Record histori is working

DiunaBI.API/Controllers/LayersController.cs

@@ -994,20 +994,35 @@ public class LayersController : Controller
         try
         {
             // Get the most recent "Deleted" history entry for each unique RecordId in this layer
-            var deletedRecords = _db.RecordHistory
+            // First, get all deleted record history entries
-                .Include(h => h.ChangedBy)
+            var deletedHistoryEntries = _db.RecordHistory
                 .Where(h => h.LayerId == layerId && h.ChangeType == RecordChangeType.Deleted)
+                .ToList();
+
+            // Group in memory and get the most recent deletion for each record
+            var mostRecentDeletes = deletedHistoryEntries
                 .GroupBy(h => h.RecordId)
-                .Select(g => g.OrderByDescending(h => h.ChangedAt).FirstOrDefault())
+                .Select(g => g.OrderByDescending(h => h.ChangedAt).First())
-                .Where(h => h != null)
+                .ToList();
+
+            // Get all unique user IDs from the history entries
+            var userIds = mostRecentDeletes.Select(h => h.ChangedById).Distinct().ToList();
+
+            // Load the users
+            var users = _db.Users
+                .Where(u => userIds.Contains(u.Id))
+                .ToDictionary(u => u.Id, u => u.UserName ?? string.Empty);
+
+            // Build the DTOs
+            var deletedRecords = mostRecentDeletes
                 .Select(h => new DeletedRecordDto
                 {
-                    RecordId = h!.RecordId,
+                    RecordId = h.RecordId,
                     Code = h.Code,
                     Desc1 = h.Desc1,
                     DeletedAt = h.ChangedAt,
                     DeletedById = h.ChangedById,
-                    DeletedByName = h.ChangedBy != null ? h.ChangedBy.UserName ?? string.Empty : string.Empty
+                    DeletedByName = users.TryGetValue(h.ChangedById, out var userName) ? userName : string.Empty
                 })
                 .OrderByDescending(d => d.DeletedAt)
                 .ToList();