Adding IAutoMappingOverride with interface for all domain classes - nhibernate

Question

I have an IAuditable interface that defines my class domain as auditable.
public interface IAuditable
{
DateTime CreateAt { get; }
IUser CreateBy { get; }
DateTime? UpdateAt { get; }
IUser UpdateBy { get; }
}
For these classes (there are many) that implement this interface, the configuration is the same! So I decided to override convention:
public class AudityConvention : IAutoMappingOverride<IAuditable>
{
public void Override(AutoMapping<IAuditable> mapping)
{
mapping.Map(p => p.CreateAt).ReadOnly().Access.Property().Not.Nullable().Not.Update().Default("getDate()").Generated.Insert();
mapping.References<Usuario>(p => p.CreateBy).Not.Nullable().Not.Update();
mapping.Map(p => p.UpdateAt).ReadOnly().Access.Property().Default("getDate()").Not.Insert().Generated.Always();
mapping.References<Usuario>(p => p.UpdateBy).Nullable().Not.Insert();
}
}
And configure it
_configuration = Fluently.Configure() // All config from app.config
.Mappings(m =>
{
m.AutoMappings.Add(
AutoMap.AssemblyOf<Usuario>()
.UseOverridesFromAssemblyOf<AudityConvention>()
.Conventions.Setup(c => c.AddFromAssemblyOf<EnumConvention>())
);
m.FluentMappings
.AddFromAssemblyOf<UsuarioMap>()
.Conventions.AddFromAssemblyOf<EnumConvention>()
;
})
.BuildConfiguration();
SessionFactory = _configuration.BuildSessionFactory();
Session = SessionFactory.OpenSession();
var export = new SchemaExport(_configuration);
export.Drop(false, true); // drop and recreate the database (Just to make sure that the settings are being applied)
export.Execute(false, true, false); // Create de database
With this app.config
<appSettings>
<add key="FluentAssertions.TestFramework" value="mstest"/>
</appSettings>
<hibernate-configuration xmlns="urn:nhibernate-configuration-2.2">
<session-factory>
<property name="connection.provider">NHibernate.Connection.DriverConnectionProvider</property>
<property name="dialect">NHibernate.Dialect.MsSql2008Dialect</property>
<property name="connection.connection_string_name">Data</property>
<property name="show_sql">true</property>
</session-factory>
</hibernate-configuration>
Exemple domain class:
public class Entidade : IAuditable
{
public virtual int Id { get; protected set; }
[StringLength(255)]
public virtual string Nome { get; set; }
// Implements IAuditable
public virtual DateTime CreateAt { get; protected set; }
public virtual IUser CreateBy { get; set; }
public virtual DateTime? UpdateAt { get; protected set; }
public virtual IUser UpdateBy { get; set; }
}
And map it:
public class EntidadeMap : ClassMap<Entidade>
{
public EntidadeMap()
{
Id(p => p.Id);
Map(p => p.Nome);
Table("Entidades");
}
}
Results:
Question
What am I doing wrong?
How to create a convention for all classes that implement IAuditable settings are the same!
The part of the configuration below was added later. From what I read, overwrite support only by AutoMappings conventions.
m.AutoMappings.Add(
AutoMap.AssemblyOf<Usuario>()
.UseOverridesFromAssemblyOf<AudityConvention>()
.Conventions.Setup(c => c.AddFromAssemblyOf<EnumConvention>())
);

Answer 1

I think you're out of luck. I don't believe overrides work on interfaces.
You're better off doing something like this:
public class BaseAuditable : IAuditable
{
....
}
public class Entidade : BaseAuditable
{ ... }
You can use
IAutoMappingOverride<BaseAuditable> instead of IAutoMappingOverride<IAuditable>
I hope I'm wrong but I tried to make it work so many times with interfaces with no luck.

Answer 2

a possiblity
var overrideMethod = typeof(AutoPersistenceModel).GetMethod("Override");
foreach (var type in typeof(IAuditable).Assembly)
{
if (typeof(IAuditable).IsAssignableFrom(type))
{
overrideMethod.MakeGenericMethod(type).Invoke(new Action<IAuditable>(MapAuditables));
}
}