Thanks for pointing that out. I misunderstood what MetaType was
referring to. The error is gone, but another problem appeared. I
tried to complete my simple test
var foo = new Foo();
foo.Journals.Add(new JournalBuilder().DoNotPersist().Build());
foo.Save();
var actual = Foo.Find(foo.Id);
Assert.That(actual.Journals, Has.Count(1));
foreach (var journal in actual.Journals)
{
Assert.That(journal.Journalable, Is.Not.Null);
}
The problem is that in the Journals table, the JournalableId is
populated with the PK of Foo, but the JournalableType is null. So,
when I check my association from Journal to Foo it is null. Ideas?
Again, thanks for the help Markus.
Jason
On Fri, Aug 7, 2009 at 7:32 AM, Markus Zywitza<[email protected]> wrote:
> Your meta-type is string ("Foo","Bar"), so you have to specify
> MetaType=typeof(string).
> see here:
> http://www.castleproject.org/activerecord/documentation/trunk/usersguide/relations/hasmanytoany.html
>
> -Markus
>
> 2009/8/6 jsmorris <[email protected]>
>>
>> Here are the hbm files that are generated when I include the [Any]
>> attribute on the Journal.Journalable property.
>>
>> On Wed, Aug 5, 2009 at 9:46 PM, Markus Zywitza<[email protected]>
>> wrote:
>> > Can you send in the generated hbm files? You'll have to specify
>> > debug="true"
>> > in your config for them to be written to disk.
>> >
>> > -Markus
>> >
>> > 2009/8/5 jsmorris <[email protected]>
>> >>
>> >> Thanks for your continued help Markus. I now understand what you are
>> >> saying about the HasMany side of this relationship and was able to
>> >> make it work! But, now the BelongsTo/Any side of the relationship is
>> >> throwing an error. I attempted to use this mapping on my Journal
>> >> object to reference which object this Journal belongs to (either Foo,
>> >> Bar, or any other IJournalable object).
>> >>
>> >> [Any(IdType = typeof(Int32), MetaType = typeof(IJournalable),
>> >> TypeColumn = "JournalableType", IdColumn = "JournalableId", Cascade =
>> >> CascadeEnum.SaveUpdate)]
>> >> [Any.MetaValue("Foo", typeof(Foo))]
>> >> [Any.MetaValue("Bar", typeof(Bar))]
>> >> public IJournalable Journalable { get; set; }
>> >>
>> >> But, got the below errors. I am not sure, even reading the inner
>> >> exception, that I know where to start looking.
>> >>
>> >> Jason
>> >>
>> >> System.NullReferenceException: Object reference not set to an instance
>> >> of an object.
>> >> at NHibernate.Cfg.XmlHbmBinding.ClassBinder.BindAny(XmlNode node, Any
>> >> model, Boolean isNullable)
>> >> at NHibernate.Cfg.XmlHbmBinding.ClassBinder.PropertiesFromXML(XmlNode
>> >> node, PersistentClass model, IDictionary`2 inheritedMetas, UniqueKey
>> >> uniqueKey, Boolean mutable, Boolean nullable, Boolean naturalId)
>> >> at NHibernate.Cfg.XmlHbmBinding.RootClassBinder.Bind(XmlNode node,
>> >> HbmClass classSchema, IDictionary`2 inheritedMetas)
>> >> at
>> >> NHibernate.Cfg.XmlHbmBinding.MappingRootBinder.AddRootClasses(XmlNode
>> >> parentNode, IDictionary`2 inheritedMetas)
>> >> at NHibernate.Cfg.XmlHbmBinding.MappingRootBinder.Bind(XmlNode node)
>> >> at NHibernate.Cfg.Configuration.AddValidatedDocument(NamedXmlDocument
>> >> doc)
>> >> NHibernate.MappingException: Could not compile the mapping document:
>> >> (string)
>> >> at NHibernate.Cfg.Configuration.LogAndThrow(Exception exception)
>> >> at NHibernate.Cfg.Configuration.AddValidatedDocument(NamedXmlDocument
>> >> doc)
>> >> at NHibernate.Cfg.Configuration.ProcessMappingsQueue()
>> >> at
>> >> NHibernate.Cfg.Configuration.AddDocumentThroughQueue(NamedXmlDocument
>> >> document)
>> >> at NHibernate.Cfg.Configuration.AddXmlReader(XmlReader hbmReader,
>> >> String
>> >> name)
>> >> at NHibernate.Cfg.Configuration.AddXml(String xml, String name)
>> >> at NHibernate.Cfg.Configuration.AddXmlString(String xml)
>> >> at Castle.ActiveRecord.ActiveRecordStarter.AddXmlString(Configuration
>> >> config, String xml, ActiveRecordModel model) in
>> >>
>> >>
>> >> c:\TeamCity\buildAgent\work\7e4107d1782544ec\ActiveRecord\Castle.ActiveRecord\Framework\ActiveRecordStarter.cs:
>> >> line 761
>> >> Castle.ActiveRecord.Framework.ActiveRecordException: Error adding
>> >> information from class Intel.TraX.Tests.Data.Store.Journal to
>> >> NHibernate. Check the inner exception for more information
>> >> at Castle.ActiveRecord.ActiveRecordStarter.AddXmlString(Configuration
>> >> config, String xml, ActiveRecordModel model) in
>> >>
>> >>
>> >> c:\TeamCity\buildAgent\work\7e4107d1782544ec\ActiveRecord\Castle.ActiveRecord\Framework\ActiveRecordStarter.cs:
>> >> line 765
>> >> at
>> >>
>> >> Castle.ActiveRecord.ActiveRecordStarter.AddXmlToNHibernateCfg(ISessionFactoryHolder
>> >> holder, ActiveRecordModelCollection models) in
>> >>
>> >>
>> >> c:\TeamCity\buildAgent\work\7e4107d1782544ec\ActiveRecord\Castle.ActiveRecord\Framework\ActiveRecordStarter.cs:
>> >> line 751
>> >> at
>> >>
>> >> Castle.ActiveRecord.ActiveRecordStarter.RegisterTypes(ISessionFactoryHolder
>> >> holder, IConfigurationSource source, IEnumerable`1 types, Boolean
>> >> ignoreProblematicTypes) in
>> >>
>> >>
>> >> c:\TeamCity\buildAgent\work\7e4107d1782544ec\ActiveRecord\Castle.ActiveRecord\Framework\ActiveRecordStarter.cs:
>> >> line 933
>> >> at
>> >> Castle.ActiveRecord.ActiveRecordStarter.Initialize(IConfigurationSource
>> >> source, Type[] types) in
>> >>
>> >>
>> >> c:\TeamCity\buildAgent\work\7e4107d1782544ec\ActiveRecord\Castle.ActiveRecord\Framework\ActiveRecordStarter.cs:
>> >> line 200
>> >> at Castle.ActiveRecord.ActiveRecordStarter.Initialize(Assembly[]
>> >> assemblies, IConfigurationSource source, Type[] additionalTypes) in
>> >>
>> >>
>> >> c:\TeamCity\buildAgent\work\7e4107d1782544ec\ActiveRecord\Castle.ActiveRecord\Framework\ActiveRecordStarter.cs:
>> >> line 223
>> >> at
>> >>
>> >> Castle.Facilities.ActiveRecordIntegration.ActiveRecordFacility.InitializeFramework(ArrayList
>> >> assemblies) in
>> >>
>> >> c:\TeamCity\buildAgent\work\7e4107d1782544ec\Facilities\ActiveRecordIntegration\Castle.Facilities.ActiveRecordIntegration\ActiveRecordFacility.cs:
>> >> line 147
>> >> at
>> >> Castle.Facilities.ActiveRecordIntegration.ActiveRecordFacility.Init()
>> >> in
>> >>
>> >> c:\TeamCity\buildAgent\work\7e4107d1782544ec\Facilities\ActiveRecordIntegration\Castle.Facilities.ActiveRecordIntegration\ActiveRecordFacility.cs:
>> >> line 107
>> >> at Castle.MicroKernel.Facilities.AbstractFacility.Init(IKernel kernel,
>> >> IConfiguration facilityConfig) in
>> >>
>> >>
>> >> c:\TeamCity\buildAgent\work\7e4107d1782544ec\InversionOfControl\Castle.MicroKernel\Facilities\AbstractFacility.cs:
>> >> line 69
>> >> at Castle.MicroKernel.DefaultKernel.AddFacility(String key, IFacility
>> >> facility) in
>> >>
>> >> c:\TeamCity\buildAgent\work\7e4107d1782544ec\InversionOfControl\Castle.MicroKernel\DefaultKernel.cs:
>> >> line 515
>> >> at Castle.Windsor.WindsorContainer.AddFacility(String key, IFacility
>> >> facility) in
>> >>
>> >> c:\TeamCity\buildAgent\work\7e4107d1782544ec\InversionOfControl\Castle.Windsor\WindsorContainer.cs:
>> >> line 261
>> >> at Intel.TraX.Web.IoCContainer.RegisterFacilities() in IoCContainer.cs:
>> >> line 57
>> >> at Intel.TraX.Web.IoCContainer..ctor(String configFileName) in
>> >> IoCContainer.cs: line 34
>> >> at Intel.TraX.Tests.BasePersistenceTestFixture.TestFixtureSetUp() in
>> >> BasePersistenceTestFixture.cs: line 37
>> >>
>> >>
>> >>
>> >> On Wed, Aug 5, 2009 at 10:18 AM, Markus
>> >> Zywitza<[email protected]>
>> >> wrote:
>> >> > Maybe I was unclear. BelongsTo won't help here, Any is the reight
>> >> > attribute.
>> >> > You have to specify
>> >> >
>> >> > HasMany(typeof(Journal), ColumnKey="...", Table="...")
>> >> >
>> >> > This should work.
>> >> > -Markus
>> >> > 2009/8/4 jsmorris <[email protected]>
>> >> >>
>> >> >> Moved from dev list...my apologies for asking my question on the
>> >> >> wrong
>> >> >> list.
>> >> >>
>> >> >> I now understand that I need the BelongsTo, but my problem is
>> >> >> constructing the correct BelongsTo in this situation. All my
>> >> >> attempts
>> >> >> have failed.
>> >> >>
>> >> >> So, my Journal class needs a BelongsTo to associate it to either a
>> >> >> Foo
>> >> >> or Bar, so if I define this
>> >> >>
>> >> >> [BelongsTo("JournalableId", Table = "Journals")]
>> >> >> public IJournalable Journalable { get; set; }
>> >> >>
>> >> >> I get the the error message. If I type the property to either of my
>> >> >> concrete types Foo or Bar, I do not get an error.
>> >> >>
>> >> >> [BelongsTo("JournalableId", Table = "Journals")]
>> >> >> public Foo Journalable { get; set; }
>> >> >>
>> >> >> or
>> >> >>
>> >> >> [BelongsTo("JournalableId", Table = "Journals")]
>> >> >> public Bar Journalable { get; set; }
>> >> >>
>> >> >> I feel that I need to be able to specify a type to the BelongsTo. I
>> >> >> was attempting to use the Any attribute to specify my metatype,
>> >> >> IJournalable, as well as the concrete types, Foo and Bar, for this
>> >> >> association. I believe that my Journals table would end up with
>> >> >> columns Id, JournalableId, JournalableType where JournalableType
>> >> >> would
>> >> >> be either Foo or Bar.
>> >> >>
>> >> >> Is this type of association even possible?
>> >> >>
>> >> >> Thanks,
>> >> >> Jason
>> >> >>
>> >> >>
>> >> >>
>> >> >> On Fri, Jul 31, 2009 at 7:34 PM, Markus
>> >> >> Zywitza<[email protected]>
>> >> >> wrote:
>> >> >> > Hint: It's already explained in the exception: If you don't have a
>> >> >> > BelongsTo
>> >> >> > (Any doesn't count), you need to specify ColumnKey and Table.
>> >> >> >
>> >> >> > -Markus
>> >> >> >
>> >> >> > 2009/7/31 jsmorris <[email protected]>
>> >> >> >>
>> >> >> >> I am having trouble setting up my AR relationships. I have tried
>> >> >> >> so
>> >> >> >> many things, but nothing seems to work. Here is what I am trying
>> >> >> >> to
>> >> >> >> do.
>> >> >> >>
>> >> >> >> Foo has many Journals. Bar has many Journals. A Journal can
>> >> >> >> belong
>> >> >> >> to
>> >> >> >> either Foo or Bar.
>> >> >> >>
>> >> >> >> If I try the mapping I have below, I get the following error
>> >> >> >>
>> >> >> >> Castle.ActiveRecord.Framework.ActiveRecordException: ActiveRecord
>> >> >> >> tried to infer details about the relation Bar.Journals but it
>> >> >> >> could
>> >> >> >> not find a 'BelongsTo' mapped property in the target type
>> >> >> >> Intel.TraX.Tests.Data.Store.Journal
>> >> >> >>
>> >> >> >> I am probably way off on what needs to be done, but I am looking
>> >> >> >> for
>> >> >> >> any help to point me in the right direction.
>> >> >> >>
>> >> >> >> Thanks,
>> >> >> >> Jason
>> >> >> >>
>> >> >> >> [ActiveRecord]
>> >> >> >> public class Journal : DomainObject<Journal>
>> >> >> >> {
>> >> >> >> [Any(typeof(Int32), MetaType = typeof(IJournalable),
>> >> >> >> TypeColumn = "JournalableType", IdColumn = "JournalableId",
>> >> >> >> Cascade
>> >> >> >> =
>> >> >> >> CascadeEnum.SaveUpdate)]
>> >> >> >> [Any.MetaValue("Foo", typeof(Foo))]
>> >> >> >> [Any.MetaValue("Bar", typeof(Bar))]
>> >> >> >> public IJournalable Journalable { get; set; }
>> >> >> >> }
>> >> >> >>
>> >> >> >> public interface IJournalable {}
>> >> >> >>
>> >> >> >> [ActiveRecord]
>> >> >> >> public class Foo : DomainObject<Foo>, IJournalable
>> >> >> >> {
>> >> >> >> [HasMany(ColumnKey = "JournalableId")]
>> >> >> >> public IList<Journal> Journals { get; set; }
>> >> >> >> }
>> >> >> >>
>> >> >> >> [ActiveRecord]
>> >> >> >> public class Bar : DomainObject<Bar>, IJournalable
>> >> >> >> {
>> >> >> >> [HasMany(ColumnKey = "JournalableId")]
>> >> >> >> public IList<Journal> Journals { get; set; }
>> >> >> >> }
>> >> >> >> }
>> >> >> >>
>> >> >> >>
>> >> >> >
>> >> >> >
>> >> >> > >
>> >> >> >
>> >> >> >>
>> >> >
>> >>
>> >>
>> >
>> >
>> > >
>> >
>>
>>
>
>
> >
>
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