Orchard CMS: ContentPart not added to ContentItem in migration

Question

I am trying to build a module with the following in a migration:

    public class XyzzyPartRecord : ContentPartRecord
    {
        public virtual string Plugh { get; set; }
    }

    public class XyzzyPart : ContentPart<XyzzyPartRecord>
    {
        public string Plugh {
            get { return Retrieve( r => r.Plugh ); }
            set { Store( r => r.Plugh, value ); }
        }
    }

    public int Create() {

        SchemaBuilder.CreateTable( "XyzzyPartRecord", table => table
            .ContentPartRecord()
            .Column<string>( "Plugh" )
        );

        ContentDefinitionManager.AlterPartDefinition( "XyzzyPart", cfg => cfg
            .WithDescription( "XyzzyPart" ) );

        ContentDefinitionManager.AlterTypeDefinition( "XyzzyItem", cfg => cfg
            .WithPart( "XyzzyPart" )
        );

        return 1;
    }

When accessing an XyzzyItem, there is no XyzzyPart in the Parts collection. Instead there is a ContentPart.

How do I get my Content Part to allow it to be added to a Content Item's Parts collection?

Answer 1

I had neglected to create either a Driver or a Handler for my part. Once those were in place my code worked as expected.

namespace MyProject.Drivers {

    public class XyzzyPartDriver : ContentPartDriver<XyzzyPart> {

        protected override DriverResult Display( XyzzyPart part, string displayType, dynamic shapeHelper ) {
            return ContentShape( "Parts_Xyzzy",
                () => shapeHelper.Parts_Xyzzy(
                    Xyzzy: part ) );
        }
    }
}

namespace MyProject.Handlers {

    public class XyzzyPartHandler : ContentHandler {

        public XyzzyPartHandler( IRepository<XyzzyPartRecord> repository ) {
            Filters.Add( StorageFilter.For( repository ) );
        }
    }
}