表之间的Nhibernate映射 [英] Nhibernate mapping between tables

问题描述

大家好，

我有以下代码:

Hello everyone,

I have the following code:

public class Hotel
{
    public int ID
    {
     get;set
    }

    public IList<photo> Photos
    {
      get;set;
    }
//...other code
}

</photo>

和

and

public class Photo
{
  public int ID
    {
     get;set
    }
//...other fields
}

在数据库中，我有以下表格:

In the database, I have the following tables:

Photo: ID, Url, //.. other fields
HotelPhoto:ID, PhotoID, HotelID
Hotel:ID, Location, //..other fields

与酒店<->之间的关系HotelPhoto和HotelPhoto<->图片.

我的问题是:我可以在不创建新类HotelPhoto的情况下定义酒店和照片列表之间的映射吗? (我要的是照片列表，而不是要从中获取照片的HotelPhoto列表).

预先感谢，
Tamash

with relationships between Hotel <--> HotelPhoto and HotelPhoto <--> Photo.

My question is: can I define a mapping between Hotel and a list of Photo without creating a new class HotelPhoto? ( I want a list of photos, not a list of HotelPhoto from which to get my photos).

Thanks in advance,
Tamash

推荐答案

是的，很有可能.我对NHibernate不太熟悉；但可以使用相关的ORM(如LInQ等).通过将自己的Convert方法编写为
，可以实现自定义映射.

Yes, itz possible. I''m not much familiar with NHibernate; but with the related ORMs like LInQ, etc. The customized mapping is achievable by writing our own Convert methods as

public void List<photo> ConvertEntityHotelToPhoto(Hotel hotel)
{
    List<photo> retPhoto = new List<photo>();
    foreach(Photo photo in hotel.Photos)
    {
       retPhoto.Add(photo);
    }
    return retPhoto;
}</photo></photo></photo>

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