From 88965f75e28fda4c137223476b4f0dac84967a97 Mon Sep 17 00:00:00 2001
From: Luke Pulverenti <luke.pulverenti@gmail.com>
Date: Wed, 26 Feb 2014 21:44:16 -0500
Subject: [PATCH] stop searching for dead shortcuts over and over

---
 MediaBrowser.Controller/Entities/Folder.cs    | 21 +++++++++++++++++--
 .../Entities/LinkedChild.cs                   |  2 +-
 2 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/MediaBrowser.Controller/Entities/Folder.cs b/MediaBrowser.Controller/Entities/Folder.cs
index 7ae2304c4b..522bc3a2d7 100644
--- a/MediaBrowser.Controller/Entities/Folder.cs
+++ b/MediaBrowser.Controller/Entities/Folder.cs
@@ -893,9 +893,14 @@ namespace MediaBrowser.Controller.Entities
             BaseItem item = null;
 
             // First get using the cached Id
-            if (info.ItemId != Guid.Empty)
+            if (info.ItemId.HasValue)
             {
-                item = LibraryManager.GetItemById(info.ItemId);
+                if (info.ItemId.Value == Guid.Empty)
+                {
+                    return null;
+                }
+
+                item = LibraryManager.GetItemById(info.ItemId.Value);
             }
 
             // If still null, search by path
@@ -908,6 +913,9 @@ namespace MediaBrowser.Controller.Entities
             if (item == null)
             {
                 Logger.Warn("Unable to find linked item at {0}", info.Path);
+
+                // Don't keep searching over and over
+                info.ItemId = Guid.Empty;
             }
             else
             {
@@ -985,6 +993,15 @@ namespace MediaBrowser.Controller.Entities
                 return true;
             }
 
+            foreach (var child in LinkedChildren)
+            {
+                // Reset the cached value
+                if (child.ItemId.HasValue && child.ItemId.Value == Guid.Empty)
+                {
+                    child.ItemId = null;
+                }
+            }
+
             return false;
         }
 
diff --git a/MediaBrowser.Controller/Entities/LinkedChild.cs b/MediaBrowser.Controller/Entities/LinkedChild.cs
index e01d55c68d..cc5f7bf38c 100644
--- a/MediaBrowser.Controller/Entities/LinkedChild.cs
+++ b/MediaBrowser.Controller/Entities/LinkedChild.cs
@@ -13,7 +13,7 @@ namespace MediaBrowser.Controller.Entities
         /// Serves as a cache
         /// </summary>
         [IgnoreDataMember]
-        public Guid ItemId { get; set; }
+        public Guid? ItemId { get; set; }
     }
 
     public enum LinkedChildType