Added cleanup job for search history

New: Search History cleanup job will only keep the last week of results

NzbDrone.Core/Jobs/SearchHistoryCleanupJob.cs

@@ -0,0 +1,45 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Ninject;
+using NLog;
+using NzbDrone.Core.Helpers;
+using NzbDrone.Core.Model.Notification;
+using NzbDrone.Core.Providers;
+using NzbDrone.Core.Providers.Core;
+using NzbDrone.Core.Repository;
+
+namespace NzbDrone.Core.Jobs
+{
+    public class SearchHistoryCleanupJob : IJob
+    {
+        private readonly SearchHistoryProvider _searchHistoryProvider;
+        private static readonly Logger Logger = LogManager.GetCurrentClassLogger();
+
+        [Inject]
+        public SearchHistoryCleanupJob(SearchHistoryProvider searchHistoryProvider)
+        {
+            _searchHistoryProvider = searchHistoryProvider;
+        }
+
+        public SearchHistoryCleanupJob()
+        {
+        }
+
+        public string Name
+        {
+            get { return "Search History Cleanup"; }
+        }
+
+        public TimeSpan DefaultInterval
+        {
+            get { return TimeSpan.FromHours(24); }
+        }
+
+        public virtual void Start(ProgressNotification notification, int targetId, int secondaryTargetId)
+        {
+            Logger.Info("Running search history cleanup.");
+            _searchHistoryProvider.Cleanup();
+        }
+    }
+}