使用Fluent Nhibernate将字典与基于实体的键映射 [英] Mapping Dictionary with entity based key using Fluent Nhibernate

问题描述

我有以下NHibernate HBM，它可以按预期工作，但是由于类可能会更改，并且使我想在FNH中进行映射，这使我的代码变得脆弱，但是我尝试了一下，但似乎无法正常工作，特别是如何获得多对多索引:

I have the following NHibernate HBM that works as expected, but it makes my code brittle as the classes may change and I want to do the mapping in FNH, but try as I might, I cannot seem to get it to work, especially how you get the index-many-to-many:

<map name="Permissions" table="PermissionsBySet" cascade="all">
  <key column="PermissionSet_id" />
  <index-many-to-many class="Picomole.ReadModel.Permission, Picomole.ReadModel" column="PermissionId" />
  <element column="PermissionType" type="Picomole.ReadModel.PermissionType, Picomole.ReadModel" not-null="true" />
</map>

给出以下类别:

public class PermissionSet : DomainObject
{
    public virtual PermissionSet Defaults { get; set; }

    public virtual IDictionary<Permission, PermissionType> Permissions { get; set; }
}

public class Permission : DomainObject
{
    public virtual string Controller { get; set; }

    public virtual string Action { get; set; }
}

public enum PermissionType
{
    None,
    Read,
    Write,
    Grant
}

推荐答案

感谢Firo向我指出正确的方向.我试图做的最后答案是:

Thanks Firo for point me in the right direction. The final answer for what I was attempting to do was:

HasManyToMany(x => x.Permissions)
                .AsEntityMap("PermissionId", "PermissionLevel")
                .Element("PermissionLevel", x => x.Type<PermissionLevel>())
                .Table("PermissionsBySet");

由于某些问题，我在关闭会话连接方面遇到了一个奇怪的错误，我不得不添加:

And because of some issues I was having with a strange error about the session connection being closed, I had to add:

                .Fetch.Join()
                .Not.LazyLoad()

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