Updated to support Album and Track level Compilations

src/NzbDrone.Core/Datastore/Migration/111_setup_music.cs

@@ -31,6 +31,8 @@ namespace NzbDrone.Core.Datastore.Migration
 
             Create.TableForModel("Albums")
                 .WithColumn("AlbumId").AsInt32() // Does this map to collectionId?
+                .WithColumn("CompilationId").AsInt32()
+                .WithColumn("Compilation").AsBoolean()
                 .WithColumn("Title").AsString()
                 .WithColumn("Year").AsInt32()
                 .WithColumn("Image").AsInt32() // Is this needed?
@@ -41,6 +43,8 @@ namespace NzbDrone.Core.Datastore.Migration
             Create.TableForModel("Tracks")
                 .WithColumn("ItunesTrackId").AsInt32().Unique()
                 .WithColumn("AlbumId").AsInt32()
+                .WithColumn("CompilationId").AsInt32().Nullable()
+                .WithColumn("Compilation").AsBoolean().WithDefaultValue("False")
                 .WithColumn("TrackNumber").AsInt32()
                 .WithColumn("Title").AsString().Nullable()
                 .WithColumn("Ignored").AsBoolean().Nullable()
@@ -61,6 +65,10 @@ namespace NzbDrone.Core.Datastore.Migration
                   .WithColumn("Size").AsInt64()
                   .WithColumn("DateAdded").AsDateTime()
                   .WithColumn("AlbumId").AsInt32(); // How does this impact stand alone tracks?
+
+            Create.TableForModel("Compilation")
+                   .WithColumn("CompilationId").AsInt32().Unique()
+                   .WithColumn("ArtistId").AsString().Nullable();
         }
 
     }

src/NzbDrone.Core/Datastore/TableMapping.cs

@@ -112,6 +112,9 @@ namespace NzbDrone.Core.Datastore
                   .Relationship()
                   .HasOne(track => track.TrackFile, track => track.TrackFileId);
 
+            Mapper.Entity<Compilation>().RegisterModel("Compilation")
+                   .Relationships.AutoMapICollectionOrComplexProperties(); //TODO: Figure out how to map this Table
+
             Mapper.Entity<QualityDefinition>().RegisterModel("QualityDefinitions")
                   .Ignore(d => d.Weight);
 

src/NzbDrone.Core/Music/Compilation.cs

@@ -0,0 +1,19 @@
+using NzbDrone.Core.Datastore;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace NzbDrone.Core.Music
+{
+    public class Compilation : ModelBase
+    {
+        public Compilation()
+        {
+
+        }
+
+        public int CompilationId { get; set; }
+        public LazyList<Artist> Artists { get; set; }
+    }
+}

src/NzbDrone.Core/Music/Track.cs

@@ -19,6 +19,8 @@ namespace NzbDrone.Core.Music
 
         public int ItunesTrackId { get; set; }
         public int AlbumId { get; set; }
+        public int CompilationId { get; set; }
+        public bool Compilation { get; set; }
         public int TrackNumber { get; set; }
         public string Title { get; set; }
         public bool Ignored { get; set; }