[英]Graphdiff is removing entities
我有以下实体:
public class Profile
{
[Required]
public string Name { get; set; }
[Required]
public string Description { get; set; }
[Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)]
public int ID { get; set; }
public IList<Functionality> Functionalities { get; set; }
}
和
public class Functionality
{
[Required]
public string Name { get; set; }
[Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)]
public int ID { get; set; }
}
在我的服务方法中,当我尝试以下操作时,它会从数据库中删除不在Profile的Functionalities列表中的Functionality对象:
(...)
var databaseFunctionalities = this
.Repository
.GetByIds<Functionality>(profile
.Functionalities
.ToIdList());
profile.Functionalities.Clear();
profile.Functionalities.AddRange(databaseFunctionalities);
((BaseRepository)this.Repository)
.UpdateGraph(profile,map => map.OwnedCollection(p => p.Functionalities));
this.Repository.SaveChanges();
(...)
关于它的任何想法?
谢谢!
在阅读了andypelzer关于这篇文章中关联和拥有之间差异的解释之后找到了解决方案:
https://github.com/refactorthis/GraphDiff/issues/43
所以我改变了
((BaseRepository)this.Repository)
.UpdateGraph(profile,map => map.OwnedCollection(p => p.Functionalities));
this.Repository.SaveChanges();
至
((BaseRepository)this.Repository)
.UpdateGraph(profile,map => map.AssociatedCollection(p => p.Functionalities));
this.Repository.SaveChanges();
并且像一个魅力!
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.