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我的域自动映射正在工作,但现在当我更新我的 NHibernate 堆栈时,我在会话工厂构建配置时遇到映射异常:

“无法弄清楚多对多属性‘Users’的另一面应该是什么。”

在多对多地图上引发异常

整个堆栈跟踪是这个:

在 FluentNHibernate.Cfg.FluentConfiguration.BuildConfiguration() in
c:\hornget.horn\orm\fluentnhibernate\Working-2.1\src\FluentNHibernate\Cfg\FluentConfiguration.cs:
WebApplication1.NHibernateManager.SessionFactoryManager.BuildConfiguration(AutoPersistenceModel persistenceModel
) 的第 119 行在
C:\WebProgramming\Projects\WebApplication1\WebApplication1\NHibernateManager\SessionFactoryManager.cs:第 116 行中的
WebApplication1.NHibernateManager.SessionFactoryManager.GetSessionFactory() 在
C:\WebProgramming\Projects\WebApplication1\WebApplication1\NHibernateManager\SessionFactoryManager.cs:第 71 行在
WebApplication1.NHibernateManager.SessionManager.CloseSession() 中
C:\WebProgramming\Projects\WebApplication1\WebApplication1\NHibernateManager\SessionManager.cs: C:\WebProgramming\Projects\WebApplication1\WebApplication1\Global.asax.cs中
WebApplication1.Global.Application_EndRequest(Object sender, EventArgs e) 的第 47 行: System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() 处的第 36
行 System.Web.HttpApplication.ExecuteStep(IExecutionStep 步骤,布尔值&完成同步)



问题是如何使用自动映射正确处理多对多关系。
注意:在我更新 NHibernate/FluentNHibernate 堆栈之前,映射正在工作......

相关定义粘贴如下:

域类(在 Dll 1 中):

public class User : Entity  
{  
// ... removed properties  

    public virtual IList<Role> Roles { get; protected set; }//has many  

// ...  removed methods   
}

public class Role : Entity
{
// ... removed properties  

    public virtual IList<User> Users { get; protected set; }//has many

// ... removed methods  
}

实体类(在 DLL 2 中):

/// <summary>
/// Base Entity deffinition
/// </summary>
public abstract class Entity : IEquatable<Entity>
{
    private int _Id = 0;
    public virtual int Id { get { return _Id; } }

    //... removed methods  
}

约定:

public class PrimaryKeyConvention : IIdConvention
{
    public void Apply(IIdentityInstance instance)
    {
        instance.Column(instance.EntityType.Name + "Id");
        instance.GeneratedBy.HiLo("100");
        instance.Access.ReadOnlyPropertyThroughPascalCaseField(PascalCasePrefix.Underscore);

    }
}


public class ClassConvention : IClassConvention
{
    public void Apply(IClassInstance instance)
    {
        instance.Table(Inflector.Pluralize(instance.EntityType.Name));
        instance.LazyLoad();
        instance.Cache.NonStrictReadWrite();
    }
}  

多对多约定:

public class ManyToManyConvention : IHasManyToManyConvention
{
    public void Apply(IManyToManyCollectionInstance instance)
    {
        if (instance.OtherSide == null)
        {
            instance.Table(
                string.Format(
                    "{0}To{1}",
                    Inflector.Pluralize(instance.EntityType.Name),
                    Inflector.Pluralize(instance.ChildType.Name)));
            instance.Cascade.AllDeleteOrphan();
        }
        else
        {
            instance.Inverse();
        }
    }

}

模型:

 var persistanceModel = AutoMap.AssemblyOf<DataModelPaceholder>()
        .AddEntityAssembly(typeof(Entity).Assembly)
        .Conventions.AddFromAssemblyOf<ClassConvention>()
        .UseOverridesFromAssemblyOf<DataModelPaceholder>()
        .Setup(s =>
        {
            s.SubclassStrategy = t => SubclassStrategy.JoinedSubclass;
            s.IsComponentType = type => type == typeof(MoneyComponent);
        })
        .IgnoreBase<Entity>()
        .IgnoreBase<EntityAudit>()
        //.IncludeBase<Product>()
        .Where
        (
            type => typeof(Entity).IsAssignableFrom(type) && !type.IsAbstract
        );
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1 回答 1

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您是否有一个名为 UsersToRoles 的联结表,其中包含根据 AutoMap 默认约定适当命名的列?例如 User_id,Role_id ?

于 2010-02-11T15:10:41.200 回答