1

所以我需要制作对象的副本。我在这里有一个模型“地方”,它有一个痛苦的 IList HasAndBelongsToMany 属性。我需要获取字段属性并复制它,但它仅复制参考。这是我所拥有的

public class place : ActiveRecordBase<place>
{
    public place() {  }

    private int place_id;
    [PrimaryKey("place_id")]
    virtual public int id
    {
        get { return place_id; }
        set { place_id = value; }
    }
    private IList<fields> Fields;
    [HasAndBelongsToMany(typeof(fields), Lazy = true, Table = "place_to_fields", ColumnKey = "place_id", ColumnRef = "field_id", NotFoundBehaviour = NotFoundBehaviour.Ignore, Cascade = ManyRelationCascadeEnum.AllDeleteOrphan)]
    virtual public IList<fields> field
    {
        get { return Fields; }
        set { Fields = value; }
    }
}

并像这样使用自动映射器

place org = ActiveRecordBase<place>.Find(id);

Mapper.Reset();
Mapper.CreateMap<place, place>().ForMember(dest => dest.id, o => o.Ignore())
                                .ForMember(dest => dest.field, o => o.Ignore())
                                ; 
place copy = new place();
Mapper.Map(org, copy);

copy.SaveAndFlush();

哪个有效,因为我正在跳过该领域。我所希望的更像是:

Mapper.CreateMap<place, place>().ForMember(dest => dest.id, o => o.Ignore())
                                .ForMember(dest => dest.field.id, o => o.Ignore())
                                ; 

请参阅 .ForMember(dest => dest.id, o => o.Ignore()) 的第一行,这样我就不会复制地点对象的参考 ID。我需要对 place 属性字段执行相同的操作。我需要忽略 id 并在其其余属性上创建具有相同值的新条目

4

1 回答 1

0

您需要为字段类型创建映射并为字段的 id 添加“忽略”选项,就像您已经为地点类型所做的那样。

Mapper.CreateMap<fields, fields>().ForMember(dest => dest.id, o => o.Ignore());
Mapper.CreateMap<place, place>().ForMember(dest => dest.id, o => o.Ignore());
于 2012-08-10T03:15:50.010 回答