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Drop linked alternate versions pointing at owned items in migration

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Shadowghost
2026-06-05 19:40:39 +02:00
parent 53f02a04ef
commit 40afd403a6
1 changed files with 29 additions and 0 deletions
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29
Jellyfin.Server/Migrations/Routines/20260113120000_MigrateLinkedChildren.cs
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@@ -223,6 +223,35 @@ internal class MigrateLinkedChildren : IDatabaseMigrationRoutine
toInsert = toInsert.Where(lc => existingChildIds.Contains(lc.ChildId)).ToList(); toInsert = toInsert.Where(lc => existingChildIds.Contains(lc.ChildId)).ToList();
// Drop linked (user-merged) entries that point at items the parent owns (local
// file-based alternates or extras). These stem from legacy data that merged an
// owned item onto its own primary and would wrongly mark server-merged groups
// as user-merged (splittable).
var linkedChildIds = toInsert
.Where(lc => lc.ChildType == LinkedChildType.LinkedAlternateVersion)
.Select(lc => lc.ChildId)
.Distinct()
.ToList();
if (linkedChildIds.Count > 0)
{
var ownerIdByChildId = context.BaseItems
.WhereOneOrMany(linkedChildIds, b => b.Id)
.Where(b => b.OwnerId.HasValue)
.Select(b => new { b.Id, b.OwnerId })
.ToDictionary(b => b.Id, b => b.OwnerId!.Value);
var removedCount = toInsert.RemoveAll(lc =>
lc.ChildType == LinkedChildType.LinkedAlternateVersion
&& ownerIdByChildId.TryGetValue(lc.ChildId, out var ownerId)
&& ownerId.Equals(lc.ParentId));
if (removedCount > 0)
{
_logger.LogInformation("Skipped {Count} LinkedAlternateVersion records pointing at items owned by their parent.", removedCount);
}
}
context.LinkedChildren.AddRange(toInsert); context.LinkedChildren.AddRange(toInsert);
context.SaveChanges(); context.SaveChanges();