An association from the table X refers to an unmapped class: System.Guid

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I have this class:

public class AttachmentLocation
{
    #region properties

    public virtual Guid UserId { get; set; }

    public virtual Guid LocationId { get; set; }

    public virtual long IndexInLocation { get; set; }

    #endregion

    #region contained foreign objects

    public virtual Attachment Attachment { get; set; }

    #endregion


    #region Methods need to override for CompositeId

    public override bool Equals(object obj)
    {
        if (obj == null)
            return false;
        var t = obj as AttachmentLocation;
        if (t == null)
            return false;
        if (UserId == t.UserId && LocationId == t.LocationId && Attachment.Id == t.Attachment.Id)
            return true;
        return false;
    }

    public override int GetHashCode()
    {
        return (UserId + "|" + LocationId + "|" + Attachment.Id).GetHashCode();
    }

    #endregion

}

I have this Fluent Mapping:

public class AttachmentLocaionMap : ClassMap<attachmentlocation>
{
    public AttachmentLocaionMap()
    {
        Table("Metadata_AttachmentLocation");
        CompositeId()
            .KeyReference(x => x.UserId, "UserId")
            .KeyReference(x => x.Attachment.Id, "AttachmentId")
            .KeyReference(x => x.LocationId, "LocationId");
        Map(x => x.IndexInLocation).Not.Nullable();
        Map(x => x.LocationId).Not.Nullable();

        HasOne(x => x.Attachment);
    }
}</attachmentlocation>

which I register:

SessionFactory = Fluently.Configure(configuration).Mappings(m =>
{
    m.FluentMappings.AddFromAssemblyOf<attachmentlocaionmap>();
    m.FluentMappings.AddFromAssemblyOf<frienddetailsmap>();
}).BuildSessionFactory();</frienddetailsmap></attachmentlocaionmap>

I get this runtime error:

> An association from the table Metadata_AttachmentLocation refers to an
> unmapped class: System.Guid
> 
> Description: An unhandled exception occurred during the execution of
> the current web request. Please review the stack trace for more
> information about the error and where it originated in the code. 
> 
> Exception Details: NHibernate.MappingException: An association from
> the table Metadata_AttachmentLocation refers to an unmapped class:
> System.Guid
> 
> Source Error: 
> 
> 
> Line 19:  Line 20:  Line 21:             SessionFactory =
> Fluently.Configure(configuration).Mappings(m => Line 22:             {
> Line 23:                
> m.FluentMappings.AddFromAssemblyOf<attachmentlocaionmap>();
> 
> Source File: C:\Users\elad\Documents\Visual Studio
> 2010\Projects\SVN\UGI\Ugi\Infrastructure\Dal\Adapters\NHibernateAdapter\NHibernateHelper.cs
> Line: 21 
> 
> Stack Trace: 
> 
> 
> [MappingException: An association from the table
> Metadata_AttachmentLocation refers to an unmapped class: System.Guid] 
> NHibernate.Cfg.Configuration.LogAndThrow(Exception exception) in
> d:\CSharp\NH\NH\nhibernate\src\NHibernate\Cfg\Configuration.cs:342   
> NHibernate.Cfg.Configuration.SecondPassCompileForeignKeys(Table table,
> ISet done) in
> d:\CSharp\NH\NH\nhibernate\src\NHibernate\Cfg\Configuration.cs:1169   
> NHibernate.Cfg.Configuration.SecondPassCompile() in
> d:\CSharp\NH\NH\nhibernate\src\NHibernate\Cfg\Configuration.cs:1120   
> NHibernate.Cfg.Configuration.BuildSessionFactory() in
> d:\CSharp\NH\NH\nhibernate\src\NHibernate\Cfg\Configuration.cs:1249   
> FluentNHibernate.Cfg.FluentConfiguration.BuildSessionFactory() in
> d:\Builds\FluentNH-v1.x-nh3\src\FluentNHibernate\Cfg\FluentConfiguration.cs:227
> 
> [FluentConfigurationException: An invalid or incomplete configuration
> was used while creating a SessionFactory. Check PotentialReasons
> collection, and InnerException for more detail.
> 
>   * Database was not configured through Database method. ]   
> FluentNHibernate.Cfg.FluentConfiguration.BuildSessionFactory() in
> d:\Builds\FluentNH-v1.x-nh3\src\FluentNHibernate\Cfg\FluentConfiguration.cs:232
> Ugi.Infrastructure.Dal.Adapters.NHibernateAdapter.NHibernateHelper.OpenSession()
> in C:\Users\elad\Documents\Visual Studio
> 2010\Projects\SVN\UGI\Ugi\Infrastructure\Dal\Adapters\NHibernateAdapter\NHibernateHelper.cs:21
> Ugi.Infrastructure.Dal.Adapters.NHibernateAdapter.NHibernateHelper.GetSession()
> in C:\Users\elad\Documents\Visual Studio
> 2010\Projects\SVN\UGI\Ugi\Infrastructure\Dal\Adapters\NHibernateAdapter\NHibernateHelper.cs:36
> Ugi.Infrastructure.Dal.Adapters.NHibernateAdapter.NHibernateDal`1..ctor()
> in C:\Users\elad\Documents\Visual Studio
> 2010\Projects\SVN\UGI\Ugi\Infrastructure\Dal\Adapters\NHibernateAdapter\NHibernateDal.cs:16
> Ugi.Infrastructure.Dal.Adapters.NHibernateAdapter.NHibernateDalFactory.GetDal()
> in C:\Users\elad\Documents\Visual Studio
> 2010\Projects\SVN\UGI\Ugi\Infrastructure\Dal\Adapters\NHibernateAdapter\NHibernateDalFactory.cs:17
> Ugi.Server.Sources.Logic.SourcesService..ctor() in
> C:\Users\elad\Documents\Visual Studio
> 2010\Projects\SVN\UGI\Ugi\Server\Sources\Logic\SourcesService.cs:36   
> BuildUp_Ugi.Server.Sources.Logic.SourcesService(IBuilderContext ) +153
> Microsoft.Practices.ObjectBuilder2.DynamicMethodBuildPlan.BuildUp(IBuilderContext
> context) in
> c:\EntLib\UnityTemp\Compile\Unity\Unity\Src\ObjectBuilder\Strategies\BuildPlan\DynamicMethod\DynamicMethodBuildPlan.cs:37
> Microsoft.Practices.ObjectBuilder2.BuildPlanStrategy.PreBuildUp(IBuilderContext
> context) in
> c:\EntLib\UnityTemp\Compile\Unity\Unity\Src\ObjectBuilder\Strategies\BuildPlan\BuildPlanStrategy.cs:43
> Microsoft.Practices.ObjectBuilder2.StrategyChain.ExecuteBuildUp(IBuilderContext
> context) in
> c:\EntLib\UnityTemp\Compile\Unity\Unity\Src\ObjectBuilder\Strategies\StrategyChain.cs:110
> Microsoft.Practices.Unity.UnityContainer.DoBuildUp(Type t, Object
> existing, String name, IEnumerable`1 resolverOverrides) in
> c:\EntLib\UnityTemp\Compile\Unity\Unity\Src\UnityContainer.cs:512
> 
> [ResolutionFailedException: Resolution of the dependency failed, type
> = "Ugi.Common.Model.Sources.ISourcesService", name = "(none)". Exception occurred while: Calling constructor
> Ugi.Server.Sources.Logic.SourcesService(). Exception is:
> FluentConfigurationException - An invalid or incomplete configuration
> was used while creating a SessionFactory. Check PotentialReasons
> collection, and InnerException for more detail.
> 
>   * Database was not configured through Database method.
</attachmentlocaionmap>

How can I fix that?

TIA

Posted 25-Nov-11 23:30pm

elad2109

Updated 25-Nov-11 23:36pm

Mehdi Gholam

v2

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Anjum.Rizwi · Answer 1 · 2014-09-24T22:52:00

I also have similar problem, I am very much new to this hibernate & fluent hibernate.

My table schema is like below

SQL

CREATE TABLE [dbo].[MyChildImmunisations](
	[Child_id] [int] NOT NULL,
	[Schedule_id] [int] NOT NULL,
	[Status] [int] NOT NULL,
 CONSTRAINT [PK_MyChildImmunisations] PRIMARY KEY CLUSTERED 
(
	[Child_id] ASC,
	[Schedule_id] ASC
))

My mapping class code like below.

C#

protected MyChildImmunisationMap(string tableName)
        {
            Table(tableName);

            CompositeId()
                .KeyReference(ci => ci.Child.Id, "Child_id")
                .KeyReference(ci => ci.Schedule.Id, "Schedule_Id");

            Map(ci => ci.Status).CustomType<childimmunisationstatus>();
        }</childimmunisationstatus>