在ObjectContext.SavingChanges当前用户身份 [英] Current user identity in ObjectContext.SavingChanges

问题描述

我使用 ObjectContext.SavingChanges 事件基于这样的对象状态更新CreatedDate / UpdatedDate列

I am using ObjectContext.SavingChanges event to update CreatedDate/UpdatedDate columns based on the object state like this

partial void OnContextCreated()
{
   //Extension of the Command Timeout to avoid processing problems.
   CommandTimeout = 600; //Time in seconds

   this.SavingChanges += new EventHandler(Entities_SavingChanges);
}

protected void Entities_SavingChanges(object sender, EventArgs e)
{
   var addedObjects = this.ObjectStateManager.GetObjectStateEntries(System.Data.EntityState.Added);
   foreach (var addedObject in addedObjects)
   {
      var propertyInfo = addedObject.Entity.GetType().GetProperty("CreatedDate");
      if (propertyInfo != null)
      {
         propertyInfo.SetValue(addedObject.Entity, DateTime.UtcNow, null);
      }
    }

    var modifiedObjects = this.ObjectStateManager.GetObjectStateEntries(System.Data.EntityState.Modified);
    foreach (var modifiedObject in modifiedObjects)
    {
       var propertyInfo = modifiedObject.Entity.GetType().GetProperty("UpdatedDate");
       if (propertyInfo != null)
       {
          propertyInfo.SetValue(modifiedObject.Entity, DateTime.UtcNow, null);
       }
    }
}

我有两列CreatedUser和UpdatedUser。

I have two more columns CreatedUser and UpdatedUser.

有什么办法来更新从上下文中那些使用当前用户名？

Is there any way to update those using current user name from context?

Ofcource， System.HttpContext.Current 为空在这里，因为这是我的单独的类库项目，我从WCF服务访问。

Ofcource, System.HttpContext.Current is null here as this is my separate class library project, which I access through WCF service.

推荐答案

如果这个code所在，你从你的ASP.NET MVC应用程序消耗WCF服务，你可以发送当前用户名作为参数传递给您的方法正在调用。

If this code resides in a WCF service that you consume from your ASP.NET MVC application you could send the current username as parameter to the method you are invoking.

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