NHibernate级联SaveUpdate

Question

I'm having problems with saving associations by cascading saveupdate on my entities. I have this mapping override and would like to save it's one-to-many association by cascading, but this doesn't work.

public class DomainMappingOverride : IAutoMappingOverride<Tcf.Domain.Entities.Domain>
{
    /// <summary>
    /// Overrides the specified mapping.
    /// </summary>
    /// <param name="mapping">The mapping.</param>
    public void Override(AutoMapping<Tcf.Domain.Entities.Domain> mapping)
    {
        mapping.Table("domeinen");
        mapping.Map(m => m.Code, "code_1");
        mapping.Map(m => m.Description, "omschrijving");
        mapping.Map(m => m.Explanation, "toelichting");
        mapping.Map(m => m.CreatedBy, "createdby");
        mapping.Map(m => m.ModifiedBy, "modifiedby");
        mapping.Map(m => m.DateCreated, "createdat");
        mapping.Map(m => m.DateModified, "modifiedat");
        mapping.HasMany<SubDomain>(m => m.SubDomains).KeyColumn("domein").Cascade.SaveUpdate();
    }
}

The object itself is saved, but not the association, what am i doing wrong?

Answer 1

I believe that this error message occurs when you try to start a transaction on a session that already has an open transaction. I would need to know more about your session wrapper to give a better answer.

Answer 2

The problems was inside my AutoPersistenceModel generation. My foreign key convention didn't match up.

It was mapping to DomainId, but the column name insinde SQL server is domein.