我有以下映射,但是当我删除状态实体时,Nhibernate会对子进行更新而不是删除。
public StatusMap()
{
Property(x => x.Date);
Property(x => x.Text, map => map.Type(NHibernateUtil.StringClob));
Property(x => x.Type);
ManyToOne(x => x.User, map => map.Column("UserId"));
Bag(x => x.Comments, map => { map.Key(km => km.Column("StatusId")); }, action => action.OneToMany());
Bag(x => x.Likes, map => { map.Key(km => km.Column("StatusId")); map.Cascade(Cascade.DeleteOrphans); }, action => action.OneToMany());
}
public StatusLikeMap()
{
ManyToOne(x => x.User, map => map.Column("UserId"));
ManyToOne(x => x.Status, map => { map.Column("StatusId"); });
Property(x => x.Date);
}
删除(状态)此SQL中的结果:
UPDATE
CommentStatus
SET
StatusId = null
WHERE
StatusId = @p0;
@p0 = ce350d55-e476-4874-9e95-341cad9342e2 [Type: Guid (0)]
UPDATE
StatusLike
SET
StatusId = null
WHERE
StatusId = @p0;
@p0 = ce350d55-e476-4874-9e95-341cad9342e2 [Type: Guid (0)]
DELETE
FROM
Status
WHERE
Id = @p0;
@p0 = ce350d55-e476-4874-9e95-341cad9342e2 [Type: Guid (0)]
任何想法?请帮帮我!
我在下面进行了更改并且排除有效,但这样就是触发删除命令的数据库。
如何让nhibernate执行delete而不是数据库?
Bag(p => p.Likes, map =>
{
map.Key(k =>
{
k.Column("StatusId");
k.OnDelete(OnDeleteAction.Cascade);
});
map.Cascade(Cascade.DeleteOrphans);
map.Inverse(true);
}, ce => ce.OneToMany());
答案 0 :(得分:1)
Cascade.DeleteOrphans只说孤儿被删除了。这并不意味着删除父级时也会删除子级。
您还需要级联“删除”或“全部”:
map.Cascade(Cascade.All | Cascade.DeleteOrphans)