```
public class Category
{
    public virtual int Id { set; get; }
    public virtual string Name { set; get; }
    public virtual int CategoryOrder { set; get; }
    public virtual IEnumerable<News> LatestNews { set; get; }
}

public sealed class CategoryMap :ClassMap<Category>
{

    public CategoryMap()
    {
        LazyLoad();
        Id(x => x.Id);
        Map(x => x.Name);
        Map(x => x.CategoryOrder);
        HasMany(x => x.LatestNews);
    }

}

        IRepository<Category> newsRepo = new NHibernateRepository<Category>();

        using(var session = newsRepo.GetSessionFactory().OpenSession())
        using(var transaction = session.BeginTransaction())
        {
            var result = session.Query<Category>().OrderBy(x => x.CategoryOrder);
            transaction.Commit();
        }

```

I have this category class Which I want to display a (only one) News per category. Is this correct mapping? or should i change it to `Map`

When i run this, it gets all the news per category. But i want the latest news per category (only one). I can get the latest news by querying `News.DateUpdated`.

How should i change the query to get one news per category?

or how do I get some of the News? ie: limit the number of news I can query?