Soft Delete Nhibernate | 易学教程

问题

I want to make a soft delete on my db table...i have apply following statement (as described here http://nhibernate.info/blog/2008/09/06/soft-deletes.html and in a lot of question on SO). Fattura is my table where i want apply logical delete (there is no trigger on it)

Fattura.hbm.xml

<?xml version="1.0" encoding="utf-8"?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="Paggentola.Gestionale.DL.Model"   namespace="Paggentola.Gestionale.DL.Model">
  <class name="Fattura" table="Fattura"  where="Cancellato=0">
    <id name="Id_Fattura" column="Id_Fattura">
      <generator class="native" />
    </id>
    <property name="Tipo_Fattura" column="Tipo_Fattura" />
    <property name="Cancellato" column="Cancellato" />
  </class>
</hibernate-mapping>

Fattura.cs - Model Object

using System;

namespace ModelObject
{
    public class Fattura : ISoftDeletable
    {
        public virtual int Id_Fattura { get; set; }     
        public virtual Int16 Id_Tipo_Fattura { get; set; }          
        public virtual Int16 Cancellato { get; set; }
    }
}

Delete event Listener

    public class MyDeleteEventListener : DefaultDeleteEventListener
    {
        protected override void DeleteEntity(IEventSource session, object entity,
            EntityEntry entityEntry, bool isCascadeDeleteEnabled,
            IEntityPersister persister, ISet transientEntities)
        {
            if (entity is ISoftDeletable)
            {
                var e = (ISoftDeletable)entity;
                e.Cancellato = 1;

                CascadeBeforeDelete(session, persister, entity, entityEntry, transientEntities);
                CascadeAfterDelete(session, persister, entity, transientEntities);

            }
            else
            {
                base.DeleteEntity(session, entity, entityEntry, isCascadeDeleteEnabled,
                                  persister, transientEntities);
            }
        }
    }

Configured in that way

configuration.SetListener(ListenerType.Delete, new MyDeleteEventListener());

The event fire but it doesn't set Cancellato =1. This is my DeleteCommand

   public void Delete(T entity)
    {
        NHibernateSession.Delete(entity);

        NHibernateSession.Flush();
    }

回答1:

There is an error on my mapping file. Property

 <property name="Cancellato" column="Cancellato" />

haven't same name in my database column. In that way it's not updated. I just don't understand why at runtime there is no error...

I have set same name and work fine.

来源：https://stackoverflow.com/questions/12296076/soft-delete-nhibernate

标签

nhibernate

nhibernate-3

soft-delete