityName)
at NHibernate.Impl.SessionImpl.GetEntityPersister(String
entityName, Object obj)
at NHibernate.Engine.ForeignKeys.IsTransient(String entityName,
Object entity, Nullable`1 assumed, ISessionImplementor session)
at
NHibernate.Event.Default.AbstractSaveEventListener.GetEntityState(Object
entity, String entityName, EntityEntry entry, ISessionImplementor
source)
at
NHibernate.Event.Default.DefaultSaveOrUpdateEventListener.PerformSaveOrUpdate(SaveOrUpdateEvent
event)
at
NHibernate.Event.Default.DefaultSaveOrUpdateEventListener.OnSaveOrUpdate(SaveOrUpdateEvent
event)
at
NHibernate.Impl.SessionImpl.FireSaveOrUpdate(SaveOrUpdateEvent event)
at NHibernate.Impl.SessionImpl.SaveOrUpdate(Object obj)
at ORTest.Program.Main(String[] args) in C:\Visual Studio
Projects\ORTest\ORTest\Program.cs:line 21
at System.AppDomain._nExecuteAssembly(Assembly assembly,
String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile,
Evidence assemblySecurity, String[] args)
at
Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object
state)
at System.Threading.ExecutionContext.Run(ExecutionContext
executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException:
Here's the code I'm using:
class Program {
static void Main(string[] args) {
var sessionFactory = CreateSessionFactory();
using (var session = sessionFactory.OpenSession()) {
var test = new TestClass();
test.X = 15;
session.SaveOrUpdate(test);
}
}
private static ISessionFactory CreateSessionFactory() {
return Fluently.Configure()
.Database(MsSqlConfiguration.MsSql2005.ConnectionString("User
ID=.............."))
.Mappings(m =>
m.FluentMappings.AddFromAssemblyOf<Program>())
.ExposeConfiguration(BuildSchema)
.BuildSessionFactory();
}
private static void BuildSchema(Configuration config) {
// delete the existing db on each run
if (File.Exists(DbFile))
File.Delete(DbFile);
// this NHibernate tool takes a configuration (with
mapping info in)
// and exports a database schema from it
new SchemaExport(config)
.Create(false, true);
}
class TestClass {
public virtual int ID { get; private set; }
public virtual int X { get; set; }
}
class TestClassMap : FluentNHibernate.Mapping.ClassMap<TestClass>
{
public TestClassMap() {
Table("TestClass"); // my (wrong) guess at how to provide
a persister.
Id(x => x.ID);
Map(x => x.X);
}
}
My table:
CREATE TABLE [dbo].[TestClass](
[ID] [int] IDENTITY PRIMARY KEY,
[X] [int] NULL)
Can anyone help point me in the right direction?
I appreciate your help!
Kurt
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