C# Fluent NHibernate如何重写抽象基类的映射

我想对我所有类型的AuditedEntity都这样做，但正如我们告诉FH忽略基本摘要一样，代码没有受到影响。我不想对我所有的实体都这样做，然后让某人忘记他们添加了一种新类型的，看起来很有希望的，但该方法已被弃用了

由于在一些相当复杂的表达式上提供了一些帮助，使其能够工作，从而导致了以下扩展：

var model = 
  AutoMap.AssemblyOf<AuditedEntity>(new AutomappingConfiguration(databaseName))
   .HideDeletedEntities();

...

public static class ReflectiveEnumerator
  {
    public static IEnumerable<Type> GetSubTypesOf<T>() where T : class
    {
      return Assembly.GetAssembly(typeof (T)).GetTypes()
        .Where(myType => myType.IsClass && 
          !myType.IsAbstract && 
          myType.IsSubclassOf(typeof (T)));
    }
  }

  public static class AutoPersistenceModelExtensions
  {
    public static AutoPersistenceModel HideDeletedEntities(this AutoPersistenceModel model)
    {
      var types = ReflectiveEnumerator.GetSubTypesOf<AuditedEntity>();

      foreach (var t in types)
      {
        var mapped = typeof(AutoMapping<>).MakeGenericType(t);

        var p = Expression.Parameter(mapped, "m");
        var expression = Expression.Lambda(Expression.GetActionType(mapped),
                                           Expression.Call(p, mapped.GetMethod("Where"),
                                                           Expression.Constant("DeletedById is null")), p);

        typeof(AutoPersistenceModel).GetMethod("Override").MakeGenericMethod(t)
          .Invoke(model, new object[] { expression.Compile() });
      }
      return model;
    }
  }

var model = 
  AutoMap.AssemblyOf<AuditedEntity>(new AutomappingConfiguration(databaseName))
   .HideDeletedEntities();

...

public static class ReflectiveEnumerator
  {
    public static IEnumerable<Type> GetSubTypesOf<T>() where T : class
    {
      return Assembly.GetAssembly(typeof (T)).GetTypes()
        .Where(myType => myType.IsClass && 
          !myType.IsAbstract && 
          myType.IsSubclassOf(typeof (T)));
    }
  }

  public static class AutoPersistenceModelExtensions
  {
    public static AutoPersistenceModel HideDeletedEntities(this AutoPersistenceModel model)
    {
      var types = ReflectiveEnumerator.GetSubTypesOf<AuditedEntity>();

      foreach (var t in types)
      {
        var mapped = typeof(AutoMapping<>).MakeGenericType(t);

        var p = Expression.Parameter(mapped, "m");
        var expression = Expression.Lambda(Expression.GetActionType(mapped),
                                           Expression.Call(p, mapped.GetMethod("Where"),
                                                           Expression.Constant("DeletedById is null")), p);

        typeof(AutoPersistenceModel).GetMethod("Override").MakeGenericMethod(t)
          .Invoke(model, new object[] { expression.Compile() });
      }
      return model;
    }
  }