在 Fluent-nhibernate 中，保存多对一实体，为什么我应该为引用的实体提供一个版本
我有以下实体：
public class Worker
{
public int WorkerID {get;set;}
public string Name { get;set;}
public int version { get;set;}
}
public class TransferOrder
{
public int TransferOrderID { get;set;}
public Worker workerTobeTransfered{get;set;}
public int version { get;set;}
}
并且我正在使用流畅的 nhibernate 中的自动映射。 当我尝试像这样保存 TransferOrder 时：
TransferOrder order = new TransferOrder();
order.Worker = new Worker(){WorkerID = 1};
Session.Save(order);
但在数据库中，TransferOrder 表中的workerID 为 NULL？？？ 但是当我向工作人员提供版本时，它会正常保存吗？
TransferOrder order = new TransferOrder();
order.Worker = new Worker(){WorkerID = 1,Version = 1};
Session.Save(order);
请注意，为工作程序提供的版本号并不重要，只要它不为 0 即可。 我在数据库中保存了一个工人，其工人 ID = 1。
我该如何处理这个问题？为什么我应该给worker一个版本？？？nhibernate是否确保worker被保存？为什么它应该这样做？
i have the following entities:
public class Worker
{
public int WorkerID {get;set;}
public string Name { get;set;}
public int version { get;set;}
}
public class TransferOrder
{
public int TransferOrderID { get;set;}
public Worker workerTobeTransfered{get;set;}
public int version { get;set;}
}
and i am using the Auto mapping, in fluent nhibernate.
when i try to save the TransferOrder like this:
TransferOrder order = new TransferOrder();
order.Worker = new Worker(){WorkerID = 1};
Session.Save(order);
but in database, the workerID in the TransferOrder table is NULL???
but when i give a version to the worker, it is saved as normal?
TransferOrder order = new TransferOrder();
order.Worker = new Worker(){WorkerID = 1,Version = 1};
Session.Save(order);
notice that it is not important what version number is given to the worker as long as it is not 0.
and i have a worker saved in the database with workerID = 1.
how can i handle this ? why should i give a version to the worker???is the nhibernate making sure that worker is saved?? and why it should do that ?
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也许这是这样的场景：
您的 Work.WorkerID 是工作表中的一个标识列，并且您无法在表中插入仅包含标识列条目的行。
但是，当您也为 Work.Version 提供值时，您就创建了一个有效的插入。
Maybe this is the scenerio:
Your Work.WorkerID is an identity column within your Work table and, you cannot insert a row into your table that consists of only an identity column entry.
But when you provide a value for Work.Version, as well, then you are creating a valid insert.
“版本”可能会自动映射到 NHibernate 属性以进行乐观并发检查。我会使用 Fluent NHibernate 生成映射 XML 以查看它使用的内容，因为我无法通过 Google 找到有关自动映射的默认设置的任何信息。
The "version" is probably going to be auto mapped to a NHibernate attribute for optimistic concurrency checking. I would use Fluent NHibernate to generate the mapping XML to see what it's using, as I can't find anything via Google about the default settings for auto mapped .