Merge branch 'jellyfin:master' into master

3 files changed, 9 insertions, 10 deletions

diff --git a/MediaBrowser.Controller/Entities/Folder.cs b/MediaBrowser.Controller/Entities/Folder.cs
index b6983b73ee..1860da4c79 100644
--- a/MediaBrowser.Controller/Entities/Folder.cs
+++ b/MediaBrowser.Controller/Entities/Folder.cs
@@ -860,7 +860,7 @@ namespace MediaBrowser.Controller.Entities
                 return true;
             }
 
-            if (!string.IsNullOrEmpty(query.AdjacentTo))
+            if (query.AdjacentTo.HasValue && !query.AdjacentTo.Value.Equals(default))
             {
                 Logger.LogDebug("Query requires post-filtering due to AdjacentTo");
                 return true;
@@ -1029,9 +1029,9 @@ namespace MediaBrowser.Controller.Entities
             #pragma warning restore CA1309
 
             // This must be the last filter
-            if (!string.IsNullOrEmpty(query.AdjacentTo))
+            if (query.AdjacentTo.HasValue && !query.AdjacentTo.Value.Equals(default))
             {
-                items = UserViewBuilder.FilterForAdjacency(items.ToList(), query.AdjacentTo);
+                items = UserViewBuilder.FilterForAdjacency(items.ToList(), query.AdjacentTo.Value);
             }
 
             return UserViewBuilder.SortAndPage(items, null, query, LibraryManager, enableSorting);
diff --git a/MediaBrowser.Controller/Entities/InternalItemsQuery.cs b/MediaBrowser.Controller/Entities/InternalItemsQuery.cs
index db1697c790..13bfd07c34 100644
--- a/MediaBrowser.Controller/Entities/InternalItemsQuery.cs
+++ b/MediaBrowser.Controller/Entities/InternalItemsQuery.cs
@@ -129,7 +129,7 @@ namespace MediaBrowser.Controller.Entities
 
         public Guid[] ExcludeItemIds { get; set; }
 
-        public string? AdjacentTo { get; set; }
+        public Guid? AdjacentTo { get; set; }
 
         public string[] PersonTypes { get; set; }
 
diff --git a/MediaBrowser.Controller/Entities/UserViewBuilder.cs b/MediaBrowser.Controller/Entities/UserViewBuilder.cs
index 2996104e70..f467a60384 100644
--- a/MediaBrowser.Controller/Entities/UserViewBuilder.cs
+++ b/MediaBrowser.Controller/Entities/UserViewBuilder.cs
@@ -433,9 +433,9 @@ namespace MediaBrowser.Controller.Entities
             var user = query.User;
 
             // This must be the last filter
-            if (!string.IsNullOrEmpty(query.AdjacentTo))
+            if (query.AdjacentTo.HasValue && !query.AdjacentTo.Value.Equals(default))
             {
-                items = FilterForAdjacency(items.ToList(), query.AdjacentTo);
+                items = FilterForAdjacency(items.ToList(), query.AdjacentTo.Value);
             }
 
             return SortAndPage(items, totalRecordLimit, query, libraryManager, true);
@@ -985,10 +985,9 @@ namespace MediaBrowser.Controller.Entities
             return _userViewManager.GetUserSubView(parent.Id, type, localizationKey, sortName);
         }
 
-        public static IEnumerable<BaseItem> FilterForAdjacency(List<BaseItem> list, string adjacentToId)
+        public static IEnumerable<BaseItem> FilterForAdjacency(List<BaseItem> list, Guid adjacentTo)
         {
-            var adjacentToIdGuid = new Guid(adjacentToId);
-            var adjacentToItem = list.FirstOrDefault(i => i.Id.Equals(adjacentToIdGuid));
+            var adjacentToItem = list.FirstOrDefault(i => i.Id.Equals(adjacentTo));
 
             var index = list.IndexOf(adjacentToItem);
 
@@ -1005,7 +1004,7 @@ namespace MediaBrowser.Controller.Entities
                 nextId = list[index + 1].Id;
             }
 
-            return list.Where(i => i.Id.Equals(previousId) || i.Id.Equals(nextId) || i.Id.Equals(adjacentToIdGuid));
+            return list.Where(i => i.Id.Equals(previousId) || i.Id.Equals(nextId) || i.Id.Equals(adjacentTo));
         }
     }
 }