nhibernate審計與更新事件

Question

下面的代碼工作插入，但更新modifier從未設置，任何想法爲什麼？

正在運行預更新的代碼，並正確地將狀態和實體值設置爲所需的值。但是，查看生成的sql時，nhibernate不包含更新查詢中的字段。

/// <summary> Updates auditable objects </summary> 
public class AuditEventListener : IPreInsertEventListener, IPreUpdateEventListener 
{ 
    private ISecurityManager securityManager; 

    public bool OnPreInsert(PreInsertEvent args) 
    { 
     var auditable = args.Entity as IAuditable; 
     if (auditable != null) { 

      Set(x => auditable.Creator, args.Persister, auditable, args.State, SecurityManager.Identity); 
      Set(x => auditable.DateAdded, args.Persister, auditable, args.State, Clock.Now); 
     } 
     return false; 
    } 

    public bool OnPreUpdate(PreUpdateEvent args) 
    { 
     var auditable = args.Entity as IAuditable; 
     if (auditable != null) { 

      Set(x => auditable.Modifier, args.Persister, auditable, args.State, SecurityManager.Identity); 
      //Set(x => auditable.DateModified, args.Persister, auditable, args.State, Clock.Now); 
     } 
     return false; 
    } 


    /// <summary> Type safe method to update sate and entity </summary> 
    private void Set<T, U>(Expression<Func<U, T>> expression, IEntityPersister persister, U instance, object[] state, T value) 
    { 
     var member = expression.Body as MemberExpression; 
     if (member != null) { 

      var index = Array.IndexOf(persister.PropertyNames, member.Member.Name); 
      if (index == -1) { 
       return; 
      } 
      state[index] = value; 

      var property = (member.Member as PropertyInfo); 
      if (property != null) { 
       property.SetValue(instance, value, null); 
      } 
     } 
    } 

    ISecurityManager SecurityManager 
    { 
     get { /* From IoC */ } 
    } 

} 

Answer 1

編輯1：這個答案得到了提高
編輯2：這顯示了問題的真正cuase是動態更新設置爲true found here但是這個解決方案仍然爲我工作。

當您在先前調用的OnFlushDirty函數中更新它們時，更改將被保存。

public override bool OnFlushDirty(object entity, object id, object[] currentState, object[] previousState, string[] propertyNames, NHibernate.Type.IType[] types) 
{ 
    bool result = false; 

    if (entity is IAuditable) { 
     var auditable = (IAuditable)entity; 

     Set(x => auditable.Modifier, propertyNames, auditable, currentState, SecurityManager.Identity); 
     //Set(x => auditable.DateModified, args.Persister, auditable, args.State, TwentyClock.Now); 

     result = true; 
    } 

    return result; 
}