Question

我尝试在Active Record中创建多对一对多的关系。

[ActiveRecord("Users")]
public class User : ActiveRecordBase<User>
{
    private IList<PhotoAlbum> _albums = new List<PhotoAlbum>();

    [PrimaryKey]
    public virtual int UserId { get; set; }

    [BelongsTo("ProfilId")]
    public virtual Profil Profil { get; set; }

    [HasMany(Inverse = false,Cascade = ManyRelationCascadeEnum.Delete)]
    public IList<PhotoAlbum> Album
    {
        get { return _albums; }
        set { _albums = value; }
    }

    [Property]
    public virtual string Nick { get; set; }

}

[ActiveRecord("Profiles")]
public class Profil : ActiveRecordBase<Profil>
{
    [PrimaryKey]
    public int ProfilId { get; set; }

    [Property]
    public int Age { get; set; }
    [Property]
    public int Sex { get; set; }
    [Property]
    public string Region { get; set; }
    [Property]
    public string Town { get; set; }
    [Property]
    public bool WithPhoto { get; set; }
    [Property]
    public bool HasPhotoAlbum { get; set; }
}

[ActiveRecord("PhotoAlbums")]
public class PhotoAlbum : ActiveRecordBase<PhotoAlbum>
{
    [PrimaryKey]
    public int PhotoAlbumId { get; set; }

    [Property]
    public string Name { get; set; }
    [Property]
    public int NumberOfPhoto { get; set; }
}

我正在使用http://www.castleproject.org/activerecord/gettingstarted/relations.html

中的示例

它完成了这个错误：

ActiveRecord尝试推断有关User.Album关系的详细信息它无法在目标类型中找到'BelongsTo'映射属性

StrackTrace：

在   Castle.ActiveRecord.Framework.Internal.SemanticVerifierVisitor.VisitHasMany（HasManyModel   模特）   Castle.ActiveRecord.Framework.Internal.HasManyModel.Accept（IVisitor   访客）   Castle.ActiveRecord.Framework.Internal.AbstractDepthFirstVisitor.VisitNode（IVisitable   可访问的）   Castle.ActiveRecord.Framework.Internal.AbstractDepthFirstVisitor.VisitNodes（IEnumerable的   节点）   Castle.ActiveRecord.Framework.Internal.AbstractDepthFirstVisitor.VisitModel（ActiveRecordModel   模特）   Castle.ActiveRecord.Framework.Internal.SemanticVerifierVisitor.VisitModel（ActiveRecordModel   模特）   Castle.ActiveRecord.Framework.Internal.ActiveRecordModel.Accept（IVisitor   访客）   Castle.ActiveRecord.Framework.Internal.AbstractDepthFirstVisitor.VisitNode（IVisitable   可访问的）   Castle.ActiveRecord.Framework.Internal.AbstractDepthFirstVisitor.VisitNodes（IEnumerable的   节点）   Castle.ActiveRecord.ActiveRecordStarter.RegisterTypes（ISessionFactoryHolder   holder，IConfigurationSource source，IEnumerable`1 types，Boolean   ignoreProblematicTypes）at   Castle.ActiveRecord.ActiveRecordStarter.Initialize（IConfigurationSource   源，类型[]类型）在SAMPLE_1.Program.Main（String [] args）中   E：\ C＃PROJECTS \ STUDY \ STUDY.ORM \ Active Record


SAMPLE_1.PhotoAlbum

我认为问题在于：

    [HasMany(Inverse = false,Cascade = ManyRelationCascadeEnum.Delete)]
    public IList<PhotoAlbum> Album
    {
        get { return _albums; }
        set { _albums = value; }
    }

如果我省略了这个属性/关系，它就可以了。

Answer 1

假设一个个人资料有很多相册，那么您的PhotoAlbum课程缺少一个属性：

[BelongsTo("ProfileId")]
public Profile Profile { get; set; }

城堡活动记录 - 一对多的关系

1 个答案: