Rename GroupHierarchy into ObjectHierarchy

- we now use the hierarchy class also for epics
- also rename supports_nested_groups? into supports_nested_objects?
  - move it to a concern

2 files changed, 3 insertions, 3 deletions

diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 6f0dc2a3a20..140a625d333 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -403,7 +403,7 @@ class ApplicationController < ActionController::Base
   end
 
   def manifest_import_enabled?
-    Group.supports_nested_groups? && Gitlab::CurrentSettings.import_sources.include?('manifest')
+    Group.supports_nested_objects? && Gitlab::CurrentSettings.import_sources.include?('manifest')
   end
 
   # U2F (universal 2nd factor) devices need a unique identifier for the application
diff --git a/app/controllers/concerns/group_tree.rb b/app/controllers/concerns/group_tree.rb
index 4f56346832c..e9a7d6a3152 100644
--- a/app/controllers/concerns/group_tree.rb
+++ b/app/controllers/concerns/group_tree.rb
@@ -32,14 +32,14 @@ module GroupTree
   def filtered_groups_with_ancestors(groups)
     filtered_groups = groups.search(params[:filter]).page(params[:page])
 
-    if Group.supports_nested_groups?
+    if Group.supports_nested_objects?
       # We find the ancestors by ID of the search results here.
       # Otherwise the ancestors would also have filters applied,
       # which would cause them not to be preloaded.
       #
       # Pagination needs to be applied before loading the ancestors to
       # make sure ancestors are not cut off by pagination.
-      Gitlab::GroupHierarchy.new(Group.where(id: filtered_groups.select(:id)))
+      Gitlab::ObjectHierarchy.new(Group.where(id: filtered_groups.select(:id)))
         .base_and_ancestors
     else
       filtered_groups