FINALLY figure out the cascading delete issue

src/Tgstation.Server.Host/Database/DatabaseContext.cs

@@ -257,17 +257,25 @@ namespace Tgstation.Server.Host.Database
 
 			modelBuilder.Entity<InstanceUser>().HasIndex(x => new { x.UserId, x.InstanceId }).IsUnique();
 
-			modelBuilder.Entity<TestMerge>().HasMany(x => x.RevisonInformations).WithOne(x => x.TestMerge).OnDelete(DeleteBehavior.Cascade);
-
 			var revInfo = modelBuilder.Entity<RevisionInformation>();
-			revInfo.HasMany(x => x.CompileJobs).WithOne(x => x.RevisionInformation).OnDelete(DeleteBehavior.Cascade);
 			revInfo.HasMany(x => x.ActiveTestMerges).WithOne(x => x.RevisionInformation).OnDelete(DeleteBehavior.Cascade);
-			revInfo.HasOne(x => x.PrimaryTestMerge).WithOne(x => x.PrimaryRevisionInformation).OnDelete(DeleteBehavior.Restrict);
+			revInfo.HasOne(x => x.PrimaryTestMerge).WithOne(x => x.PrimaryRevisionInformation).OnDelete(DeleteBehavior.Cascade);
 			revInfo.HasIndex(x => new { x.InstanceId, x.CommitSha }).IsUnique();
 
-			modelBuilder.Entity<CompileJob>().HasIndex(x => x.DirectoryName);
+			// IMPORTANT: When an instance is deleted (detached) it cascades into the maze of revinfo/testmerge/ritm/compilejob/job/ri relations
+			// This maze starts at revInfo and jobs
+			// jobs takes care of deleting compile jobs and ris
+			// rev info takes care of the rest
+			// Break the link here so the db doesn't shit itself complaining about cascading deletes
+			// EF will handle making the right query to destroy everything
+			revInfo.HasMany(x => x.CompileJobs).WithOne(x => x.RevisionInformation).OnDelete(DeleteBehavior.ClientNoAction);
 
-			modelBuilder.Entity<Job>().HasOne<CompileJob>().WithOne(x => x.Job).OnDelete(DeleteBehavior.Restrict);
+			// Also break the link between ritm and testmerge so it doesn't cycle in a triangle with rev info
+			modelBuilder.Entity<TestMerge>().HasMany(x => x.RevisonInformations).WithOne(x => x.TestMerge).OnDelete(DeleteBehavior.ClientNoAction);
+
+			var compileJob = modelBuilder.Entity<CompileJob>();
+			compileJob.HasIndex(x => x.DirectoryName);
+			compileJob.HasOne(x => x.Job).WithOne().OnDelete(DeleteBehavior.Cascade);
 
 			var chatChannel = modelBuilder.Entity<ChatChannel>();
 			chatChannel.HasIndex(x => new { x.ChatSettingsId, x.IrcChannel }).IsUnique();
@@ -305,7 +313,7 @@ namespace Tgstation.Server.Host.Database
 			if (wasEmpty || (await Database.GetPendingMigrationsAsync(cancellationToken).ConfigureAwait(false)).Any())
 			{
 				Logger.LogInformation("Migrating database...");
-				await Database.MigrateAsync(cancellationToken).ConfigureAwait(false);
+				await Database.EnsureCreatedAsync(cancellationToken).ConfigureAwait(false);
 			}
 			else
 				Logger.LogDebug("No migrations to apply.");

src/Tgstation.Server.Host/Database/Migrations/20200425024539_SLAddJobErrorCodes.cs

@@ -1,34 +0,0 @@
-using Microsoft.EntityFrameworkCore.Migrations;
-using System;
-
-namespace Tgstation.Server.Host.Database.Migrations
-{
-	/// <summary>
-	/// Adds the <see cref="Api.Models.Internal.Job.ErrorCode"/> column for SQLite.
-	/// </summary>
-	public partial class SLAddJobErrorCodes : Migration
-	{
-		/// <inheritdoc />
-		protected override void Up(MigrationBuilder migrationBuilder)
-		{
-			if (migrationBuilder == null)
-				throw new ArgumentNullException(nameof(migrationBuilder));
-
-			migrationBuilder.AddColumn<uint>(
-				name: "ErrorCode",
-				table: "Jobs",
-				nullable: true);
-		}
-
-		/// <inheritdoc />
-		protected override void Down(MigrationBuilder migrationBuilder)
-		{
-			if (migrationBuilder == null)
-				throw new ArgumentNullException(nameof(migrationBuilder));
-
-			migrationBuilder.DropColumn(
-				name: "ErrorCode",
-				table: "Jobs");
-		}
-	}
-}

src/Tgstation.Server.Host/Database/Migrations/20200427173852_MSFixCascadingDelete.Designer.cs

@@ -0,0 +1,830 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+namespace Tgstation.Server.Host.Database.Migrations
+{
+	[DbContext(typeof(SqlServerDatabaseContext))]
+	[Migration("20200427173852_MSFixCascadingDelete")]
+	partial class MSFixCascadingDelete
+	{
+		/// <inheritdoc />
+		protected override void BuildTargetModel(ModelBuilder modelBuilder)
+		{
+#pragma warning disable 612, 618
+			modelBuilder
+				.HasAnnotation("ProductVersion", "3.1.3")
+				.HasAnnotation("Relational:MaxIdentifierLength", 128)
+				.HasAnnotation("SqlServer:ValueGenerationStrategy", SqlServerValueGenerationStrategy.IdentityColumn);
+
+			modelBuilder.Entity("Tgstation.Server.Host.Models.ChatBot", b =>
+				{
+					b.Property<long>("Id")
+						.ValueGeneratedOnAdd()
+						.HasColumnType("bigint")
+						.HasAnnotation("SqlServer:ValueGenerationStrategy", SqlServerValueGenerationStrategy.IdentityColumn);
+
+					b.Property<int>("ChannelLimit")
+						.HasColumnType("int");
+
+					b.Property<string>("ConnectionString")
+						.IsRequired()
+						.HasColumnType("nvarchar(max)")
+						.HasMaxLength(10000);
+
+					b.Property<bool?>("Enabled")
+						.HasColumnType("bit");
+
+					b.Property<long>("InstanceId")
+						.HasColumnType("bigint");
+
+					b.Property<string>("Name")
+						.IsRequired()
+						.HasColumnType("nvarchar(100)")
+						.HasMaxLength(100);
+
+					b.Property<int>("Provider")
+						.HasColumnType("int");
+
+					b.Property<long>("ReconnectionInterval")
+						.HasColumnType("bigint");
+
+					b.HasKey("Id");
+
+					b.HasIndex("InstanceId", "Name")
+						.IsUnique();
+
+					b.ToTable("ChatBots");
+				});
+
+			modelBuilder.Entity("Tgstation.Server.Host.Models.ChatChannel", b =>
+				{
+					b.Property<long>("Id")
+						.ValueGeneratedOnAdd()
+						.HasColumnType("bigint")
+						.HasAnnotation("SqlServer:ValueGenerationStrategy", SqlServerValueGenerationStrategy.IdentityColumn);
+
+					b.Property<long>("ChatSettingsId")
+						.HasColumnType("bigint");
+
+					b.Property<decimal?>("DiscordChannelId")
+						.HasColumnType("decimal(20,0)");
+
+					b.Property<string>("IrcChannel")
+						.HasColumnType("nvarchar(100)")
+						.HasMaxLength(100);
+
+					b.Property<bool?>("IsAdminChannel")
+						.IsRequired()
+						.HasColumnType("bit");
+
+					b.Property<bool?>("IsUpdatesChannel")
+						.IsRequired()
+						.HasColumnType("bit");
+
+					b.Property<bool?>("IsWatchdogChannel")
+						.IsRequired()
+						.HasColumnType("bit");
+
+					b.Property<string>("Tag")
+						.HasColumnType("nvarchar(max)")
+						.HasMaxLength(10000);
+
+					b.HasKey("Id");
+
+					b.HasIndex("ChatSettingsId", "DiscordChannelId")
+						.IsUnique()
+						.HasFilter("[DiscordChannelId] IS NOT NULL");
+
+					b.HasIndex("ChatSettingsId", "IrcChannel")
+						.IsUnique()
+						.HasFilter("[IrcChannel] IS NOT NULL");
+
+					b.ToTable("ChatChannels");
+				});
+
+			modelBuilder.Entity("Tgstation.Server.Host.Models.CompileJob", b =>
+				{
+					b.Property<long>("Id")
+						.ValueGeneratedOnAdd()
+						.HasColumnType("bigint")
+						.HasAnnotation("SqlServer:ValueGenerationStrategy", SqlServerValueGenerationStrategy.IdentityColumn);
+
+					b.Property<string>("ByondVersion")
+						.IsRequired()
+						.HasColumnType("nvarchar(max)");
+
+					b.Property<int?>("DMApiMajorVersion")
+						.HasColumnType("int");
+
+					b.Property<int?>("DMApiMinorVersion")
+						.HasColumnType("int");
+
+					b.Property<int?>("DMApiPatchVersion")
+						.HasColumnType("int");
+
+					b.Property<Guid?>("DirectoryName")
+						.IsRequired()
+						.HasColumnType("uniqueidentifier");
+
+					b.Property<string>("DmeName")
+						.IsRequired()
+						.HasColumnType("nvarchar(max)");
+
+					b.Property<long>("JobId")
+						.HasColumnType("bigint");
+
+					b.Property<int>("MinimumSecurityLevel")
+						.HasColumnType("int");
+
+					b.Property<string>("Output")
+						.IsRequired()
+						.HasColumnType("nvarchar(max)");
+
+					b.Property<long>("RevisionInformationId")
+						.HasColumnType("bigint");
+
+					b.HasKey("Id");
+
+					b.HasIndex("DirectoryName");
+
+					b.HasIndex("JobId")
+						.IsUnique();
+
+					b.HasIndex("RevisionInformationId");
+
+					b.ToTable("CompileJobs");
+				});
+
+			modelBuilder.Entity("Tgstation.Server.Host.Models.DreamDaemonSettings", b =>
+				{
+					b.Property<long>("Id")
+						.ValueGeneratedOnAdd()
+						.HasColumnType("bigint")
+						.HasAnnotation("SqlServer:ValueGenerationStrategy", SqlServerValueGenerationStrategy.IdentityColumn);
+
+					b.Property<string>("AccessToken")
+						.HasColumnType("nvarchar(max)");
+
+					b.Property<bool?>("AllowWebClient")
+						.IsRequired()
+						.HasColumnType("bit");
+
+					b.Property<bool?>("AutoStart")
+						.IsRequired()
+						.HasColumnType("bit");
+
+					b.Property<long>("InstanceId")
+						.HasColumnType("bigint");
+
+					b.Property<int>("PrimaryPort")
+						.HasColumnType("int");
+
+					b.Property<int?>("ProcessId")
+						.HasColumnType("int");
+
+					b.Property<int>("SecondaryPort")
+						.HasColumnType("int");
+
+					b.Property<int>("SecurityLevel")
+						.HasColumnType("int");
+
+					b.Property<bool?>("SoftRestart")
+						.IsRequired()
+						.HasColumnType("bit");
+
+					b.Property<bool?>("SoftShutdown")
+						.IsRequired()
+						.HasColumnType("bit");
+
+					b.Property<long>("StartupTimeout")
+						.HasColumnType("bigint");
+
+					b.HasKey("Id");
+
+					b.HasIndex("InstanceId")
+						.IsUnique();
+
+					b.ToTable("DreamDaemonSettings");
+				});
+
+			modelBuilder.Entity("Tgstation.Server.Host.Models.DreamMakerSettings", b =>
+				{
+					b.Property<long>("Id")
+						.ValueGeneratedOnAdd()
+						.HasColumnType("bigint")
+						.HasAnnotation("SqlServer:ValueGenerationStrategy", SqlServerValueGenerationStrategy.IdentityColumn);
+
+					b.Property<int>("ApiValidationPort")
+						.HasColumnType("int");
+
+					b.Property<int>("ApiValidationSecurityLevel")
+						.HasColumnType("int");
+
+					b.Property<long>("InstanceId")
+						.HasColumnType("bigint");
+
+					b.Property<string>("ProjectName")
+						.HasColumnType("nvarchar(max)")
+						.HasMaxLength(10000);
+
+					b.HasKey("Id");
+
+					b.HasIndex("InstanceId")
+						.IsUnique();
+
+					b.ToTable("DreamMakerSettings");
+				});
+
+			modelBuilder.Entity("Tgstation.Server.Host.Models.Instance", b =>
+				{
+					b.Property<long>("Id")
+						.ValueGeneratedOnAdd()
+						.HasColumnType("bigint")
+						.HasAnnotation("SqlServer:ValueGenerationStrategy", SqlServerValueGenerationStrategy.IdentityColumn);
+
+					b.Property<long>("AutoUpdateInterval")
+						.HasColumnType("bigint");
+
+					b.Property<int>("ChatBotLimit")
+						.HasColumnType("int");
+
+					b.Property<int>("ConfigurationType")
+						.HasColumnType("int");
+
+					b.Property<string>("Name")
+						.IsRequired()
+						.HasColumnType("nvarchar(max)")
+						.HasMaxLength(10000);
+
+					b.Property<bool?>("Online")
+						.IsRequired()
+						.HasColumnType("bit");
+
+					b.Property<string>("Path")
+						.IsRequired()
+						.HasColumnType("nvarchar(450)");
+
+					b.HasKey("Id");
+
+					b.HasIndex("Path")
+						.IsUnique();
+
+					b.ToTable("Instances");
+				});
+
+			modelBuilder.Entity("Tgstation.Server.Host.Models.InstanceUser", b =>
+				{
+					b.Property<long>("Id")
+						.ValueGeneratedOnAdd()
+						.HasColumnType("bigint")
+						.HasAnnotation("SqlServer:ValueGenerationStrategy", SqlServerValueGenerationStrategy.IdentityColumn);
+
+					b.Property<decimal>("ByondRights")
+						.HasColumnType("decimal(20,0)");
+
+					b.Property<decimal>("ChatBotRights")
+						.HasColumnType("decimal(20,0)");
+
+					b.Property<decimal>("ConfigurationRights")
+						.HasColumnType("decimal(20,0)");
+
+					b.Property<decimal>("DreamDaemonRights")
+						.HasColumnType("decimal(20,0)");
+
+					b.Property<decimal>("DreamMakerRights")
+						.HasColumnType("decimal(20,0)");
+
+					b.Property<long>("InstanceId")
+						.HasColumnType("bigint");
+
+					b.Property<decimal>("InstanceUserRights")
+						.HasColumnType("decimal(20,0)");
+
+					b.Property<decimal>("RepositoryRights")
+						.HasColumnType("decimal(20,0)");
+
+					b.Property<long?>("UserId")
+						.IsRequired()
+						.HasColumnType("bigint");
+
+					b.HasKey("Id");
+
+					b.HasIndex("InstanceId");
+
+					b.HasIndex("UserId", "InstanceId")
+						.IsUnique();
+
+					b.ToTable("InstanceUsers");
+				});
+
+			modelBuilder.Entity("Tgstation.Server.Host.Models.Job", b =>
+				{
+					b.Property<long>("Id")
+						.ValueGeneratedOnAdd()
+						.HasColumnType("bigint")
+						.HasAnnotation("SqlServer:ValueGenerationStrategy", SqlServerValueGenerationStrategy.IdentityColumn);
+
+					b.Property<decimal?>("CancelRight")
+						.HasColumnType("decimal(20,0)");
+
+					b.Property<decimal?>("CancelRightsType")
+						.HasColumnType("decimal(20,0)");
+
+					b.Property<bool?>("Cancelled")
+						.IsRequired()
+						.HasColumnType("bit");
+
+					b.Property<long?>("CancelledById")
+						.HasColumnType("bigint");
+
+					b.Property<string>("Description")
+						.IsRequired()
+						.HasColumnType("nvarchar(max)");
+
+					b.Property<long?>("ErrorCode")
+						.HasColumnType("bigint");
+
+					b.Property<string>("ExceptionDetails")
+						.HasColumnType("nvarchar(max)");
+
+					b.Property<long>("InstanceId")
+						.HasColumnType("bigint");
+
+					b.Property<DateTimeOffset?>("StartedAt")
+						.IsRequired()
+						.HasColumnType("datetimeoffset");
+
+					b.Property<long>("StartedById")
+						.HasColumnType("bigint");
+
+					b.Property<DateTimeOffset?>("StoppedAt")
+						.HasColumnType("datetimeoffset");
+
+					b.HasKey("Id");
+
+					b.HasIndex("CancelledById");
+
+					b.HasIndex("InstanceId");
+
+					b.HasIndex("StartedById");
+
+					b.ToTable("Jobs");
+				});
+
+			modelBuilder.Entity("Tgstation.Server.Host.Models.ReattachInformation", b =>
+				{
+					b.Property<long>("Id")
+						.ValueGeneratedOnAdd()
+						.HasColumnType("bigint")
+						.HasAnnotation("SqlServer:ValueGenerationStrategy", SqlServerValueGenerationStrategy.IdentityColumn);
+
+					b.Property<string>("AccessIdentifier")
+						.IsRequired()
+						.HasColumnType("nvarchar(max)");
+
+					b.Property<long>("CompileJobId")
+						.HasColumnType("bigint");
+
+					b.Property<bool>("IsPrimary")
+						.HasColumnType("bit");
+
+					b.Property<int>("LaunchSecurityLevel")
+						.HasColumnType("int");
+
+					b.Property<int>("Port")
+						.HasColumnType("int");
+
+					b.Property<int>("ProcessId")
+						.HasColumnType("int");
+
+					b.Property<int>("RebootState")
+						.HasColumnType("int");
+
+					b.HasKey("Id");
+
+					b.HasIndex("CompileJobId");
+
+					b.ToTable("ReattachInformations");
+				});
+
+			modelBuilder.Entity("Tgstation.Server.Host.Models.RepositorySettings", b =>
+				{
+					b.Property<long>("Id")
+						.ValueGeneratedOnAdd()
+						.HasColumnType("bigint")
+						.HasAnnotation("SqlServer:ValueGenerationStrategy", SqlServerValueGenerationStrategy.IdentityColumn);
+
+					b.Property<string>("AccessToken")
+						.HasColumnType("nvarchar(max)")
+						.HasMaxLength(10000);
+
+					b.Property<string>("AccessUser")
+						.HasColumnType("nvarchar(max)")
+						.HasMaxLength(10000);
+
+					b.Property<bool?>("AutoUpdatesKeepTestMerges")
+						.IsRequired()
+						.HasColumnType("bit");
+
+					b.Property<bool?>("AutoUpdatesSynchronize")
+						.IsRequired()
+						.HasColumnType("bit");
+
+					b.Property<string>("CommitterEmail")
+						.IsRequired()
+						.HasColumnType("nvarchar(max)")
+						.HasMaxLength(10000);
+
+					b.Property<string>("CommitterName")
+						.IsRequired()
+						.HasColumnType("nvarchar(max)")
+						.HasMaxLength(10000);
+
+					b.Property<long>("InstanceId")
+						.HasColumnType("bigint");
+
+					b.Property<bool?>("PostTestMergeComment")
+						.IsRequired()
+						.HasColumnType("bit");
+
+					b.Property<bool?>("PushTestMergeCommits")
+						.IsRequired()
+						.HasColumnType("bit");
+
+					b.Property<bool?>("ShowTestMergeCommitters")
+						.IsRequired()
+						.HasColumnType("bit");
+
+					b.HasKey("Id");
+
+					b.HasIndex("InstanceId")
+						.IsUnique();
+
+					b.ToTable("RepositorySettings");
+				});
+
+			modelBuilder.Entity("Tgstation.Server.Host.Models.RevInfoTestMerge", b =>
+				{
+					b.Property<long>("Id")
+						.ValueGeneratedOnAdd()
+						.HasColumnType("bigint")
+						.HasAnnotation("SqlServer:ValueGenerationStrategy", SqlServerValueGenerationStrategy.IdentityColumn);
+
+					b.Property<long>("RevisionInformationId")
+						.HasColumnType("bigint");
+
+					b.Property<long>("TestMergeId")
+						.HasColumnType("bigint");
+
+					b.HasKey("Id");
+
+					b.HasIndex("RevisionInformationId");
+
+					b.HasIndex("TestMergeId");
+
+					b.ToTable("RevInfoTestMerges");
+				});
+
+			modelBuilder.Entity("Tgstation.Server.Host.Models.RevisionInformation", b =>
+				{
+					b.Property<long>("Id")
+						.ValueGeneratedOnAdd()
+						.HasColumnType("bigint")
+						.HasAnnotation("SqlServer:ValueGenerationStrategy", SqlServerValueGenerationStrategy.IdentityColumn);
+
+					b.Property<string>("CommitSha")
+						.IsRequired()
+						.HasColumnType("nvarchar(40)")
+						.HasMaxLength(40);
+
+					b.Property<long>("InstanceId")
+						.HasColumnType("bigint");
+
+					b.Property<string>("OriginCommitSha")
+						.IsRequired()
+						.HasColumnType("nvarchar(40)")
+						.HasMaxLength(40);
+
+					b.HasKey("Id");
+
+					b.HasIndex("InstanceId", "CommitSha")
+						.IsUnique();
+
+					b.ToTable("RevisionInformations");
+				});
+
+			modelBuilder.Entity("Tgstation.Server.Host.Models.TestMerge", b =>
+				{
+					b.Property<long>("Id")
+						.ValueGeneratedOnAdd()
+						.HasColumnType("bigint")
+						.HasAnnotation("SqlServer:ValueGenerationStrategy", SqlServerValueGenerationStrategy.IdentityColumn);
+
+					b.Property<string>("Author")
+						.IsRequired()
+						.HasColumnType("nvarchar(max)");
+
+					b.Property<string>("BodyAtMerge")
+						.IsRequired()
+						.HasColumnType("nvarchar(max)");
+
+					b.Property<string>("Comment")
+						.HasColumnType("nvarchar(max)")
+						.HasMaxLength(10000);
+
+					b.Property<DateTimeOffset>("MergedAt")
+						.HasColumnType("datetimeoffset");
+
+					b.Property<long>("MergedById")
+						.HasColumnType("bigint");
+
+					b.Property<int>("Number")
+						.HasColumnType("int");
+
+					b.Property<long?>("PrimaryRevisionInformationId")
+						.IsRequired()
+						.HasColumnType("bigint");
+
+					b.Property<string>("PullRequestRevision")
+						.IsRequired()
+						.HasColumnType("nvarchar(40)")
+						.HasMaxLength(40);
+
+					b.Property<string>("TitleAtMerge")
+						.IsRequired()
+						.HasColumnType("nvarchar(max)");
+
+					b.Property<string>("Url")
+						.IsRequired()
+						.HasColumnType("nvarchar(max)");
+
+					b.HasKey("Id");
+
+					b.HasIndex("MergedById");
+
+					b.HasIndex("PrimaryRevisionInformationId")
+						.IsUnique();
+
+					b.ToTable("TestMerges");
+				});
+
+			modelBuilder.Entity("Tgstation.Server.Host.Models.User", b =>
+				{
+					b.Property<long?>("Id")
+						.ValueGeneratedOnAdd()
+						.HasColumnType("bigint")
+						.HasAnnotation("SqlServer:ValueGenerationStrategy", SqlServerValueGenerationStrategy.IdentityColumn);
+
+					b.Property<decimal>("AdministrationRights")
+						.HasColumnType("decimal(20,0)");
+
+					b.Property<string>("CanonicalName")
+						.IsRequired()
+						.HasColumnType("nvarchar(450)");
+
+					b.Property<DateTimeOffset?>("CreatedAt")
+						.IsRequired()
+						.HasColumnType("datetimeoffset");
+
+					b.Property<long?>("CreatedById")
+						.HasColumnType("bigint");
+
+					b.Property<bool?>("Enabled")
+						.IsRequired()
+						.HasColumnType("bit");
+
+					b.Property<decimal>("InstanceManagerRights")
+						.HasColumnType("decimal(20,0)");
+
+					b.Property<DateTimeOffset?>("LastPasswordUpdate")
+						.HasColumnType("datetimeoffset");
+
+					b.Property<string>("Name")
+						.IsRequired()
+						.HasColumnType("nvarchar(max)")
+						.HasMaxLength(10000);
+
+					b.Property<string>("PasswordHash")
+						.HasColumnType("nvarchar(max)");
+
+					b.Property<string>("SystemIdentifier")
+						.HasColumnType("nvarchar(450)");
+
+					b.HasKey("Id");
+
+					b.HasIndex("CanonicalName")
+						.IsUnique();
+
+					b.HasIndex("CreatedById");
+
+					b.HasIndex("SystemIdentifier")
+						.IsUnique()
+						.HasFilter("[SystemIdentifier] IS NOT NULL");
+
+					b.ToTable("Users");
+				});
+
+			modelBuilder.Entity("Tgstation.Server.Host.Models.WatchdogReattachInformation", b =>
+				{
+					b.Property<long>("Id")
+						.ValueGeneratedOnAdd()
+						.HasColumnType("bigint")
+						.HasAnnotation("SqlServer:ValueGenerationStrategy", SqlServerValueGenerationStrategy.IdentityColumn);
+
+					b.Property<long?>("AlphaId")
+						.HasColumnType("bigint");
+
+					b.Property<bool>("AlphaIsActive")
+						.HasColumnType("bit");
+
+					b.Property<long?>("BravoId")
+						.HasColumnType("bigint");
+
+					b.Property<long>("InstanceId")
+						.HasColumnType("bigint");
+
+					b.HasKey("Id");
+
+					b.HasIndex("AlphaId");
+
+					b.HasIndex("BravoId");
+
+					b.HasIndex("InstanceId")
+						.IsUnique();
+
+					b.ToTable("WatchdogReattachInformations");
+				});
+
+			modelBuilder.Entity("Tgstation.Server.Host.Models.ChatBot", b =>
+				{
+					b.HasOne("Tgstation.Server.Host.Models.Instance", "Instance")
+						.WithMany("ChatSettings")
+						.HasForeignKey("InstanceId")
+						.OnDelete(DeleteBehavior.Cascade)
+						.IsRequired();
+				});
+
+			modelBuilder.Entity("Tgstation.Server.Host.Models.ChatChannel", b =>
+				{
+					b.HasOne("Tgstation.Server.Host.Models.ChatBot", "ChatSettings")
+						.WithMany("Channels")
+						.HasForeignKey("ChatSettingsId")
+						.OnDelete(DeleteBehavior.Cascade)
+						.IsRequired();
+				});
+
+			modelBuilder.Entity("Tgstation.Server.Host.Models.CompileJob", b =>
+				{
+					b.HasOne("Tgstation.Server.Host.Models.Job", "Job")
+						.WithOne()
+						.HasForeignKey("Tgstation.Server.Host.Models.CompileJob", "JobId")
+						.OnDelete(DeleteBehavior.Cascade)
+						.IsRequired();
+
+					b.HasOne("Tgstation.Server.Host.Models.RevisionInformation", "RevisionInformation")
+						.WithMany("CompileJobs")
+						.HasForeignKey("RevisionInformationId")
+						.OnDelete(DeleteBehavior.ClientNoAction)
+						.IsRequired();
+				});
+
+			modelBuilder.Entity("Tgstation.Server.Host.Models.DreamDaemonSettings", b =>
+				{
+					b.HasOne("Tgstation.Server.Host.Models.Instance", "Instance")
+						.WithOne("DreamDaemonSettings")
+						.HasForeignKey("Tgstation.Server.Host.Models.DreamDaemonSettings", "InstanceId")
+						.OnDelete(DeleteBehavior.Cascade)
+						.IsRequired();
+				});
+
+			modelBuilder.Entity("Tgstation.Server.Host.Models.DreamMakerSettings", b =>
+				{
+					b.HasOne("Tgstation.Server.Host.Models.Instance", "Instance")
+						.WithOne("DreamMakerSettings")
+						.HasForeignKey("Tgstation.Server.Host.Models.DreamMakerSettings", "InstanceId")
+						.OnDelete(DeleteBehavior.Cascade)
+						.IsRequired();
+				});
+
+			modelBuilder.Entity("Tgstation.Server.Host.Models.InstanceUser", b =>
+				{
+					b.HasOne("Tgstation.Server.Host.Models.Instance", "Instance")
+						.WithMany("InstanceUsers")
+						.HasForeignKey("InstanceId")
+						.OnDelete(DeleteBehavior.Cascade)
+						.IsRequired();
+
+					b.HasOne("Tgstation.Server.Host.Models.User", null)
+						.WithMany("InstanceUsers")
+						.HasForeignKey("UserId")
+						.OnDelete(DeleteBehavior.Cascade)
+						.IsRequired();
+				});
+
+			modelBuilder.Entity("Tgstation.Server.Host.Models.Job", b =>
+				{
+					b.HasOne("Tgstation.Server.Host.Models.User", "CancelledBy")
+						.WithMany()
+						.HasForeignKey("CancelledById");
+
+					b.HasOne("Tgstation.Server.Host.Models.Instance", "Instance")
+						.WithMany("Jobs")
+						.HasForeignKey("InstanceId")
+						.OnDelete(DeleteBehavior.Cascade)
+						.IsRequired();
+
+					b.HasOne("Tgstation.Server.Host.Models.User", "StartedBy")
+						.WithMany()
+						.HasForeignKey("StartedById")
+						.OnDelete(DeleteBehavior.Cascade)
+						.IsRequired();
+				});
+
+			modelBuilder.Entity("Tgstation.Server.Host.Models.ReattachInformation", b =>
+				{
+					b.HasOne("Tgstation.Server.Host.Models.CompileJob", "CompileJob")
+						.WithMany()
+						.HasForeignKey("CompileJobId")
+						.OnDelete(DeleteBehavior.Cascade)
+						.IsRequired();
+				});
+
+			modelBuilder.Entity("Tgstation.Server.Host.Models.RepositorySettings", b =>
+				{
+					b.HasOne("Tgstation.Server.Host.Models.Instance", "Instance")
+						.WithOne("RepositorySettings")
+						.HasForeignKey("Tgstation.Server.Host.Models.RepositorySettings", "InstanceId")
+						.OnDelete(DeleteBehavior.Cascade)
+						.IsRequired();
+				});
+
+			modelBuilder.Entity("Tgstation.Server.Host.Models.RevInfoTestMerge", b =>
+				{
+					b.HasOne("Tgstation.Server.Host.Models.RevisionInformation", "RevisionInformation")
+						.WithMany("ActiveTestMerges")
+						.HasForeignKey("RevisionInformationId")
+						.OnDelete(DeleteBehavior.Cascade)
+						.IsRequired();
+
+					b.HasOne("Tgstation.Server.Host.Models.TestMerge", "TestMerge")
+						.WithMany("RevisonInformations")
+						.HasForeignKey("TestMergeId")
+						.OnDelete(DeleteBehavior.ClientNoAction)
+						.IsRequired();
+				});
+
+			modelBuilder.Entity("Tgstation.Server.Host.Models.RevisionInformation", b =>
+				{
+					b.HasOne("Tgstation.Server.Host.Models.Instance", "Instance")
+						.WithMany("RevisionInformations")
+						.HasForeignKey("InstanceId")
+						.OnDelete(DeleteBehavior.Cascade)
+						.IsRequired();
+				});
+
+			modelBuilder.Entity("Tgstation.Server.Host.Models.TestMerge", b =>
+				{
+					b.HasOne("Tgstation.Server.Host.Models.User", "MergedBy")
+						.WithMany("TestMerges")
+						.HasForeignKey("MergedById")
+						.OnDelete(DeleteBehavior.Restrict)
+						.IsRequired();
+
+					b.HasOne("Tgstation.Server.Host.Models.RevisionInformation", "PrimaryRevisionInformation")
+						.WithOne("PrimaryTestMerge")
+						.HasForeignKey("Tgstation.Server.Host.Models.TestMerge", "PrimaryRevisionInformationId")
+						.OnDelete(DeleteBehavior.Cascade)
+						.IsRequired();
+				});
+
+			modelBuilder.Entity("Tgstation.Server.Host.Models.User", b =>
+				{
+					b.HasOne("Tgstation.Server.Host.Models.User", "CreatedBy")
+						.WithMany("CreatedUsers")
+						.HasForeignKey("CreatedById");
+				});
+
+			modelBuilder.Entity("Tgstation.Server.Host.Models.WatchdogReattachInformation", b =>
+				{
+					b.HasOne("Tgstation.Server.Host.Models.ReattachInformation", "Alpha")
+						.WithMany()
+						.HasForeignKey("AlphaId");
+
+					b.HasOne("Tgstation.Server.Host.Models.ReattachInformation", "Bravo")
+						.WithMany()
+						.HasForeignKey("BravoId");
+
+					b.HasOne("Tgstation.Server.Host.Models.Instance", null)
+						.WithOne("WatchdogReattachInformation")
+						.HasForeignKey("Tgstation.Server.Host.Models.WatchdogReattachInformation", "InstanceId")
+						.OnDelete(DeleteBehavior.Cascade)
+						.IsRequired();
+				});
+#pragma warning restore 612, 618
+		}
+	}
+}

src/Tgstation.Server.Host/Database/Migrations/20200427173852_MSFixCascadingDelete.cs

@@ -0,0 +1,119 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+using System;
+
+namespace Tgstation.Server.Host.Database.Migrations
+{
+	/// <summary>
+	/// Fix cascading data deletes for <see cref="Models.Instance"/>s on MSSQL.
+	/// </summary>
+	public partial class MSFixCascadingDelete : Migration
+	{
+		/// <inheritdoc />
+		protected override void Up(MigrationBuilder migrationBuilder)
+		{
+			if (migrationBuilder == null)
+				throw new ArgumentNullException(nameof(migrationBuilder));
+
+			migrationBuilder.DropForeignKey(
+				name: "FK_CompileJobs_Jobs_JobId",
+				table: "CompileJobs");
+
+			migrationBuilder.DropForeignKey(
+				name: "FK_CompileJobs_RevisionInformations_RevisionInformationId",
+				table: "CompileJobs");
+
+			migrationBuilder.DropForeignKey(
+				name: "FK_RevInfoTestMerges_TestMerges_TestMergeId",
+				table: "RevInfoTestMerges");
+
+			migrationBuilder.DropForeignKey(
+				name: "FK_TestMerges_RevisionInformations_PrimaryRevisionInformationId",
+				table: "TestMerges");
+
+			migrationBuilder.AddForeignKey(
+				name: "FK_CompileJobs_Jobs_JobId",
+				table: "CompileJobs",
+				column: "JobId",
+				principalTable: "Jobs",
+				principalColumn: "Id",
+				onDelete: ReferentialAction.Cascade);
+
+			migrationBuilder.AddForeignKey(
+				name: "FK_CompileJobs_RevisionInformations_RevisionInformationId",
+				table: "CompileJobs",
+				column: "RevisionInformationId",
+				principalTable: "RevisionInformations",
+				principalColumn: "Id");
+
+			migrationBuilder.AddForeignKey(
+				name: "FK_RevInfoTestMerges_TestMerges_TestMergeId",
+				table: "RevInfoTestMerges",
+				column: "TestMergeId",
+				principalTable: "TestMerges",
+				principalColumn: "Id");
+
+			migrationBuilder.AddForeignKey(
+				name: "FK_TestMerges_RevisionInformations_PrimaryRevisionInformationId",
+				table: "TestMerges",
+				column: "PrimaryRevisionInformationId",
+				principalTable: "RevisionInformations",
+				principalColumn: "Id",
+				onDelete: ReferentialAction.Cascade);
+		}
+
+		/// <inheritdoc />
+		protected override void Down(MigrationBuilder migrationBuilder)
+		{
+			if (migrationBuilder == null)
+				throw new ArgumentNullException(nameof(migrationBuilder));
+
+			migrationBuilder.DropForeignKey(
+				name: "FK_CompileJobs_Jobs_JobId",
+				table: "CompileJobs");
+
+			migrationBuilder.DropForeignKey(
+				name: "FK_CompileJobs_RevisionInformations_RevisionInformationId",
+				table: "CompileJobs");
+
+			migrationBuilder.DropForeignKey(
+				name: "FK_RevInfoTestMerges_TestMerges_TestMergeId",
+				table: "RevInfoTestMerges");
+
+			migrationBuilder.DropForeignKey(
+				name: "FK_TestMerges_RevisionInformations_PrimaryRevisionInformationId",
+				table: "TestMerges");
+
+			migrationBuilder.AddForeignKey(
+				name: "FK_CompileJobs_Jobs_JobId",
+				table: "CompileJobs",
+				column: "JobId",
+				principalTable: "Jobs",
+				principalColumn: "Id",
+				onDelete: ReferentialAction.Restrict);
+
+			migrationBuilder.AddForeignKey(
+				name: "FK_CompileJobs_RevisionInformations_RevisionInformationId",
+				table: "CompileJobs",
+				column: "RevisionInformationId",
+				principalTable: "RevisionInformations",
+				principalColumn: "Id",
+				onDelete: ReferentialAction.Cascade);
+
+			migrationBuilder.AddForeignKey(
+				name: "FK_RevInfoTestMerges_TestMerges_TestMergeId",
+				table: "RevInfoTestMerges",
+				column: "TestMergeId",
+				principalTable: "TestMerges",
+				principalColumn: "Id",
+				onDelete: ReferentialAction.Cascade);
+
+			migrationBuilder.AddForeignKey(
+				name: "FK_TestMerges_RevisionInformations_PrimaryRevisionInformationId",
+				table: "TestMerges",
+				column: "PrimaryRevisionInformationId",
+				principalTable: "RevisionInformations",
+				principalColumn: "Id",
+				onDelete: ReferentialAction.Restrict);
+		}
+	}
+}

src/Tgstation.Server.Host/Database/Migrations/20200427180159_MYFixCascadingDelete.Designer.cs

@@ -6,49 +6,50 @@ using Microsoft.EntityFrameworkCore.Migrations;
 
 namespace Tgstation.Server.Host.Database.Migrations
 {
-	[DbContext(typeof(SqliteDatabaseContext))]
-	[Migration("20200423053214_SLRebuild")]
-	partial class SLRebuild
+	[DbContext(typeof(MySqlDatabaseContext))]
+	[Migration("20200427180159_MYFixCascadingDelete")]
+	partial class MYFixCascadingDelete
 	{
 		/// <inheritdoc />
 		protected override void BuildTargetModel(ModelBuilder modelBuilder)
 		{
 #pragma warning disable 612, 618
 			modelBuilder
-				.HasAnnotation("ProductVersion", "3.1.3");
+				.HasAnnotation("ProductVersion", "3.1.3")
+				.HasAnnotation("Relational:MaxIdentifierLength", 64);
 
 			modelBuilder.Entity("Tgstation.Server.Host.Models.ChatBot", b =>
 				{
 					b.Property<long>("Id")
 						.ValueGeneratedOnAdd()
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<ushort?>("ChannelLimit")
 						.IsRequired()
-						.HasColumnType("INTEGER");
+						.HasColumnType("smallint unsigned");
 
 					b.Property<string>("ConnectionString")
 						.IsRequired()
-						.HasColumnType("TEXT")
+						.HasColumnType("longtext CHARACTER SET utf8mb4")
 						.HasMaxLength(10000);
 
 					b.Property<bool?>("Enabled")
-						.HasColumnType("INTEGER");
+						.HasColumnType("tinyint(1)");
 
 					b.Property<long>("InstanceId")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<string>("Name")
 						.IsRequired()
-						.HasColumnType("TEXT")
+						.HasColumnType("varchar(100) CHARACTER SET utf8mb4")
 						.HasMaxLength(100);
 
 					b.Property<int>("Provider")
-						.HasColumnType("INTEGER");
+						.HasColumnType("int");
 
 					b.Property<uint?>("ReconnectionInterval")
 						.IsRequired()
-						.HasColumnType("INTEGER");
+						.HasColumnType("int unsigned");
 
 					b.HasKey("Id");
 
@@ -62,32 +63,32 @@ namespace Tgstation.Server.Host.Database.Migrations
 				{
 					b.Property<long>("Id")
 						.ValueGeneratedOnAdd()
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<long>("ChatSettingsId")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<ulong?>("DiscordChannelId")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint unsigned");
 
 					b.Property<string>("IrcChannel")
-						.HasColumnType("TEXT")
+						.HasColumnType("varchar(100) CHARACTER SET utf8mb4")
 						.HasMaxLength(100);
 
 					b.Property<bool?>("IsAdminChannel")
 						.IsRequired()
-						.HasColumnType("INTEGER");
+						.HasColumnType("tinyint(1)");
 
 					b.Property<bool?>("IsUpdatesChannel")
 						.IsRequired()
-						.HasColumnType("INTEGER");
+						.HasColumnType("tinyint(1)");
 
 					b.Property<bool?>("IsWatchdogChannel")
 						.IsRequired()
-						.HasColumnType("INTEGER");
+						.HasColumnType("tinyint(1)");
 
 					b.Property<string>("Tag")
-						.HasColumnType("TEXT")
+						.HasColumnType("longtext CHARACTER SET utf8mb4")
 						.HasMaxLength(10000);
 
 					b.HasKey("Id");
@@ -105,41 +106,41 @@ namespace Tgstation.Server.Host.Database.Migrations
 				{
 					b.Property<long>("Id")
 						.ValueGeneratedOnAdd()
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<string>("ByondVersion")
 						.IsRequired()
-						.HasColumnType("TEXT");
+						.HasColumnType("longtext CHARACTER SET utf8mb4");
 
 					b.Property<int?>("DMApiMajorVersion")
-						.HasColumnType("INTEGER");
+						.HasColumnType("int");
 
 					b.Property<int?>("DMApiMinorVersion")
-						.HasColumnType("INTEGER");
+						.HasColumnType("int");
 
 					b.Property<int?>("DMApiPatchVersion")
-						.HasColumnType("INTEGER");
+						.HasColumnType("int");
 
 					b.Property<Guid?>("DirectoryName")
 						.IsRequired()
-						.HasColumnType("TEXT");
+						.HasColumnType("char(36)");
 
 					b.Property<string>("DmeName")
 						.IsRequired()
-						.HasColumnType("TEXT");
+						.HasColumnType("longtext CHARACTER SET utf8mb4");
 
 					b.Property<long>("JobId")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<int>("MinimumSecurityLevel")
-						.HasColumnType("INTEGER");
+						.HasColumnType("int");
 
 					b.Property<string>("Output")
 						.IsRequired()
-						.HasColumnType("TEXT");
+						.HasColumnType("longtext CHARACTER SET utf8mb4");
 
 					b.Property<long>("RevisionInformationId")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.HasKey("Id");
 
@@ -157,47 +158,47 @@ namespace Tgstation.Server.Host.Database.Migrations
 				{
 					b.Property<long>("Id")
 						.ValueGeneratedOnAdd()
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<string>("AccessToken")
-						.HasColumnType("TEXT");
+						.HasColumnType("longtext CHARACTER SET utf8mb4");
 
 					b.Property<bool?>("AllowWebClient")
 						.IsRequired()
-						.HasColumnType("INTEGER");
+						.HasColumnType("tinyint(1)");
 
 					b.Property<bool?>("AutoStart")
 						.IsRequired()
-						.HasColumnType("INTEGER");
+						.HasColumnType("tinyint(1)");
 
 					b.Property<long>("InstanceId")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<ushort?>("PrimaryPort")
 						.IsRequired()
-						.HasColumnType("INTEGER");
+						.HasColumnType("smallint unsigned");
 
 					b.Property<int?>("ProcessId")
-						.HasColumnType("INTEGER");
+						.HasColumnType("int");
 
 					b.Property<ushort?>("SecondaryPort")
 						.IsRequired()
-						.HasColumnType("INTEGER");
+						.HasColumnType("smallint unsigned");
 
 					b.Property<int>("SecurityLevel")
-						.HasColumnType("INTEGER");
+						.HasColumnType("int");
 
 					b.Property<bool?>("SoftRestart")
 						.IsRequired()
-						.HasColumnType("INTEGER");
+						.HasColumnType("tinyint(1)");
 
 					b.Property<bool?>("SoftShutdown")
 						.IsRequired()
-						.HasColumnType("INTEGER");
+						.HasColumnType("tinyint(1)");
 
 					b.Property<uint?>("StartupTimeout")
 						.IsRequired()
-						.HasColumnType("INTEGER");
+						.HasColumnType("int unsigned");
 
 					b.HasKey("Id");
 
@@ -211,20 +212,20 @@ namespace Tgstation.Server.Host.Database.Migrations
 				{
 					b.Property<long>("Id")
 						.ValueGeneratedOnAdd()
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<ushort?>("ApiValidationPort")
 						.IsRequired()
-						.HasColumnType("INTEGER");
+						.HasColumnType("smallint unsigned");
 
 					b.Property<int>("ApiValidationSecurityLevel")
-						.HasColumnType("INTEGER");
+						.HasColumnType("int");
 
 					b.Property<long>("InstanceId")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<string>("ProjectName")
-						.HasColumnType("TEXT")
+						.HasColumnType("longtext CHARACTER SET utf8mb4")
 						.HasMaxLength(10000);
 
 					b.HasKey("Id");
@@ -239,31 +240,31 @@ namespace Tgstation.Server.Host.Database.Migrations
 				{
 					b.Property<long>("Id")
 						.ValueGeneratedOnAdd()
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<uint?>("AutoUpdateInterval")
 						.IsRequired()
-						.HasColumnType("INTEGER");
+						.HasColumnType("int unsigned");
 
 					b.Property<ushort?>("ChatBotLimit")
 						.IsRequired()
-						.HasColumnType("INTEGER");
+						.HasColumnType("smallint unsigned");
 
 					b.Property<int>("ConfigurationType")
-						.HasColumnType("INTEGER");
+						.HasColumnType("int");
 
 					b.Property<string>("Name")
 						.IsRequired()
-						.HasColumnType("TEXT")
+						.HasColumnType("longtext CHARACTER SET utf8mb4")
 						.HasMaxLength(10000);
 
 					b.Property<bool?>("Online")
 						.IsRequired()
-						.HasColumnType("INTEGER");
+						.HasColumnType("tinyint(1)");
 
 					b.Property<string>("Path")
 						.IsRequired()
-						.HasColumnType("TEXT");
+						.HasColumnType("varchar(255) CHARACTER SET utf8mb4");
 
 					b.HasKey("Id");
 
@@ -277,35 +278,35 @@ namespace Tgstation.Server.Host.Database.Migrations
 				{
 					b.Property<long>("Id")
 						.ValueGeneratedOnAdd()
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<ulong>("ByondRights")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint unsigned");
 
 					b.Property<ulong>("ChatBotRights")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint unsigned");
 
 					b.Property<ulong>("ConfigurationRights")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint unsigned");
 
 					b.Property<ulong>("DreamDaemonRights")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint unsigned");
 
 					b.Property<ulong>("DreamMakerRights")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint unsigned");
 
 					b.Property<long>("InstanceId")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<ulong>("InstanceUserRights")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint unsigned");
 
 					b.Property<ulong>("RepositoryRights")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint unsigned");
 
 					b.Property<long?>("UserId")
 						.IsRequired()
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.HasKey("Id");
 
@@ -321,40 +322,43 @@ namespace Tgstation.Server.Host.Database.Migrations
 				{
 					b.Property<long>("Id")
 						.ValueGeneratedOnAdd()
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<ulong?>("CancelRight")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint unsigned");
 
 					b.Property<ulong?>("CancelRightsType")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint unsigned");
 
 					b.Property<bool?>("Cancelled")
 						.IsRequired()
-						.HasColumnType("INTEGER");
+						.HasColumnType("tinyint(1)");
 
 					b.Property<long?>("CancelledById")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<string>("Description")
 						.IsRequired()
-						.HasColumnType("TEXT");
+						.HasColumnType("longtext CHARACTER SET utf8mb4");
+
+					b.Property<uint?>("ErrorCode")
+						.HasColumnType("int unsigned");
 
 					b.Property<string>("ExceptionDetails")
-						.HasColumnType("TEXT");
+						.HasColumnType("longtext CHARACTER SET utf8mb4");
 
 					b.Property<long>("InstanceId")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<DateTimeOffset?>("StartedAt")
 						.IsRequired()
-						.HasColumnType("TEXT");
+						.HasColumnType("datetime(6)");
 
 					b.Property<long>("StartedById")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<DateTimeOffset?>("StoppedAt")
-						.HasColumnType("TEXT");
+						.HasColumnType("datetime(6)");
 
 					b.HasKey("Id");
 
@@ -371,29 +375,29 @@ namespace Tgstation.Server.Host.Database.Migrations
 				{
 					b.Property<long>("Id")
 						.ValueGeneratedOnAdd()
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<string>("AccessIdentifier")
 						.IsRequired()
-						.HasColumnType("TEXT");
+						.HasColumnType("longtext CHARACTER SET utf8mb4");
 
 					b.Property<long>("CompileJobId")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<bool>("IsPrimary")
-						.HasColumnType("INTEGER");
+						.HasColumnType("tinyint(1)");
 
 					b.Property<int>("LaunchSecurityLevel")
-						.HasColumnType("INTEGER");
+						.HasColumnType("int");
 
 					b.Property<ushort>("Port")
-						.HasColumnType("INTEGER");
+						.HasColumnType("smallint unsigned");
 
 					b.Property<int>("ProcessId")
-						.HasColumnType("INTEGER");
+						.HasColumnType("int");
 
 					b.Property<int>("RebootState")
-						.HasColumnType("INTEGER");
+						.HasColumnType("int");
 
 					b.HasKey("Id");
 
@@ -406,48 +410,48 @@ namespace Tgstation.Server.Host.Database.Migrations
 				{
 					b.Property<long>("Id")
 						.ValueGeneratedOnAdd()
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<string>("AccessToken")
-						.HasColumnType("TEXT")
+						.HasColumnType("longtext CHARACTER SET utf8mb4")
 						.HasMaxLength(10000);
 
 					b.Property<string>("AccessUser")
-						.HasColumnType("TEXT")
+						.HasColumnType("longtext CHARACTER SET utf8mb4")
 						.HasMaxLength(10000);
 
 					b.Property<bool?>("AutoUpdatesKeepTestMerges")
 						.IsRequired()
-						.HasColumnType("INTEGER");
+						.HasColumnType("tinyint(1)");
 
 					b.Property<bool?>("AutoUpdatesSynchronize")
 						.IsRequired()
-						.HasColumnType("INTEGER");
+						.HasColumnType("tinyint(1)");
 
 					b.Property<string>("CommitterEmail")
 						.IsRequired()
-						.HasColumnType("TEXT")
+						.HasColumnType("longtext CHARACTER SET utf8mb4")
 						.HasMaxLength(10000);
 
 					b.Property<string>("CommitterName")
 						.IsRequired()
-						.HasColumnType("TEXT")
+						.HasColumnType("longtext CHARACTER SET utf8mb4")
 						.HasMaxLength(10000);
 
 					b.Property<long>("InstanceId")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<bool?>("PostTestMergeComment")
 						.IsRequired()
-						.HasColumnType("INTEGER");
+						.HasColumnType("tinyint(1)");
 
 					b.Property<bool?>("PushTestMergeCommits")
 						.IsRequired()
-						.HasColumnType("INTEGER");
+						.HasColumnType("tinyint(1)");
 
 					b.Property<bool?>("ShowTestMergeCommitters")
 						.IsRequired()
-						.HasColumnType("INTEGER");
+						.HasColumnType("tinyint(1)");
 
 					b.HasKey("Id");
 
@@ -461,13 +465,13 @@ namespace Tgstation.Server.Host.Database.Migrations
 				{
 					b.Property<long>("Id")
 						.ValueGeneratedOnAdd()
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<long>("RevisionInformationId")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<long>("TestMergeId")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.HasKey("Id");
 
@@ -482,19 +486,19 @@ namespace Tgstation.Server.Host.Database.Migrations
 				{
 					b.Property<long>("Id")
 						.ValueGeneratedOnAdd()
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<string>("CommitSha")
 						.IsRequired()
-						.HasColumnType("TEXT")
+						.HasColumnType("varchar(40) CHARACTER SET utf8mb4")
 						.HasMaxLength(40);
 
 					b.Property<long>("InstanceId")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<string>("OriginCommitSha")
 						.IsRequired()
-						.HasColumnType("TEXT")
+						.HasColumnType("varchar(40) CHARACTER SET utf8mb4")
 						.HasMaxLength(40);
 
 					b.HasKey("Id");
@@ -509,45 +513,45 @@ namespace Tgstation.Server.Host.Database.Migrations
 				{
 					b.Property<long>("Id")
 						.ValueGeneratedOnAdd()
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<string>("Author")
 						.IsRequired()
-						.HasColumnType("TEXT");
+						.HasColumnType("longtext CHARACTER SET utf8mb4");
 
 					b.Property<string>("BodyAtMerge")
 						.IsRequired()
-						.HasColumnType("TEXT");
+						.HasColumnType("longtext CHARACTER SET utf8mb4");
 
 					b.Property<string>("Comment")
-						.HasColumnType("TEXT")
+						.HasColumnType("longtext CHARACTER SET utf8mb4")
 						.HasMaxLength(10000);
 
 					b.Property<DateTimeOffset>("MergedAt")
-						.HasColumnType("TEXT");
+						.HasColumnType("datetime(6)");
 
 					b.Property<long>("MergedById")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<int>("Number")
-						.HasColumnType("INTEGER");
+						.HasColumnType("int");
 
 					b.Property<long?>("PrimaryRevisionInformationId")
 						.IsRequired()
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<string>("PullRequestRevision")
 						.IsRequired()
-						.HasColumnType("TEXT")
+						.HasColumnType("varchar(40) CHARACTER SET utf8mb4")
 						.HasMaxLength(40);
 
 					b.Property<string>("TitleAtMerge")
 						.IsRequired()
-						.HasColumnType("TEXT");
+						.HasColumnType("longtext CHARACTER SET utf8mb4");
 
 					b.Property<string>("Url")
 						.IsRequired()
-						.HasColumnType("TEXT");
+						.HasColumnType("longtext CHARACTER SET utf8mb4");
 
 					b.HasKey("Id");
 
@@ -563,42 +567,42 @@ namespace Tgstation.Server.Host.Database.Migrations
 				{
 					b.Property<long?>("Id")
 						.ValueGeneratedOnAdd()
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<ulong>("AdministrationRights")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint unsigned");
 
 					b.Property<string>("CanonicalName")
 						.IsRequired()
-						.HasColumnType("TEXT");
+						.HasColumnType("varchar(255) CHARACTER SET utf8mb4");
 
 					b.Property<DateTimeOffset?>("CreatedAt")
 						.IsRequired()
-						.HasColumnType("TEXT");
+						.HasColumnType("datetime(6)");
 
 					b.Property<long?>("CreatedById")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<bool?>("Enabled")
 						.IsRequired()
-						.HasColumnType("INTEGER");
+						.HasColumnType("tinyint(1)");
 
 					b.Property<ulong>("InstanceManagerRights")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint unsigned");
 
 					b.Property<DateTimeOffset?>("LastPasswordUpdate")
-						.HasColumnType("TEXT");
+						.HasColumnType("datetime(6)");
 
 					b.Property<string>("Name")
 						.IsRequired()
-						.HasColumnType("TEXT")
+						.HasColumnType("longtext CHARACTER SET utf8mb4")
 						.HasMaxLength(10000);
 
 					b.Property<string>("PasswordHash")
-						.HasColumnType("TEXT");
+						.HasColumnType("longtext CHARACTER SET utf8mb4");
 
 					b.Property<string>("SystemIdentifier")
-						.HasColumnType("TEXT");
+						.HasColumnType("varchar(255) CHARACTER SET utf8mb4");
 
 					b.HasKey("Id");
 
@@ -617,19 +621,19 @@ namespace Tgstation.Server.Host.Database.Migrations
 				{
 					b.Property<long>("Id")
 						.ValueGeneratedOnAdd()
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<long?>("AlphaId")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<bool>("AlphaIsActive")
-						.HasColumnType("INTEGER");
+						.HasColumnType("tinyint(1)");
 
 					b.Property<long?>("BravoId")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.Property<long>("InstanceId")
-						.HasColumnType("INTEGER");
+						.HasColumnType("bigint");
 
 					b.HasKey("Id");
 
@@ -666,13 +670,13 @@ namespace Tgstation.Server.Host.Database.Migrations
 					b.HasOne("Tgstation.Server.Host.Models.Job", "Job")
 						.WithOne()
 						.HasForeignKey("Tgstation.Server.Host.Models.CompileJob", "JobId")
-						.OnDelete(DeleteBehavior.Restrict)
+						.OnDelete(DeleteBehavior.Cascade)
 						.IsRequired();
 
 					b.HasOne("Tgstation.Server.Host.Models.RevisionInformation", "RevisionInformation")
 						.WithMany("CompileJobs")
 						.HasForeignKey("RevisionInformationId")
-						.OnDelete(DeleteBehavior.Cascade)
+						.OnDelete(DeleteBehavior.ClientNoAction)
 						.IsRequired();
 				});
 
@@ -757,7 +761,7 @@ namespace Tgstation.Server.Host.Database.Migrations
 					b.HasOne("Tgstation.Server.Host.Models.TestMerge", "TestMerge")
 						.WithMany("RevisonInformations")
 						.HasForeignKey("TestMergeId")
-						.OnDelete(DeleteBehavior.Cascade)
+						.OnDelete(DeleteBehavior.ClientNoAction)
 						.IsRequired();
 				});
 
@@ -781,7 +785,7 @@ namespace Tgstation.Server.Host.Database.Migrations
 					b.HasOne("Tgstation.Server.Host.Models.RevisionInformation", "PrimaryRevisionInformation")
 						.WithOne("PrimaryTestMerge")
 						.HasForeignKey("Tgstation.Server.Host.Models.TestMerge", "PrimaryRevisionInformationId")
-						.OnDelete(DeleteBehavior.Restrict)
+						.OnDelete(DeleteBehavior.Cascade)
 						.IsRequired();
 				});
 

src/Tgstation.Server.Host/Database/Migrations/20200427180159_MYFixCascadingDelete.cs

@@ -0,0 +1,119 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+using System;
+
+namespace Tgstation.Server.Host.Database.Migrations
+{
+	/// <summary>
+	/// Fix cascading data deletes for <see cref="Models.Instance"/>s on MYSQL.
+	/// </summary>
+	public partial class MYFixCascadingDelete : Migration
+	{
+		/// <inheritdoc />
+		protected override void Up(MigrationBuilder migrationBuilder)
+		{
+			if (migrationBuilder == null)
+				throw new ArgumentNullException(nameof(migrationBuilder));
+
+			migrationBuilder.DropForeignKey(
+				name: "FK_CompileJobs_Jobs_JobId",
+				table: "CompileJobs");
+
+			migrationBuilder.DropForeignKey(
+				name: "FK_CompileJobs_RevisionInformations_RevisionInformationId",
+				table: "CompileJobs");
+
+			migrationBuilder.DropForeignKey(
+				name: "FK_RevInfoTestMerges_TestMerges_TestMergeId",
+				table: "RevInfoTestMerges");
+
+			migrationBuilder.DropForeignKey(
+				name: "FK_TestMerges_RevisionInformations_PrimaryRevisionInformationId",
+				table: "TestMerges");
+
+			migrationBuilder.AddForeignKey(
+				name: "FK_CompileJobs_Jobs_JobId",
+				table: "CompileJobs",
+				column: "JobId",
+				principalTable: "Jobs",
+				principalColumn: "Id",
+				onDelete: ReferentialAction.Cascade);
+
+			migrationBuilder.AddForeignKey(
+				name: "FK_CompileJobs_RevisionInformations_RevisionInformationId",
+				table: "CompileJobs",
+				column: "RevisionInformationId",
+				principalTable: "RevisionInformations",
+				principalColumn: "Id");
+
+			migrationBuilder.AddForeignKey(
+				name: "FK_RevInfoTestMerges_TestMerges_TestMergeId",
+				table: "RevInfoTestMerges",
+				column: "TestMergeId",
+				principalTable: "TestMerges",
+				principalColumn: "Id");
+
+			migrationBuilder.AddForeignKey(
+				name: "FK_TestMerges_RevisionInformations_PrimaryRevisionInformationId",
+				table: "TestMerges",
+				column: "PrimaryRevisionInformationId",
+				principalTable: "RevisionInformations",
+				principalColumn: "Id",
+				onDelete: ReferentialAction.Cascade);
+		}
+
+		/// <inheritdoc />
+		protected override void Down(MigrationBuilder migrationBuilder)
+		{
+			if (migrationBuilder == null)
+				throw new ArgumentNullException(nameof(migrationBuilder));
+
+			migrationBuilder.DropForeignKey(
+				name: "FK_CompileJobs_Jobs_JobId",
+				table: "CompileJobs");
+
+			migrationBuilder.DropForeignKey(
+				name: "FK_CompileJobs_RevisionInformations_RevisionInformationId",
+				table: "CompileJobs");
+
+			migrationBuilder.DropForeignKey(
+				name: "FK_RevInfoTestMerges_TestMerges_TestMergeId",
+				table: "RevInfoTestMerges");
+
+			migrationBuilder.DropForeignKey(
+				name: "FK_TestMerges_RevisionInformations_PrimaryRevisionInformationId",
+				table: "TestMerges");
+
+			migrationBuilder.AddForeignKey(
+				name: "FK_CompileJobs_Jobs_JobId",
+				table: "CompileJobs",
+				column: "JobId",
+				principalTable: "Jobs",
+				principalColumn: "Id",
+				onDelete: ReferentialAction.Restrict);
+
+			migrationBuilder.AddForeignKey(
+				name: "FK_CompileJobs_RevisionInformations_RevisionInformationId",
+				table: "CompileJobs",
+				column: "RevisionInformationId",
+				principalTable: "RevisionInformations",
+				principalColumn: "Id",
+				onDelete: ReferentialAction.Cascade);
+
+			migrationBuilder.AddForeignKey(
+				name: "FK_RevInfoTestMerges_TestMerges_TestMergeId",
+				table: "RevInfoTestMerges",
+				column: "TestMergeId",
+				principalTable: "TestMerges",
+				principalColumn: "Id",
+				onDelete: ReferentialAction.Cascade);
+
+			migrationBuilder.AddForeignKey(
+				name: "FK_TestMerges_RevisionInformations_PrimaryRevisionInformationId",
+				table: "TestMerges",
+				column: "PrimaryRevisionInformationId",
+				principalTable: "RevisionInformations",
+				principalColumn: "Id",
+				onDelete: ReferentialAction.Restrict);
+		}
+	}
+}

src/Tgstation.Server.Host/Database/Migrations/20200427180904_SLRebuild.Designer.cs

@@ -7,8 +7,8 @@ using Microsoft.EntityFrameworkCore.Migrations;
 namespace Tgstation.Server.Host.Database.Migrations
 {
 	[DbContext(typeof(SqliteDatabaseContext))]
-	[Migration("20200425024539_SLAddJobErrorCodes")]
-	partial class SLAddJobErrorCodes
+	[Migration("20200427180904_SLRebuild")]
+	partial class SLRebuild
 	{
 		/// <inheritdoc />
 		protected override void BuildTargetModel(ModelBuilder modelBuilder)
@@ -669,13 +669,13 @@ namespace Tgstation.Server.Host.Database.Migrations
 					b.HasOne("Tgstation.Server.Host.Models.Job", "Job")
 						.WithOne()
 						.HasForeignKey("Tgstation.Server.Host.Models.CompileJob", "JobId")
-						.OnDelete(DeleteBehavior.Restrict)
+						.OnDelete(DeleteBehavior.Cascade)
 						.IsRequired();
 
 					b.HasOne("Tgstation.Server.Host.Models.RevisionInformation", "RevisionInformation")
 						.WithMany("CompileJobs")
 						.HasForeignKey("RevisionInformationId")
-						.OnDelete(DeleteBehavior.Cascade)
+						.OnDelete(DeleteBehavior.ClientNoAction)
 						.IsRequired();
 				});
 
@@ -760,7 +760,7 @@ namespace Tgstation.Server.Host.Database.Migrations
 					b.HasOne("Tgstation.Server.Host.Models.TestMerge", "TestMerge")
 						.WithMany("RevisonInformations")
 						.HasForeignKey("TestMergeId")
-						.OnDelete(DeleteBehavior.Cascade)
+						.OnDelete(DeleteBehavior.ClientNoAction)
 						.IsRequired();
 				});
 
@@ -784,7 +784,7 @@ namespace Tgstation.Server.Host.Database.Migrations
 					b.HasOne("Tgstation.Server.Host.Models.RevisionInformation", "PrimaryRevisionInformation")
 						.WithOne("PrimaryTestMerge")
 						.HasForeignKey("Tgstation.Server.Host.Models.TestMerge", "PrimaryRevisionInformationId")
-						.OnDelete(DeleteBehavior.Restrict)
+						.OnDelete(DeleteBehavior.Cascade)
 						.IsRequired();
 				});
 

src/Tgstation.Server.Host/Database/Migrations/20200427180904_SLRebuild.cs

@@ -1,9 +1,6 @@
 using System;
 using Microsoft.EntityFrameworkCore.Migrations;
 
-#pragma warning disable CA1502
-#pragma warning disable CA1506
-
 namespace Tgstation.Server.Host.Database.Migrations
 {
 	/// <summary>
@@ -228,6 +225,7 @@ namespace Tgstation.Server.Host.Database.Migrations
 					Id = table.Column<long>(nullable: false)
 						.Annotation("Sqlite:Autoincrement", true),
 					Description = table.Column<string>(nullable: false),
+					ErrorCode = table.Column<uint>(nullable: true),
 					ExceptionDetails = table.Column<string>(nullable: true),
 					StartedAt = table.Column<DateTimeOffset>(nullable: false),
 					StoppedAt = table.Column<DateTimeOffset>(nullable: true),
@@ -317,7 +315,7 @@ namespace Tgstation.Server.Host.Database.Migrations
 						column: x => x.PrimaryRevisionInformationId,
 						principalTable: "RevisionInformations",
 						principalColumn: "Id",
-						onDelete: ReferentialAction.Restrict);
+						onDelete: ReferentialAction.Cascade);
 				});
 
 			migrationBuilder.CreateTable(
@@ -345,13 +343,12 @@ namespace Tgstation.Server.Host.Database.Migrations
 						column: x => x.JobId,
 						principalTable: "Jobs",
 						principalColumn: "Id",
-						onDelete: ReferentialAction.Restrict);
+						onDelete: ReferentialAction.Cascade);
 					table.ForeignKey(
 						name: "FK_CompileJobs_RevisionInformations_RevisionInformationId",
 						column: x => x.RevisionInformationId,
 						principalTable: "RevisionInformations",
-						principalColumn: "Id",
-						onDelete: ReferentialAction.Cascade);
+						principalColumn: "Id");
 				});
 
 			migrationBuilder.CreateTable(
@@ -376,8 +373,7 @@ namespace Tgstation.Server.Host.Database.Migrations
 						name: "FK_RevInfoTestMerges_TestMerges_TestMergeId",
 						column: x => x.TestMergeId,
 						principalTable: "TestMerges",
-						principalColumn: "Id",
-						onDelete: ReferentialAction.Cascade);
+						principalColumn: "Id");
 				});
 
 			migrationBuilder.CreateTable(

src/Tgstation.Server.Host/Database/Migrations/MySqlDatabaseContextModelSnapshot.cs

@@ -3,7 +3,7 @@ using System;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Infrastructure;
 
-namespace Tgstation.Server.Host.Database
+namespace Tgstation.Server.Host.Database.Migrations
 {
 	[DbContext(typeof(MySqlDatabaseContext))]
 	partial class MySqlDatabaseContextModelSnapshot : ModelSnapshot
@@ -667,13 +667,13 @@ namespace Tgstation.Server.Host.Database
 					b.HasOne("Tgstation.Server.Host.Models.Job", "Job")
 						.WithOne()
 						.HasForeignKey("Tgstation.Server.Host.Models.CompileJob", "JobId")
-						.OnDelete(DeleteBehavior.Restrict)
+						.OnDelete(DeleteBehavior.Cascade)
 						.IsRequired();
 
 					b.HasOne("Tgstation.Server.Host.Models.RevisionInformation", "RevisionInformation")
 						.WithMany("CompileJobs")
 						.HasForeignKey("RevisionInformationId")
-						.OnDelete(DeleteBehavior.Cascade)
+						.OnDelete(DeleteBehavior.ClientNoAction)
 						.IsRequired();
 				});
 
@@ -758,7 +758,7 @@ namespace Tgstation.Server.Host.Database
 					b.HasOne("Tgstation.Server.Host.Models.TestMerge", "TestMerge")
 						.WithMany("RevisonInformations")
 						.HasForeignKey("TestMergeId")
-						.OnDelete(DeleteBehavior.Cascade)
+						.OnDelete(DeleteBehavior.ClientNoAction)
 						.IsRequired();
 				});
 
@@ -782,7 +782,7 @@ namespace Tgstation.Server.Host.Database
 					b.HasOne("Tgstation.Server.Host.Models.RevisionInformation", "PrimaryRevisionInformation")
 						.WithOne("PrimaryTestMerge")
 						.HasForeignKey("Tgstation.Server.Host.Models.TestMerge", "PrimaryRevisionInformationId")
-						.OnDelete(DeleteBehavior.Restrict)
+						.OnDelete(DeleteBehavior.Cascade)
 						.IsRequired();
 				});
 

src/Tgstation.Server.Host/Database/Migrations/SqlServerDatabaseContextModelSnapshot.cs

@@ -679,13 +679,13 @@ namespace Tgstation.Server.Host.Database.Migrations
 					b.HasOne("Tgstation.Server.Host.Models.Job", "Job")
 						.WithOne()
 						.HasForeignKey("Tgstation.Server.Host.Models.CompileJob", "JobId")
-						.OnDelete(DeleteBehavior.Restrict)
+						.OnDelete(DeleteBehavior.Cascade)
 						.IsRequired();
 
 					b.HasOne("Tgstation.Server.Host.Models.RevisionInformation", "RevisionInformation")
 						.WithMany("CompileJobs")
 						.HasForeignKey("RevisionInformationId")
-						.OnDelete(DeleteBehavior.Cascade)
+						.OnDelete(DeleteBehavior.ClientNoAction)
 						.IsRequired();
 				});
 
@@ -770,7 +770,7 @@ namespace Tgstation.Server.Host.Database.Migrations
 					b.HasOne("Tgstation.Server.Host.Models.TestMerge", "TestMerge")
 						.WithMany("RevisonInformations")
 						.HasForeignKey("TestMergeId")
-						.OnDelete(DeleteBehavior.Cascade)
+						.OnDelete(DeleteBehavior.ClientNoAction)
 						.IsRequired();
 				});
 
@@ -794,7 +794,7 @@ namespace Tgstation.Server.Host.Database.Migrations
 					b.HasOne("Tgstation.Server.Host.Models.RevisionInformation", "PrimaryRevisionInformation")
 						.WithOne("PrimaryTestMerge")
 						.HasForeignKey("Tgstation.Server.Host.Models.TestMerge", "PrimaryRevisionInformationId")
-						.OnDelete(DeleteBehavior.Restrict)
+						.OnDelete(DeleteBehavior.Cascade)
 						.IsRequired();
 				});
 

src/Tgstation.Server.Host/Database/Migrations/SqliteDatabaseContextModelSnapshot.cs

@@ -666,13 +666,13 @@ namespace Tgstation.Server.Host.Database.Migrations
 					b.HasOne("Tgstation.Server.Host.Models.Job", "Job")
 						.WithOne()
 						.HasForeignKey("Tgstation.Server.Host.Models.CompileJob", "JobId")
-						.OnDelete(DeleteBehavior.Restrict)
+						.OnDelete(DeleteBehavior.Cascade)
 						.IsRequired();
 
 					b.HasOne("Tgstation.Server.Host.Models.RevisionInformation", "RevisionInformation")
 						.WithMany("CompileJobs")
 						.HasForeignKey("RevisionInformationId")
-						.OnDelete(DeleteBehavior.Cascade)
+						.OnDelete(DeleteBehavior.ClientNoAction)
 						.IsRequired();
 				});
 
@@ -757,7 +757,7 @@ namespace Tgstation.Server.Host.Database.Migrations
 					b.HasOne("Tgstation.Server.Host.Models.TestMerge", "TestMerge")
 						.WithMany("RevisonInformations")
 						.HasForeignKey("TestMergeId")
-						.OnDelete(DeleteBehavior.Cascade)
+						.OnDelete(DeleteBehavior.ClientNoAction)
 						.IsRequired();
 				});
 
@@ -781,7 +781,7 @@ namespace Tgstation.Server.Host.Database.Migrations
 					b.HasOne("Tgstation.Server.Host.Models.RevisionInformation", "PrimaryRevisionInformation")
 						.WithOne("PrimaryTestMerge")
 						.HasForeignKey("Tgstation.Server.Host.Models.TestMerge", "PrimaryRevisionInformationId")
-						.OnDelete(DeleteBehavior.Restrict)
+						.OnDelete(DeleteBehavior.Cascade)
 						.IsRequired();
 				});