NHibernate 3.2 符合复合 id

发布于 2024-12-12 05:53:48 字数 583 浏览 1 评论 0原文

我正在升级到 NHibernate 3.2。我正在使用 Fluent NHibernate，但我没有看到 NH 3.2 的新版本。我正在考虑使用附带的 Conform 映射器，但它似乎不允许使用复合 id。我无法更改数据库，所以我有一个限制。

在 Fluent NHibernate 中，我有这个（名称仅作为示例更改）：

        Schema("MY_SCHEMA");
        Table("MY_TABLE");
        CompositeId()
            .KeyProperty(x => x.CompanyId, "COMPANY_ID")
            .KeyProperty(x => x.OrderId, "ORDER_ID")
            .KeyProperty(x => x.OrderDate, "ORDER_DATE")
            .KeyProperty(x => x.ProgramId, "PROGRAM_ID");

How will I do this with Conform in NH 3.2?

谢谢，保罗

原文

I am upgrading to NHibernate 3.2. I was using Fluent NHibernate but I don't see a new build for NH 3.2. I am looking at using the included Conform mapper but it does not appear to allow for a composite id. I can't change the database so I have a constraint.

In Fluent NHibernate I had this (names changed for example only):

        Schema("MY_SCHEMA");
        Table("MY_TABLE");
        CompositeId()
            .KeyProperty(x => x.CompanyId, "COMPANY_ID")
            .KeyProperty(x => x.OrderId, "ORDER_ID")
            .KeyProperty(x => x.OrderDate, "ORDER_DATE")
            .KeyProperty(x => x.ProgramId, "PROGRAM_ID");

How would I do this with Conform in NH 3.2?

Thanks,
Paul

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江城子 2024-12-19 05:53:48

您可以尝试：

mapper.Class<YourEntity>(m=>{
m.Table("MY_TABLE");
m.Schema("MY_SCHEMA");
m.ComposedId(cid=>
{
  cid.Property((e)=>e.CompanyId);
  cid.Property((e)=>e.OrderId);
   cid.Property((e)=>e.OrderDate);
//others...
});
});

而且，我只是猜测，因为我无法弄清楚您的数据库，您可能会将密钥的单个部分映射为多对一（即旧的密钥多对一）会写成 hbm ），为此，请使用 cid.ManyToOne() 而不是 cid.Property(..)；

You can try with:

mapper.Class<YourEntity>(m=>{
m.Table("MY_TABLE");
m.Schema("MY_SCHEMA");
m.ComposedId(cid=>
{
  cid.Property((e)=>e.CompanyId);
  cid.Property((e)=>e.OrderId);
   cid.Property((e)=>e.OrderDate);
//others...
});
});

And, I'm just guessing since I can't figura out your db, you would probably map the single portion of the key a many-to-one ( ie the old key-many-to-one you would write in hbm ), in order to do so, use cid.ManyToOne() instead of cid.Property(..);

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