Folders: Set FullPath and FullPathUIDs when feature flag is off and query requests (#81896)

* set FullPath and FullPathUIDs if feature flag is off and query requests

Co-authored-by: Sofia Papagiannaki <1632407+papagian@users.noreply.github.com>

pkg/services/folder/folderimpl/folder.go

@@ -148,11 +148,29 @@ func (s *Service) GetFolders(ctx context.Context, q folder.GetFoldersQuery) ([]*
 		}
 	}
 
+	if !s.features.IsEnabled(ctx, featuremgmt.FlagNestedFolders) {
+		qry.WithFullpath = false // do not request full path if nested folders are disabled
+		qry.WithFullpathUIDs = false
+	}
+
 	dashFolders, err := s.store.GetFolders(ctx, qry)
 	if err != nil {
 		return nil, folder.ErrInternal.Errorf("failed to fetch subfolders: %w", err)
 	}
 
+	if !s.features.IsEnabled(ctx, featuremgmt.FlagNestedFolders) {
+		if q.WithFullpathUIDs || q.WithFullpath {
+			for _, f := range dashFolders { // and fix the full path with folder title (unescaped)
+				if q.WithFullpath {
+					f.Fullpath = f.Title
+				}
+				if q.WithFullpathUIDs {
+					f.FullpathUIDs = f.UID
+				}
+			}
+		}
+	}
+
 	return dashFolders, nil
 }