Cleanup naming specs if there is more than one

Fixed: Rare scenario where settings wouldn't load due to data issue

src/NzbDrone.Core.Test/Housekeeping/Housekeepers/CleanupAdditionalNamingSpecsFixture.cs

@@ -0,0 +1,37 @@
+using FizzWare.NBuilder;
+using FluentAssertions;
+using NUnit.Framework;
+using NzbDrone.Core.Housekeeping.Housekeepers;
+using NzbDrone.Core.Organizer;
+using NzbDrone.Core.Test.Framework;
+
+namespace NzbDrone.Core.Test.Housekeeping.Housekeepers
+{
+    [TestFixture]
+    public class CleanupAdditionalNamingSpecsFixture : DbTest<CleanupAdditionalNamingSpecs, History.History>
+    {
+        [Test]
+        public void should_delete_additional_naming_configs()
+        {
+            var specs = Builder<NamingConfig>.CreateListOfSize(5)
+                                             .BuildListOfNew();
+
+            Db.InsertMany(specs);
+
+            Subject.Clean();
+            AllStoredModels.Should().HaveCount(1);
+        }
+
+        [Test]
+        public void should_not_delete_if_only_one_spec()
+        {
+            var spec = Builder<NamingConfig>.CreateNew()
+                                             .BuildNew();
+
+            Db.Insert(spec);
+
+            Subject.Clean();
+            AllStoredModels.Should().HaveCount(1);
+        }
+    }
+}

src/NzbDrone.Core/Housekeeping/Housekeepers/CleanupAdditionalNamingSpecs.cs

@@ -0,0 +1,29 @@
+using NLog;
+using NzbDrone.Core.Datastore;
+
+namespace NzbDrone.Core.Housekeeping.Housekeepers
+{
+    public class CleanupAdditionalNamingSpecs : IHousekeepingTask
+    {
+        private readonly IDatabase _database;
+        private readonly Logger _logger;
+
+        public CleanupAdditionalNamingSpecs(IDatabase database, Logger logger)
+        {
+            _database = database;
+            _logger = logger;
+        }
+
+        public void Clean()
+        {
+            _logger.Trace("Running naming spec cleanup");
+
+            var mapper = _database.GetDataMapper();
+
+            mapper.ExecuteNonQuery(@"DELETE FROM NamingConfig
+                                     WHERE ID NOT IN (
+                                     SELECT ID FROM NamingConfig
+                                     LIMIT 1)");
+        }
+    }
+}

src/NzbDrone.Core/Housekeeping/Housekeepers/CleanupOrphanedEpisodes.cs

@@ -1,6 +1,5 @@
 using NLog;
 using NzbDrone.Core.Datastore;
-using NzbDrone.Core.Tv;
 
 namespace NzbDrone.Core.Housekeeping.Housekeepers
 {

src/NzbDrone.Core/Housekeeping/Housekeepers/CleanupOrphanedHistoryItems.cs

@@ -1,6 +1,5 @@
 using NLog;
 using NzbDrone.Core.Datastore;
-using NzbDrone.Core.History;
 
 namespace NzbDrone.Core.Housekeeping.Housekeepers
 {