Any word on support for mapping entities from multiple assemblies? I'd also appreciate feedback on the proposed solution above.
On Feb 12, 11:40 pm, Jimit <[email protected]> wrote: > Maybe we need a instance method on AutoPersistenceModel a la > IncludeEntitiesFromAssembly<T> so we could say: > > var model = > AutoPersistenceModel.MapEntitiesFromAssembly<T>.IncludeEntitiesFromAssembly > <T> > (... and so on).Where(GetEntityFilter)... > The first call to MapEntitiesFromAssembly<T> would do essentially what > it does now except that it'd save the assembly to an > ICollection<Assembly>. Subsequent calls to > IncludeEntitesFromAssembly<T> would add additional assemblies to that > collection (it'd be prudent to make sure the same assembly isn't added > twice). > Everything from that point on would be business as usual till it came > to CompileMappings in which case we could do something like.. > > var entitiesToMap = mappingAssemblies.SelectMany(asm => > asm.GetExportedTypes()).Where(t => shouldInclude(t) && ! > Conventions.IsBaseType(t)); > entitiesToMap.ForEach(entity => {varmapping= FindMapping(entity); if > (mapping!= null) MergeMapping(mapping) else AddMapping(mapping) > > (excuse the typos and syntax errors - running on mental compiler > again :-) ) > > The Where clause above would need to identify entities from all > included assemblies > What do you think? > > On Feb 12, 6:01 pm, James Gregory <[email protected]> wrote: > > > MapEntitiesFromAssembly<T> creates an instance of an AutoPersistenceModel, > > so you'd need to do something like this to use multiple assemblies: > > var autoMapper1 = AutoPersistenceModel.MapEntitiesFromAssembly<A>(); > > var autoMapper2 = AutoPersistenceModel.MapEntitiesFromAssembly<B>(); > > > The problem is, that would only map two separate class hierarchies, and not > > handle any mixing of the two. I don't think it's currently possible to map > > two assemblies as one logical domain. This is something that we should > > support though.On Thu, Feb 12, 2009 at 5:20 PM, Jimit > > <[email protected]> wrote: > > > > That unfortunately raises other issues for me - all my base classes > > > including DomainObject are in another assembly (Core.Common) than the > > > one that holds my domain model (Core.Domain). I don't suppose it's > > > possible to call MapEntitiesFromAssembly<T> more than once and filter > > > it with the same predicate in the Where method? I seem to remember > > > MapEntitiesFromAssembly<T> simply saving a reference to the assembly > > > for use later in CompileMappings which would mean that calling it > > > twice would simply reset the reference. > > > What do you think? > > > > On Feb 12, 8:54 am, James Gregory <[email protected]> wrote: > > > > Yeah, that makes sense. Currently you shouldn't exclude something set > > > with > > > > IsBaseType in your Where clause. That being said, the two should > > > > probably > > > > be equivalent really. > > > > > On Thu, Feb 12, 2009 at 6:10 AM, Jimit <[email protected]> wrote: > > > > > > I think I may have found the problem. DomainObject was excluded by my > > > > > entity filter in my call to Where on the AutoPersistenceModel (since > > > > > it itself is not an entity, just a common base class for both entities > > > > > and value objects and thus it doesn't have an Id, I figured no need). > > > > > I subsequently did amappingoverride using > > > > > ForTypesThatDeriveFrom<DomainObject> which internally populates an > > > > > AutoMap<DomainObject>. In CompileMappings however the conditions that > > > > > would normally exclude DomainObject from the finalmapping(i.e the > > > > > checks for shouldInclude and IsBaseType) don't get called for > > > > > DomainObject since it was not in the original list of entities to map. > > > > > It's AutoMap<DomainObject> created by ForTypesThatDeriveFrom is meant > > > > > only to be used by MergeMapping to merge with automaps for classes > > > > > deriving from DomainObject and instead it went to AddMapping. As a > > > > > result it circumvents the checks and ends up getting mapped. Not > > > > > having an Id property, Nhibernate doesn't like that and hence the > > > > > exception. I haven't actually checked the call stacks to verify this > > > > > behaviour - it's all been mental compiler since the realization just > > > > > came to me. :) I'll check it out when I'm at work but it seems to be > > > > > pointing at a loophole in the CompileMapping logic. > > > > > > On Feb 10, 10:54 pm, Jimit <[email protected]> wrote: > > > > > > This is my test fixture. I configure FNH in the Setup: > > > > > > > [TestFixture] > > > > > > public class PersistenceTests > > > > > > { > > > > > > #region Setup/Teardown > > > > > > > [SetUp] > > > > > > public void SetUp() > > > > > > { > > > > > > _sessionFactory = Fluently.Configure() > > > > > > .Database(SQLiteConfiguration.Standard.InMemory) > > > > > > .Mappings(m => m.AutoMappings.Add(Mapper.Mappings)) > > > > > > .ExposeConfiguration(cfg => new SchemaExport > > > > > > (cfg).Create(true, true)) > > > > > > .BuildSessionFactory(); > > > > > > } > > > > > > > [TearDown] > > > > > > public void TearDown() > > > > > > { > > > > > > _sessionFactory = null; > > > > > > } > > > > > > > #endregion > > > > > > > private ISessionFactory _sessionFactory; > > > > > > > [Test] > > > > > > public void Can_Map_Orders_To_Database() > > > > > > { > > > > > > new PersistenceSpecification<Order> > > > > > > (_sessionFactory.OpenSession()) > > > > > > .CheckProperty(o => o.Reference, "Order Ref 1") > > > > > > .CheckProperty(o => o.PartsOrdered, 2) /* and so > > > > > > on...*/ > > > > > > .CheckProperty(o => o.PartsReceived, 1); > > > > > > } > > > > > > > } > > > > > > > Mapper.Mappings is where the AutoPersistenceModel is defined. Here > > > are > > > > > > the pertinent parts there: > > > > > > > public static class Mapper > > > > > > { > > > > > > public static AutoPersistenceModel Mappings > > > > > > { > > > > > > get > > > > > > { > > > > > > return _mappings ?? (_mappings = DefineMappings()); > > > > > > } > > > > > > } > > > > > > > private static AutoPersistenceModel DefineMappings() > > > > > > { > > > > > > return AutoPersistenceModel > > > > > > .MapEntitiesFromAssemblyOf<Order>() > > > > > > .Where(EntityFilter) > > > > > > .WithConvention(DefineConventions) > > > > > > .WithCustomMappingsFrom<CustomMappings>(); > > > > > > } > > > > > > > private static void DefineConventions > > > > > > (FluentNHibernate.Conventions conventions) > > > > > > { > > > > > > SetDefaultConventions(conventions); > > > > > > AddCustomConventions(conventions); > > > > > > } > > > > > > private static void SetDefaultConventions > > > > > > (FluentNHibernate.Conventions conventions) > > > > > > { > > > > > > conventions.GetPrimaryKeyName = property => > > > > > > property.Name > > > > > > + "Id"; > > > > > > conventions.GetPrimaryKeyNameFromType = type => > > > > > > type.Name > > > > > > + "Id"; > > > > > > conventions.GetVersionColumnName = property => > > > > > > "Version"; > > > > > > conventions.IsBaseType = type => > > > > > > type == typeof (object) || > > > > > > type == typeof (DomainObject) > > > > > > || > > > > > > (type.IsGenericType > > > > > > && > > > type.GetGenericTypeDefinition > > > > > > ().IsIn(new[] > > > > > > > { > > > > > > > typeof (EntityBase<,>), > > > > > > > typeof (EntityBase<>), > > > > > > > typeof (ProcessedEntity<,>), > > > > > > > typeof (ProcessedEntity<>), > > > > > > > typeof (AuditedEntity<,>), > > > > > > > typeof (AuditedEntity<>), > > > > > > > typeof (ProcessingEvent<>) > > > > > > })); > > > > > > //conventions.IsComponentType = t => t == > > > typeof(Address); > > > > > > conventions.OneToManyConvention = map => > > > > > > map.Cascade.SaveUpdate(); > > > > > > conventions.DefaultLazyLoad = true; > > > > > > conventions.GetForeignKeyNameOfParent = parent => > > > > > > parent.Name + "ID"; > > > > > > conventions.IdConvention = identity => identity > > > > > > .Access. > > > > > > > AsReadOnlyPropertyThroughPascalCaseField > > > > > > > (Prefix.Underscore) > > > > > > .GeneratedBy.Native > > > > > > () > > > > .TheColumnNameIs > > > > > > ("Id"); > > > > > > conventions.GetForeignKeyName = property => > > > > > > property.Name > > > > > > + "Id"; > > > > > > conventions.GetManyToManyTableName = > > > > > > (parent, child) => parent.Name + "_" + child.Name; > > > > > > conventions.DefaultCache = cache => cache.AsReadWrite(); > > > > > > conventions.GetParentSideForManyToMany = (type1, type2) > > > => > > > > > > { > > > > > > var > > > types > > > > > > = (new[] {type1, type2}) > > > > .OrderBy > > > > > > (t => t.Name); > > > > > > return > > > > > > types.Where( > > > > > > > t => typeof > > ... > > read more » --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Fluent NHibernate" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/fluent-nhibernate?hl=en -~----------~----~----~----~------~----~------~--~---
