Question

我有一个对象OtherFaclilityEntity，它包含一个ILF的OtherFcs对象，映射如下：

    public OtherFacilityMap()
    {
        Schema("SOME");
        Table("OTHER_FACILITY");

        Id(x => x.Id, "OTHER_FACILITY_S").GeneratedBy.TriggerIdentity();
        Map(x => x.RowCreator, "ROW_CREATOR");
        Map(x => x.RowCreateDate, "ROW_CREATE_DATE");
        Map(x => x.Description, "DESCRIPTION");
        Map(x => x.ExistenceKdNm, "R_EXISTENCE_KD_NM");

        References(x => x.FacilityClassItem, "FACILITY_CLASS_S").LazyLoad(Laziness.False).Fetch.Join().Not.Insert().Not.Update();
        HasMany(x => x.FacilityCmList).KeyColumn("WHOLE_S").Fetch.Subselect().Not.LazyLoad();

    }

当我尝试在OtherFacility实体上执行SaveOrUpdate时，它还会更新FacilityCmList中的所有实体，这很好，但是在最后运行的sql中尝试删除父对象和子对象之间的所有关系：

NHibernate.SQL: 2011-07-19 10:29:33,111 [361] DEBUG NHibernate.SQL [(null)] - UPDATE SOME.FACILITY_CMS SET WHOLE_S = null WHERE WHOLE_S = :p0;:p0 = '26021842'

我认为它与我的绘图有关，有什么想法吗？

Answer 1

阅读NHibernate sets Foreign Key in secondary update rather than on initial insert violating Not-Null Constrain on key column后，我发现我需要将Inverse添加到HasMany关系中。

HasMany(x => x.FacilityCmList).KeyColumn("WHOLE_S").Fetch.Subselect().Inverse().Not.LazyLoad();

NHibernate更流畅的更新问题（一对多关系）

1 个答案: