Castle ActiveRecord HasMany屬性

我正在使用Castle ActiveRecord重組我們的數據庫訪問權限。我已經通過博客/後期示例來了解事情的完成情況，但是我有一個關於HasMany屬性的基本問題。請看下面的例子：Castle ActiveRecord HasMany屬性

班級博客：

[ActiveRecord] 
public class Blog : ActiveRecordBase 
{ 
    private int id; 
    private IList posts = new ArrayList(); 

    public Blog() 
    { 
    } 

    [PrimaryKey] 
    public int Id 
    { 
     get { return id; } 
     set { id = value; } 
    } 

    [HasMany(typeof(Post), Table="Posts", ColumnKey="blogid", 
     Inverse=true, Cascade=ManyRelationCascadeEnum.AllDeleteOrphan)] 
    public IList Posts 
    { 
     get { return posts; } 
     set { posts = value; } 
    } 
}

類崗位：

[ActiveRecord] 
public class Post : ActiveRecordBase 
{ 
    private int id; 
    private String contents; 
    private Blog blog; 

    public Post() 
    { 
    } 

    [PrimaryKey] 
    public int Id 
    { 
     get { return id; } 
     set { id = value; } 
    } 

    [Property(ColumnType="StringClob")] 
    public String Contents 
    { 
     get { return contents; } 
     set { contents = value; } 
    } 

    [BelongsTo("blogid")] 
    public Blog Blog 
    { 
     get { return blog; } 
     set { blog = value; } 
    } 
}

現在當我創建一個博客，並添加一些職位，以這個博客，爲什麼是Blog.Posts集合不會自動更新？這是代碼：

using (new SessionScope()) 
{ 
    Blog b = new Blog(); 
    b.Save(); 

    Post p = new Post(); 
    p.Blog = b; 
    p.Save(); 

    //Here, b.Posts is empty, but shouldn't it contain a reference to p? 
}

可以做些什麼來防止這種行爲？我必須手動將帖子添加到收藏夾嗎？這裏有什麼最佳實踐？

TIA

來源

2011-05-13 Ralf

您應該將後只需添加到

using (new SessionScope()) 
{ 
    Blog b = new Blog(); 

    Post p = new Post(); 
    p.Blog = b; 

    b.Posts.Add(p); 

    b.Save(); 
}

的帖子收集不，除非你從數據庫刷新你的博客的對象不會被自動更新，您的博客對象的帖子財產。

來源

2011-05-13 12:00:12 mathieu

Castle ActiveRecord HasMany屬性

回答

相關問題