Avoid N+1 queries in breadcrumbs

app/helpers/groups_helper.rb

@@ -120,7 +120,9 @@ module GroupsHelper
     @has_group_title = true
     full_title = []
 
-    group.ancestors.reverse.each_with_index do |parent, index|
+    ancestors = group.ancestors.with_route
+
+    ancestors.reverse_each.with_index do |parent, index|
       if index > 0
         add_to_breadcrumb_dropdown(group_title_link(parent, hidable: false, show_avatar: true, for_dropdown: true), location: :before)
       else

changelogs/unreleased/326212-controller-projects-hookscontroller-index-executes-more-than-100-s.yml

+---
+title: Avoid N+1 queries in breadcrumbs
+merge_request: 57725
+author:
+type: performance

spec/helpers/groups_helper_spec.rb

@@ -109,6 +109,16 @@ RSpec.describe GroupsHelper do
 
       subject
     end
+
+    it 'avoids N+1 queries' do
+      control_count = ActiveRecord::QueryRecorder.new do
+        helper.group_title(nested_group)
+      end
+
+      expect do
+        helper.group_title(very_deep_nested_group)
+      end.not_to exceed_query_limit(control_count)
+    end
   end
 
   describe '#share_with_group_lock_help_text' do