Revert "Fix removal of FileInfo, BeatmapMetadata, BeatmapDifficulty objects"

osu.Game/Beatmaps/BeatmapDifficulty.cs

@@ -14,7 +14,6 @@ namespace osu.Game.Beatmaps
 
         [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
         public int ID { get; set; }
-        public int BeatmapInfoId { get; set; }
         public float DrainRate { get; set; } = DEFAULT_DIFFICULTY;
         public float CircleSize { get; set; } = DEFAULT_DIFFICULTY;
         public float OverallDifficulty { get; set; } = DEFAULT_DIFFICULTY;

osu.Game/Beatmaps/BeatmapMetadata.cs

@@ -15,7 +15,6 @@ namespace osu.Game.Beatmaps
 
         [NotMapped]
         public int? OnlineBeatmapSetID { get; set; }
-        public int BeatmapSetInfoId { get; set; }
 
         public string Title { get; set; }
         public string TitleUnicode { get; set; }

osu.Game/Beatmaps/BeatmapStore.cs

@@ -73,11 +73,6 @@ namespace osu.Game.Beatmaps
             if (beatmapSet.DeletePending) return false;
 
             beatmapSet.DeletePending = true;
-
-            // We can't use one to one relationship with its cascade delete because FileInfo can be used not only inside of BeatmapSetFileInfo
-            var files = beatmapSet.Files.Select(beatmapSetFileInfo => beatmapSetFileInfo.FileInfo);
-            Connection.FileInfo.RemoveRange(files);
-
             Connection.BeatmapSetInfo.Remove(beatmapSet);
             Connection.SaveChanges();
 

osu.Game/Migrations/20171014052545_Init.cs

@@ -10,18 +10,43 @@ namespace osu.Game.Migrations
         protected override void Up(MigrationBuilder migrationBuilder)
         {
             migrationBuilder.CreateTable(
-                name: "BeatmapSetInfo",
+                name: "BeatmapDifficulty",
                 columns: table => new
                 {
                     ID = table.Column<int>(type: "INTEGER", nullable: false)
                         .Annotation("Sqlite:Autoincrement", true),
-                    DeletePending = table.Column<bool>(type: "INTEGER", nullable: false),
+                    ApproachRate = table.Column<float>(type: "REAL", nullable: false),
-                    Hash = table.Column<string>(type: "TEXT", nullable: true),
+                    CircleSize = table.Column<float>(type: "REAL", nullable: false),
-                    Protected = table.Column<bool>(type: "INTEGER", nullable: false)
+                    DrainRate = table.Column<float>(type: "REAL", nullable: false),
+                    OverallDifficulty = table.Column<float>(type: "REAL", nullable: false),
+                    SliderMultiplier = table.Column<float>(type: "REAL", nullable: false),
+                    SliderTickRate = table.Column<float>(type: "REAL", nullable: false)
                 },
                 constraints: table =>
                 {
-                    table.PrimaryKey("PK_BeatmapSetInfo", x => x.ID);
+                    table.PrimaryKey("PK_BeatmapDifficulty", x => x.ID);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "BeatmapMetadata",
+                columns: table => new
+                {
+                    ID = table.Column<int>(type: "INTEGER", nullable: false)
+                        .Annotation("Sqlite:Autoincrement", true),
+                    Artist = table.Column<string>(type: "TEXT", nullable: true),
+                    ArtistUnicode = table.Column<string>(type: "TEXT", nullable: true),
+                    AudioFile = table.Column<string>(type: "TEXT", nullable: true),
+                    Author = table.Column<string>(type: "TEXT", nullable: true),
+                    BackgroundFile = table.Column<string>(type: "TEXT", nullable: true),
+                    PreviewTime = table.Column<int>(type: "INTEGER", nullable: false),
+                    Source = table.Column<string>(type: "TEXT", nullable: true),
+                    Tags = table.Column<string>(type: "TEXT", nullable: true),
+                    Title = table.Column<string>(type: "TEXT", nullable: true),
+                    TitleUnicode = table.Column<string>(type: "TEXT", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_BeatmapMetadata", x => x.ID);
                 });
 
             migrationBuilder.CreateTable(
@@ -70,32 +95,83 @@ namespace osu.Game.Migrations
                 });
 
             migrationBuilder.CreateTable(
-                name: "BeatmapMetadata",
+                name: "BeatmapSetInfo",
                 columns: table => new
                 {
                     ID = table.Column<int>(type: "INTEGER", nullable: false)
                         .Annotation("Sqlite:Autoincrement", true),
-                    Artist = table.Column<string>(type: "TEXT", nullable: true),
+                    DeletePending = table.Column<bool>(type: "INTEGER", nullable: false),
-                    ArtistUnicode = table.Column<string>(type: "TEXT", nullable: true),
+                    Hash = table.Column<string>(type: "TEXT", nullable: true),
-                    AudioFile = table.Column<string>(type: "TEXT", nullable: true),
+                    MetadataID = table.Column<int>(type: "INTEGER", nullable: true),
-                    Author = table.Column<string>(type: "TEXT", nullable: true),
+                    Protected = table.Column<bool>(type: "INTEGER", nullable: false)
-                    BackgroundFile = table.Column<string>(type: "TEXT", nullable: true),
-                    BeatmapSetInfoId = table.Column<int>(type: "INTEGER", nullable: false),
-                    PreviewTime = table.Column<int>(type: "INTEGER", nullable: false),
-                    Source = table.Column<string>(type: "TEXT", nullable: true),
-                    Tags = table.Column<string>(type: "TEXT", nullable: true),
-                    Title = table.Column<string>(type: "TEXT", nullable: true),
-                    TitleUnicode = table.Column<string>(type: "TEXT", nullable: true)
                 },
                 constraints: table =>
                 {
-                    table.PrimaryKey("PK_BeatmapMetadata", x => x.ID);
+                    table.PrimaryKey("PK_BeatmapSetInfo", x => x.ID);
                     table.ForeignKey(
-                        name: "FK_BeatmapMetadata_BeatmapSetInfo_BeatmapSetInfoId",
+                        name: "FK_BeatmapSetInfo_BeatmapMetadata_MetadataID",
-                        column: x => x.BeatmapSetInfoId,
+                        column: x => x.MetadataID,
+                        principalTable: "BeatmapMetadata",
+                        principalColumn: "ID",
+                        onDelete: ReferentialAction.Restrict);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "BeatmapInfo",
+                columns: table => new
+                {
+                    ID = table.Column<int>(type: "INTEGER", nullable: false)
+                        .Annotation("Sqlite:Autoincrement", true),
+                    AudioLeadIn = table.Column<int>(type: "INTEGER", nullable: false),
+                    BaseDifficultyID = table.Column<int>(type: "INTEGER", nullable: false),
+                    BeatDivisor = table.Column<int>(type: "INTEGER", nullable: false),
+                    BeatmapSetInfoID = table.Column<int>(type: "INTEGER", nullable: false),
+                    Countdown = table.Column<bool>(type: "INTEGER", nullable: false),
+                    DifficultyID = table.Column<int>(type: "INTEGER", nullable: false),
+                    DistanceSpacing = table.Column<double>(type: "REAL", nullable: false),
+                    GridSize = table.Column<int>(type: "INTEGER", nullable: false),
+                    Hash = table.Column<string>(type: "TEXT", nullable: true),
+                    Hidden = table.Column<bool>(type: "INTEGER", nullable: false),
+                    LetterboxInBreaks = table.Column<bool>(type: "INTEGER", nullable: false),
+                    MD5Hash = table.Column<string>(type: "TEXT", nullable: true),
+                    MetadataID = table.Column<int>(type: "INTEGER", nullable: true),
+                    Path = table.Column<string>(type: "TEXT", nullable: true),
+                    RulesetID = table.Column<int>(type: "INTEGER", nullable: false),
+                    SpecialStyle = table.Column<bool>(type: "INTEGER", nullable: false),
+                    StackLeniency = table.Column<float>(type: "REAL", nullable: false),
+                    StarDifficulty = table.Column<double>(type: "REAL", nullable: false),
+                    StoredBookmarks = table.Column<string>(type: "TEXT", nullable: true),
+                    TimelineZoom = table.Column<double>(type: "REAL", nullable: false),
+                    Version = table.Column<string>(type: "TEXT", nullable: true),
+                    WidescreenStoryboard = table.Column<bool>(type: "INTEGER", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_BeatmapInfo", x => x.ID);
+                    table.ForeignKey(
+                        name: "FK_BeatmapInfo_BeatmapSetInfo_BeatmapSetInfoID",
+                        column: x => x.BeatmapSetInfoID,
                         principalTable: "BeatmapSetInfo",
                         principalColumn: "ID",
                         onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_BeatmapInfo_BeatmapDifficulty_DifficultyID",
+                        column: x => x.DifficultyID,
+                        principalTable: "BeatmapDifficulty",
+                        principalColumn: "ID",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_BeatmapInfo_BeatmapMetadata_MetadataID",
+                        column: x => x.MetadataID,
+                        principalTable: "BeatmapMetadata",
+                        principalColumn: "ID",
+                        onDelete: ReferentialAction.Restrict);
+                    table.ForeignKey(
+                        name: "FK_BeatmapInfo_RulesetInfo_RulesetID",
+                        column: x => x.RulesetID,
+                        principalTable: "RulesetInfo",
+                        principalColumn: "ID",
+                        onDelete: ReferentialAction.Cascade);
                 });
 
             migrationBuilder.CreateTable(
@@ -125,93 +201,16 @@ namespace osu.Game.Migrations
                         onDelete: ReferentialAction.Cascade);
                 });
 
-            migrationBuilder.CreateTable(
-                name: "BeatmapInfo",
-                columns: table => new
-                {
-                    ID = table.Column<int>(type: "INTEGER", nullable: false)
-                        .Annotation("Sqlite:Autoincrement", true),
-                    AudioLeadIn = table.Column<int>(type: "INTEGER", nullable: false),
-                    BaseDifficultyID = table.Column<int>(type: "INTEGER", nullable: false),
-                    BeatDivisor = table.Column<int>(type: "INTEGER", nullable: false),
-                    BeatmapSetInfoID = table.Column<int>(type: "INTEGER", nullable: false),
-                    Countdown = table.Column<bool>(type: "INTEGER", nullable: false),
-                    DistanceSpacing = table.Column<double>(type: "REAL", nullable: false),
-                    GridSize = table.Column<int>(type: "INTEGER", nullable: false),
-                    Hash = table.Column<string>(type: "TEXT", nullable: true),
-                    Hidden = table.Column<bool>(type: "INTEGER", nullable: false),
-                    LetterboxInBreaks = table.Column<bool>(type: "INTEGER", nullable: false),
-                    MD5Hash = table.Column<string>(type: "TEXT", nullable: true),
-                    MetadataID = table.Column<int>(type: "INTEGER", nullable: true),
-                    Path = table.Column<string>(type: "TEXT", nullable: true),
-                    RulesetID = table.Column<int>(type: "INTEGER", nullable: false),
-                    SpecialStyle = table.Column<bool>(type: "INTEGER", nullable: false),
-                    StackLeniency = table.Column<float>(type: "REAL", nullable: false),
-                    StarDifficulty = table.Column<double>(type: "REAL", nullable: false),
-                    StoredBookmarks = table.Column<string>(type: "TEXT", nullable: true),
-                    TimelineZoom = table.Column<double>(type: "REAL", nullable: false),
-                    Version = table.Column<string>(type: "TEXT", nullable: true),
-                    WidescreenStoryboard = table.Column<bool>(type: "INTEGER", nullable: false)
-                },
-                constraints: table =>
-                {
-                    table.PrimaryKey("PK_BeatmapInfo", x => x.ID);
-                    table.ForeignKey(
-                        name: "FK_BeatmapInfo_BeatmapSetInfo_BeatmapSetInfoID",
-                        column: x => x.BeatmapSetInfoID,
-                        principalTable: "BeatmapSetInfo",
-                        principalColumn: "ID",
-                        onDelete: ReferentialAction.Cascade);
-                    table.ForeignKey(
-                        name: "FK_BeatmapInfo_BeatmapMetadata_MetadataID",
-                        column: x => x.MetadataID,
-                        principalTable: "BeatmapMetadata",
-                        principalColumn: "ID",
-                        onDelete: ReferentialAction.Restrict);
-                    table.ForeignKey(
-                        name: "FK_BeatmapInfo_RulesetInfo_RulesetID",
-                        column: x => x.RulesetID,
-                        principalTable: "RulesetInfo",
-                        principalColumn: "ID",
-                        onDelete: ReferentialAction.Cascade);
-                });
-
-            migrationBuilder.CreateTable(
-                name: "BeatmapDifficulty",
-                columns: table => new
-                {
-                    ID = table.Column<int>(type: "INTEGER", nullable: false)
-                        .Annotation("Sqlite:Autoincrement", true),
-                    ApproachRate = table.Column<float>(type: "REAL", nullable: false),
-                    BeatmapInfoId = table.Column<int>(type: "INTEGER", nullable: false),
-                    CircleSize = table.Column<float>(type: "REAL", nullable: false),
-                    DrainRate = table.Column<float>(type: "REAL", nullable: false),
-                    OverallDifficulty = table.Column<float>(type: "REAL", nullable: false),
-                    SliderMultiplier = table.Column<float>(type: "REAL", nullable: false),
-                    SliderTickRate = table.Column<float>(type: "REAL", nullable: false)
-                },
-                constraints: table =>
-                {
-                    table.PrimaryKey("PK_BeatmapDifficulty", x => x.ID);
-                    table.ForeignKey(
-                        name: "FK_BeatmapDifficulty_BeatmapInfo_BeatmapInfoId",
-                        column: x => x.BeatmapInfoId,
-                        principalTable: "BeatmapInfo",
-                        principalColumn: "ID",
-                        onDelete: ReferentialAction.Cascade);
-                });
-
-            migrationBuilder.CreateIndex(
-                name: "IX_BeatmapDifficulty_BeatmapInfoId",
-                table: "BeatmapDifficulty",
-                column: "BeatmapInfoId",
-                unique: true);
-
             migrationBuilder.CreateIndex(
                 name: "IX_BeatmapInfo_BeatmapSetInfoID",
                 table: "BeatmapInfo",
                 column: "BeatmapSetInfoID");
 
+            migrationBuilder.CreateIndex(
+                name: "IX_BeatmapInfo_DifficultyID",
+                table: "BeatmapInfo",
+                column: "DifficultyID");
+
             migrationBuilder.CreateIndex(
                 name: "IX_BeatmapInfo_MD5Hash",
                 table: "BeatmapInfo",
@@ -227,12 +226,6 @@ namespace osu.Game.Migrations
                 table: "BeatmapInfo",
                 column: "RulesetID");
 
-            migrationBuilder.CreateIndex(
-                name: "IX_BeatmapMetadata_BeatmapSetInfoId",
-                table: "BeatmapMetadata",
-                column: "BeatmapSetInfoId",
-                unique: true);
-
             migrationBuilder.CreateIndex(
                 name: "IX_BeatmapSetFileInfo_BeatmapSetInfoID",
                 table: "BeatmapSetFileInfo",
@@ -248,6 +241,11 @@ namespace osu.Game.Migrations
                 table: "BeatmapSetInfo",
                 column: "DeletePending");
 
+            migrationBuilder.CreateIndex(
+                name: "IX_BeatmapSetInfo_MetadataID",
+                table: "BeatmapSetInfo",
+                column: "MetadataID");
+
             migrationBuilder.CreateIndex(
                 name: "IX_FileInfo_Hash",
                 table: "FileInfo",
@@ -290,7 +288,7 @@ namespace osu.Game.Migrations
         protected override void Down(MigrationBuilder migrationBuilder)
         {
             migrationBuilder.DropTable(
-                name: "BeatmapDifficulty");
+                name: "BeatmapInfo");
 
             migrationBuilder.DropTable(
                 name: "BeatmapSetFileInfo");
@@ -299,19 +297,19 @@ namespace osu.Game.Migrations
                 name: "KeyBinding");
 
             migrationBuilder.DropTable(
-                name: "BeatmapInfo");
+                name: "BeatmapDifficulty");
-
-            migrationBuilder.DropTable(
-                name: "FileInfo");
-
-            migrationBuilder.DropTable(
-                name: "BeatmapMetadata");
 
             migrationBuilder.DropTable(
                 name: "RulesetInfo");
 
             migrationBuilder.DropTable(
                 name: "BeatmapSetInfo");
+
+            migrationBuilder.DropTable(
+                name: "FileInfo");
+
+            migrationBuilder.DropTable(
+                name: "BeatmapMetadata");
         }
     }
 }

osu.Game/Migrations/20171014052545_Init.designer.cs

@@ -1,4 +1,7 @@
-// <auto-generated />
+// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+// <auto-generated />
 using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Infrastructure;
 using Microsoft.EntityFrameworkCore.Metadata;
@@ -10,7 +13,7 @@ using System;
 namespace osu.Game.Migrations
 {
     [DbContext(typeof(OsuDbContext))]
-    [Migration("20171015101238_Init")]
+    [Migration("20171014052545_Init")]
     partial class Init
     {
         protected override void BuildTargetModel(ModelBuilder modelBuilder)
@@ -26,8 +29,6 @@ namespace osu.Game.Migrations
 
                     b.Property<float>("ApproachRate");
 
-                    b.Property<int>("BeatmapInfoId");
-
                     b.Property<float>("CircleSize");
 
                     b.Property<float>("DrainRate");
@@ -40,9 +41,6 @@ namespace osu.Game.Migrations
 
                     b.HasKey("ID");
 
-                    b.HasIndex("BeatmapInfoId")
-                        .IsUnique();
-
                     b.ToTable("BeatmapDifficulty");
                 });
 
@@ -61,6 +59,8 @@ namespace osu.Game.Migrations
 
                     b.Property<bool>("Countdown");
 
+                    b.Property<int>("DifficultyID");
+
                     b.Property<double>("DistanceSpacing");
 
                     b.Property<int>("GridSize");
@@ -97,6 +97,8 @@ namespace osu.Game.Migrations
 
                     b.HasIndex("BeatmapSetInfoID");
 
+                    b.HasIndex("DifficultyID");
+
                     b.HasIndex("MD5Hash");
 
                     b.HasIndex("MetadataID");
@@ -117,13 +119,10 @@ namespace osu.Game.Migrations
 
                     b.Property<string>("AudioFile");
 
-                    b.Property<string>("AuthorString")
+                    b.Property<string>("Author");
-                        .HasColumnName("Author");
 
                     b.Property<string>("BackgroundFile");
 
-                    b.Property<int>("BeatmapSetInfoId");
-
                     b.Property<int>("PreviewTime");
 
                     b.Property<string>("Source");
@@ -136,9 +135,6 @@ namespace osu.Game.Migrations
 
                     b.HasKey("ID");
 
-                    b.HasIndex("BeatmapSetInfoId")
-                        .IsUnique();
-
                     b.ToTable("BeatmapMetadata");
                 });
 
@@ -172,12 +168,16 @@ namespace osu.Game.Migrations
 
                     b.Property<string>("Hash");
 
+                    b.Property<int?>("MetadataID");
+
                     b.Property<bool>("Protected");
 
                     b.HasKey("ID");
 
                     b.HasIndex("DeletePending");
 
+                    b.HasIndex("MetadataID");
+
                     b.ToTable("BeatmapSetInfo");
                 });
 
@@ -248,14 +248,6 @@ namespace osu.Game.Migrations
                     b.ToTable("RulesetInfo");
                 });
 
-            modelBuilder.Entity("osu.Game.Beatmaps.BeatmapDifficulty", b =>
-                {
-                    b.HasOne("osu.Game.Beatmaps.BeatmapInfo")
-                        .WithOne("Difficulty")
-                        .HasForeignKey("osu.Game.Beatmaps.BeatmapDifficulty", "BeatmapInfoId")
-                        .OnDelete(DeleteBehavior.Cascade);
-                });
-
             modelBuilder.Entity("osu.Game.Beatmaps.BeatmapInfo", b =>
                 {
                     b.HasOne("osu.Game.Beatmaps.BeatmapSetInfo", "BeatmapSet")
@@ -263,6 +255,11 @@ namespace osu.Game.Migrations
                         .HasForeignKey("BeatmapSetInfoID")
                         .OnDelete(DeleteBehavior.Cascade);
 
+                    b.HasOne("osu.Game.Beatmaps.BeatmapDifficulty", "Difficulty")
+                        .WithMany()
+                        .HasForeignKey("DifficultyID")
+                        .OnDelete(DeleteBehavior.Cascade);
+
                     b.HasOne("osu.Game.Beatmaps.BeatmapMetadata", "Metadata")
                         .WithMany()
                         .HasForeignKey("MetadataID");
@@ -273,14 +270,6 @@ namespace osu.Game.Migrations
                         .OnDelete(DeleteBehavior.Cascade);
                 });
 
-            modelBuilder.Entity("osu.Game.Beatmaps.BeatmapMetadata", b =>
-                {
-                    b.HasOne("osu.Game.Beatmaps.BeatmapSetInfo")
-                        .WithOne("Metadata")
-                        .HasForeignKey("osu.Game.Beatmaps.BeatmapMetadata", "BeatmapSetInfoId")
-                        .OnDelete(DeleteBehavior.Cascade);
-                });
-
             modelBuilder.Entity("osu.Game.Beatmaps.BeatmapSetFileInfo", b =>
                 {
                     b.HasOne("osu.Game.Beatmaps.BeatmapSetInfo")
@@ -293,6 +282,13 @@ namespace osu.Game.Migrations
                         .HasForeignKey("FileInfoID")
                         .OnDelete(DeleteBehavior.Cascade);
                 });
+
+            modelBuilder.Entity("osu.Game.Beatmaps.BeatmapSetInfo", b =>
+                {
+                    b.HasOne("osu.Game.Beatmaps.BeatmapMetadata", "Metadata")
+                        .WithMany()
+                        .HasForeignKey("MetadataID");
+                });
 #pragma warning restore 612, 618
         }
     }

osu.Game/Migrations/OsuDbContextModelSnapshot.cs

@@ -1,4 +1,7 @@
-// <auto-generated />
+// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+// <auto-generated />
 using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Infrastructure;
 using osu.Game.Database;
@@ -21,8 +24,6 @@ namespace osu.Game.Migrations
 
                     b.Property<float>("ApproachRate");
 
-                    b.Property<int>("BeatmapInfoId");
-
                     b.Property<float>("CircleSize");
 
                     b.Property<float>("DrainRate");
@@ -35,9 +36,6 @@ namespace osu.Game.Migrations
 
                     b.HasKey("ID");
 
-                    b.HasIndex("BeatmapInfoId")
-                        .IsUnique();
-
                     b.ToTable("BeatmapDifficulty");
                 });
 
@@ -56,6 +54,8 @@ namespace osu.Game.Migrations
 
                     b.Property<bool>("Countdown");
 
+                    b.Property<int>("DifficultyID");
+
                     b.Property<double>("DistanceSpacing");
 
                     b.Property<int>("GridSize");
@@ -92,6 +92,8 @@ namespace osu.Game.Migrations
 
                     b.HasIndex("BeatmapSetInfoID");
 
+                    b.HasIndex("DifficultyID");
+
                     b.HasIndex("MD5Hash");
 
                     b.HasIndex("MetadataID");
@@ -112,13 +114,10 @@ namespace osu.Game.Migrations
 
                     b.Property<string>("AudioFile");
 
-                    b.Property<string>("AuthorString")
+                    b.Property<string>("Author");
-                        .HasColumnName("Author");
 
                     b.Property<string>("BackgroundFile");
 
-                    b.Property<int>("BeatmapSetInfoId");
-
                     b.Property<int>("PreviewTime");
 
                     b.Property<string>("Source");
@@ -131,9 +130,6 @@ namespace osu.Game.Migrations
 
                     b.HasKey("ID");
 
-                    b.HasIndex("BeatmapSetInfoId")
-                        .IsUnique();
-
                     b.ToTable("BeatmapMetadata");
                 });
 
@@ -167,12 +163,16 @@ namespace osu.Game.Migrations
 
                     b.Property<string>("Hash");
 
+                    b.Property<int?>("MetadataID");
+
                     b.Property<bool>("Protected");
 
                     b.HasKey("ID");
 
                     b.HasIndex("DeletePending");
 
+                    b.HasIndex("MetadataID");
+
                     b.ToTable("BeatmapSetInfo");
                 });
 
@@ -243,14 +243,6 @@ namespace osu.Game.Migrations
                     b.ToTable("RulesetInfo");
                 });
 
-            modelBuilder.Entity("osu.Game.Beatmaps.BeatmapDifficulty", b =>
-                {
-                    b.HasOne("osu.Game.Beatmaps.BeatmapInfo")
-                        .WithOne("Difficulty")
-                        .HasForeignKey("osu.Game.Beatmaps.BeatmapDifficulty", "BeatmapInfoId")
-                        .OnDelete(DeleteBehavior.Cascade);
-                });
-
             modelBuilder.Entity("osu.Game.Beatmaps.BeatmapInfo", b =>
                 {
                     b.HasOne("osu.Game.Beatmaps.BeatmapSetInfo", "BeatmapSet")
@@ -258,6 +250,11 @@ namespace osu.Game.Migrations
                         .HasForeignKey("BeatmapSetInfoID")
                         .OnDelete(DeleteBehavior.Cascade);
 
+                    b.HasOne("osu.Game.Beatmaps.BeatmapDifficulty", "Difficulty")
+                        .WithMany()
+                        .HasForeignKey("DifficultyID")
+                        .OnDelete(DeleteBehavior.Cascade);
+
                     b.HasOne("osu.Game.Beatmaps.BeatmapMetadata", "Metadata")
                         .WithMany()
                         .HasForeignKey("MetadataID");
@@ -268,14 +265,6 @@ namespace osu.Game.Migrations
                         .OnDelete(DeleteBehavior.Cascade);
                 });
 
-            modelBuilder.Entity("osu.Game.Beatmaps.BeatmapMetadata", b =>
-                {
-                    b.HasOne("osu.Game.Beatmaps.BeatmapSetInfo")
-                        .WithOne("Metadata")
-                        .HasForeignKey("osu.Game.Beatmaps.BeatmapMetadata", "BeatmapSetInfoId")
-                        .OnDelete(DeleteBehavior.Cascade);
-                });
-
             modelBuilder.Entity("osu.Game.Beatmaps.BeatmapSetFileInfo", b =>
                 {
                     b.HasOne("osu.Game.Beatmaps.BeatmapSetInfo")
@@ -288,6 +277,13 @@ namespace osu.Game.Migrations
                         .HasForeignKey("FileInfoID")
                         .OnDelete(DeleteBehavior.Cascade);
                 });
+
+            modelBuilder.Entity("osu.Game.Beatmaps.BeatmapSetInfo", b =>
+                {
+                    b.HasOne("osu.Game.Beatmaps.BeatmapMetadata", "Metadata")
+                        .WithMany()
+                        .HasForeignKey("MetadataID");
+                });
 #pragma warning restore 612, 618
         }
     }

osu.Game/osu.Game.csproj

@@ -23,7 +23,6 @@
     <TargetZone>LocalIntranet</TargetZone>
     <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
-    <GenerateBindingRedirectsOutputType>true</GenerateBindingRedirectsOutputType>
     <PublishUrl>publish\</PublishUrl>
     <Install>true</Install>
     <InstallFrom>Disk</InstallFrom>
@@ -279,9 +278,9 @@
     <Compile Include="Beatmaps\Drawables\BeatmapSetCover.cs" />
     <Compile Include="Beatmaps\Drawables\BeatmapSetHeader.cs" />
     <Compile Include="Database\IPopulate.cs" />
-    <Compile Include="Migrations\20171015101238_Init.cs" />
+    <Compile Include="Migrations\20171014052545_Init.cs" />
-    <Compile Include="Migrations\20171015101238_Init.designer.cs">
+    <Compile Include="Migrations\20171014052545_Init.designer.cs">
-      <DependentUpon>20171015101238_Init.cs</DependentUpon>
+      <DependentUpon>20171014052545_Init.cs</DependentUpon>
     </Compile>
     <Compile Include="Migrations\OsuDbContextModelSnapshot.cs" />
     <Compile Include="Online\API\Requests\GetBeatmapSetRequest.cs" />