如何使用 FluentNHibernate 映射 NHibernate 自定义集合？

发布于 2024-09-08 03:54:32 字数 969 浏览 4 评论 0原文

我试图绘制两天的集合图但没有成功。我还阅读了所有可能的文章和论坛，但仍然在那里。好的，问题来了：

1）集合类包含一个私有字段“_internalCollection”，它与 NHib 映射。

2) 持有实体应通过只读属性公开集合。

3）我想避免实现NHibernate接口IUserCollectionType！！！

我用 xml 映射做到了这一点，效果很好。 WarehouseEntity 是一个集合 Item。 Warehouses 是 OrgEntity 类中的只读属性。

  <component name="Warehouses" class="Core.Domain.Collections.EntitySet`1[Core.Domain.OrgStructure.IWarehouseEntity,Core],Core">
    <set name="_internalCollection" table="`WAREHOUSE`" cascade="save-update" access="field" generic="true" lazy="true" >
      <key column="`WarehouseOrgId`" foreign-key="FK_OrgWarehouse" />
      <!--This is used to set the type of the collection items-->
      <one-to-many class="Domain.Model.OrgStructure.WarehouseEntity,Domain"/>
    </set>
  </component>

知道如何使用流畅的 NHibernate 来做到这一点吗？

编辑：Core.Domain.Collections.EntitySet`1 是基集合类。它提供了处理集合的基本功能，并且可以适合任何 IEntity 接口的类。

原文

I am trying to map the collection for two days without success. I also read all possible articles and forums but still down there. Ok, here is the problem:

1) The collection class contains a private field "_internalCollection" which is mapped with NHib.

2) The holding entity should expose the collection trough readonly property.

3) I want to avoid implementing NHibernate interface IUserCollectionType!!!

I did this with xml mapping and it work great. The WarehouseEntity is a collection Item. Warehouses is a readonly property in OrgEntity class.

  <component name="Warehouses" class="Core.Domain.Collections.EntitySet`1[Core.Domain.OrgStructure.IWarehouseEntity,Core],Core">
    <set name="_internalCollection" table="`WAREHOUSE`" cascade="save-update" access="field" generic="true" lazy="true" >
      <key column="`WarehouseOrgId`" foreign-key="FK_OrgWarehouse" />
      <!--This is used to set the type of the collection items-->
      <one-to-many class="Domain.Model.OrgStructure.WarehouseEntity,Domain"/>
    </set>
  </component>

Any idea how can I do it with fluent NHibernate?

EDIT: Core.Domain.Collections.EntitySet`1 is base collection class. It provides basic functionality for working with collections and can fit any class which is IEntity interface.

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行雁书 2024-09-15 03:54:32

尝试：

HasMany(x => x.Warehouses)
    .AsSet().KeyColumn("WarehouseOrgId")
    .Access.CamelCaseField(Prefix.Underscore)
    .ForeignKeyConstraintName("FK_OrgWarehouse");

编辑：我错过了问题的关键部分，所以这是另一个尝试：

Component(x => x.Warehouses, m =>
    {
        m.HasMany<Warehouse>(Reveal.Member<EntitySet<IWarehouseEntity>>("_internalCollection")
           .AsSet().KeyColumn("WarehouseOrgId")
           .ForeignKeyConstraintName("FK_OrgWarehouse");
    });

我确信不是这样，但希望它能让您走上正确的道路。还可以使用 ComponentMap 看看。

我的建议是完全避免自定义集合。我用 IEnumerable 上的扩展方法替换了我们的所有方法。

Try:

HasMany(x => x.Warehouses)
    .AsSet().KeyColumn("WarehouseOrgId")
    .Access.CamelCaseField(Prefix.Underscore)
    .ForeignKeyConstraintName("FK_OrgWarehouse");

Edit: I missed a key part of the question so here's another try:

Component(x => x.Warehouses, m =>
    {
        m.HasMany<Warehouse>(Reveal.Member<EntitySet<IWarehouseEntity>>("_internalCollection")
           .AsSet().KeyColumn("WarehouseOrgId")
           .ForeignKeyConstraintName("FK_OrgWarehouse");
    });

I'm sure that's not it but hopefully it puts you on the right path. Also have a look using ComponentMap.

My advice is to avoid custom collections entirely. I replaced all of ours with extension methods on IEnumerable<T>.

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