NHibernate Criteria Find by Id

Posted by user315648 on Stack Overflow See other posts from Stack Overflow or by user315648
Published on 2010-04-30T16:05:19Z Indexed on 2010/04/30 16:07 UTC
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Hello,

I have 2 entities:

public class Authority : Entity
{
    [NotNull, NotEmpty]
    public virtual string Name { get; set; }

    [NotNull]
    public virtual AuthorityType Type { get; set; }

}

public class AuthorityType : Entity
{
    [NotNull, NotEmpty]
    public virtual string Name { get; set; }

    public virtual string Description { get; set; }
}

Now I wish to find all authorities from repository by type. I tried doing it like this:

    public IList<Authority> GetAuthoritiesByType(int id)
    {
        ICriteria criteria = Session.CreateCriteria(typeof (Authority));
        criteria.Add(Restrictions.Eq("Type.Id", id));
        IList<Authority> authorities = criteria.List<Authority>();
        return authorities;            
    }

However, I'm getting an error that something is wrong with the SQL ("could not execute query". The innerexception is following: {"Invalid column name 'TypeFk'.\r\nInvalid column name 'TypeFk'."}

Any advice ? Any other approach ?

Best wishes, Andrew

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