Fix only returning one item from /Item/Latest api. (#12492)

* Updated to EFcore

* Remove unused using

* Dont use DateCreated not from episode type or music type

* use TranslateQuery to filter out instead and then do the grouping and retrival of min and max datecreated instead

* Album also

2 files changed, 30 insertions, 0 deletions

diff --git a/Emby.Server.Implementations/Library/LibraryManager.cs b/Emby.Server.Implementations/Library/LibraryManager.cs
index 27f682668..eb8e31072 100644
--- a/Emby.Server.Implementations/Library/LibraryManager.cs
+++ b/Emby.Server.Implementations/Library/LibraryManager.cs
@@ -1364,6 +1364,21 @@ namespace Emby.Server.Implementations.Library
             return _itemRepository.GetItemList(query);
         }
 
+        public IReadOnlyList<BaseItem> GetLatestItemList(InternalItemsQuery query, IReadOnlyList<BaseItem> parents, CollectionType collectionType)
+        {
+            SetTopParentIdsOrAncestors(query, parents);
+
+            if (query.AncestorIds.Length == 0 && query.TopParentIds.Length == 0)
+            {
+                if (query.User is not null)
+                {
+                    AddUserToQuery(query, query.User);
+                }
+            }
+
+            return _itemRepository.GetLatestItemList(query, collectionType);
+        }
+
         public IReadOnlyList<string> GetNextUpSeriesKeys(InternalItemsQuery query, IReadOnlyCollection<BaseItem> parents, DateTime dateCutoff)
         {
             SetTopParentIdsOrAncestors(query, parents);
diff --git a/Emby.Server.Implementations/Library/UserViewManager.cs b/Emby.Server.Implementations/Library/UserViewManager.cs
index 5a9315a92..87214c273 100644
--- a/Emby.Server.Implementations/Library/UserViewManager.cs
+++ b/Emby.Server.Implementations/Library/UserViewManager.cs
@@ -372,6 +372,21 @@ namespace Emby.Server.Implementations.Library
                 MediaTypes = mediaTypes
             };
 
+            if (request.GroupItems)
+            {
+                if (parents.OfType<ICollectionFolder>().All(i => i.CollectionType == CollectionType.tvshows))
+                {
+                    query.Limit = limit;
+                    return _libraryManager.GetLatestItemList(query, parents, CollectionType.tvshows);
+                }
+
+                if (parents.OfType<ICollectionFolder>().All(i => i.CollectionType == CollectionType.music))
+                {
+                    query.Limit = limit;
+                    return _libraryManager.GetLatestItemList(query, parents, CollectionType.music);
+                }
+            }
+
             return _libraryManager.GetItemList(query, parents);
         }
     }