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-rw-r--r--MediaBrowser.Controller/Library/ILibraryManager.cs8
-rw-r--r--MediaBrowser.Controller/Persistence/ILinkedChildrenService.cs9
2 files changed, 17 insertions, 0 deletions
diff --git a/MediaBrowser.Controller/Library/ILibraryManager.cs b/MediaBrowser.Controller/Library/ILibraryManager.cs
index 5eae6e103f..ca686fbd9d 100644
--- a/MediaBrowser.Controller/Library/ILibraryManager.cs
+++ b/MediaBrowser.Controller/Library/ILibraryManager.cs
@@ -256,6 +256,14 @@ namespace MediaBrowser.Controller.Library
IEnumerable<Video> GetLinkedAlternateVersions(Video video);
/// <summary>
+ /// Gets, in a single query, the subset of the supplied items that own at least one alternate
+ /// version (local or linked). Items absent from the result have no alternate versions.
+ /// </summary>
+ /// <param name="itemIds">The item IDs to check.</param>
+ /// <returns>The set of item IDs that have alternate versions.</returns>
+ IReadOnlySet<Guid> GetItemIdsWithAlternateVersions(IReadOnlyList<Guid> itemIds);
+
+ /// <summary>
/// Creates or updates a LinkedChild entry linking a parent to a child item.
/// </summary>
/// <param name="parentId">The parent item ID.</param>
diff --git a/MediaBrowser.Controller/Persistence/ILinkedChildrenService.cs b/MediaBrowser.Controller/Persistence/ILinkedChildrenService.cs
index a4614fc125..79c29410e4 100644
--- a/MediaBrowser.Controller/Persistence/ILinkedChildrenService.cs
+++ b/MediaBrowser.Controller/Persistence/ILinkedChildrenService.cs
@@ -20,6 +20,15 @@ public interface ILinkedChildrenService
IReadOnlyList<Guid> GetLinkedChildrenIds(Guid parentId, int? childType = null);
/// <summary>
+ /// Gets, in a single query, the subset of the supplied items that own at least one alternate
+ /// version (local or linked). Items absent from the result have no alternate versions, so their
+ /// media source count is one.
+ /// </summary>
+ /// <param name="itemIds">The item IDs to check.</param>
+ /// <returns>The set of item IDs that have alternate versions.</returns>
+ IReadOnlySet<Guid> GetItemIdsWithAlternateVersions(IReadOnlyList<Guid> itemIds);
+
+ /// <summary>
/// Gets all artist matches from the database.
/// </summary>
/// <param name="artistNames">The names of the artists.</param>