CE port of "List groups with developer maintainer access on project creation"

app/helpers/namespaces_helper.rb

@@ -3,11 +3,10 @@ module NamespacesHelper
     params.dig(:project, :namespace_id) || params[:namespace_id]
   end
 
-  def namespaces_options(selected = :current_user, display_path: false, extra_group: nil, groups_only: false)
-    groups = current_user.manageable_groups
-               .joins(:route)
-               .includes(:route)
-               .order('routes.path')
+  def namespaces_options(selected = :current_user, display_path: false, groups: nil, extra_group: nil, groups_only: false)
+    groups ||= current_user.manageable_groups
+                 .eager_load(:route)
+                 .order('routes.path')
     users = [current_user.namespace]
     selected_id = selected
 

app/views/projects/_new_project_fields.html.haml

@@ -12,7 +12,13 @@
         .input-group-prepend.has-tooltip{ title: root_url }
           .input-group-text
             = root_url
-        = f.select :namespace_id, namespaces_options(namespace_id_from(params) || :current_user, display_path: true, extra_group: namespace_id_from(params)), {}, { class: 'select2 js-select-namespace qa-project-namespace-select', tabindex: 1}
+        - namespace_id = namespace_id_from(params)
+        = f.select(:namespace_id,
+                   namespaces_options(namespace_id || :current_user,
+                                      display_path: true,
+                                      extra_group: namespace_id),
+                   {},
+                   { class: 'select2 js-select-namespace qa-project-namespace-select', tabindex: 1})
 
       - else
         .input-group-prepend.static-namespace.has-tooltip{ title: user_url(current_user.username) + '/' }

changelogs/unreleased/ce-5666-backport.yml

+---
+title: CE port of "List groups with developer maintainer access on project creation"
+merge_request: 21051
+author:
+type: other

qa/qa/page/project/new.rb

@@ -10,7 +10,7 @@ module QA
 
         view 'app/views/projects/_new_project_fields.html.haml' do
           element :project_namespace_select
-          element :project_namespace_field, /select :namespace_id.*class: 'select2/
+          element :project_namespace_field, 'namespaces_options'
           element :project_path, 'text_field :path'
           element :project_description, 'text_area :description'
           element :project_create_button, "submit 'Create project'"