Subsonic 亚音速简单存储库一对多
我上了一节课,比如:Subsonic 亚音速简单存储库一对多,subsonic,subsonic3,one-to-many,simplerepository,Subsonic,Subsonic3,One To Many,Simplerepository,我上了一节课,比如: public class Video { public Guid VideoID { get; set; } public VideoCategory VideoCategory { get; set; } public int SortIndex { get; set; } public string Title { get; set; } public string Body { get; set; } public st
public class Video
{
public Guid VideoID { get; set; }
public VideoCategory VideoCategory { get; set; }
public int SortIndex { get; set; }
public string Title { get; set; }
public string Body { get; set; }
public string Author { get; set; }
public string Filename { get; set; }
public new void Add()
{
this.VideoID = Guid.NewGuid();
DB.Repository.Add(this);
}
}
还有一个
public class VideoCategory
{
public Guid VideoCategoryID { get; set; }
public string Title { get; set; }
public new void Add()
{
this.VideoCategoryID = Guid.NewGuid();
DB.Repository.Add(this);
}
}
然后我得到了如下代码:
VideoCategory VideoCategory = new VideoCategory();
VideoCategory.Title = "TestTitle";
VideoCategory.Add();
Video Video = new Video();
Video.VideoCategory = VideoCategory;
Video.SortIndex = 1;
Video.Title = "TestTitle";
Video.Body = "TestBody";
Video.Author = "TestAuthor";
Video.Filename = "TestFile.flv";
Video.Add();
它没有将视频分类保存到我的数据库中,所以很明显我遗漏了一些东西。要保存一对多关系,还需要做些什么?您不会错过任何东西。Simplerepository不支持开箱即用的一对多 这里有一个有用的链接,展示了如何在SimpleRepository中自己管理外键- 我自己也没有试过,但看起来它确实会起作用 Fluent Nhibernate将自动为您进行外键管理,但要复杂得多
PS如果这有帮助,请投票表决。您可能只需执行以下操作,您可能希望整理它,但这将确保填充外键值:
public class Video
{
protected VideoCategory videoCategory;
public Guid ID { get; set; }
public VideoCategory VideoCategory
{
get { return videoCategory; }
set
{
videoCategory = value;
VideoCategoryId = value.ID;
}
}
public Guid VideoCategoryId { get; set; }
public int SortIndex { get; set; }
public string Title { get; set; }
public string Body { get; set; }
public string Author { get; set; }
public string Filename { get; set; }
}
public class VideoCategory
{
public Guid ID { get; set; }
public string Title { get; set; }
}
SimpleRepository repo = new SimpleRepository(SimpleRepositoryOptions.RunMigrations);
VideoCategory videoCategory = new VideoCategory();
videoCategory.ID = Guid.NewGuid();
videoCategory.Title = "TestTitle";
repo.Add<VideoCategory>(videoCategory);
Video video = new Video();
video.ID = Guid.NewGuid();
video.VideoCategory = videoCategory;
video.SortIndex = 1;
video.Title = "TestTitle";
video.Body = "TestBody";
video.Author = "TestAuthor";
video.Filename = "TestFile.flv";
repo.Add<Video>(video);
对于如何亲自实施,您有什么想法我猜在保存之前将添加/更新更改为设置ID?这是真的,但是有几个非常误导的答案,这意味着其他的。看看我的问题,看看这个坏建议的例子。汤姆:我绝对喜欢亚音速,它的易用性,我渴望在一个新项目中使用simplerepository;不幸的是,我遇到了这个问题,这使我成为了破坏者。迫不及待地想看到从我的代码中推断出关系模式!是的,亚音速的简单性和可用性非常好。我相信它最终会支持一对多的开箱即用,但现在还不行,唉。