1 files changed, 7 insertions, 8 deletions
diff --git a/lib/api/helpers.rb b/lib/api/helpers.rb
index c8aee1f3479..147d8407142 100644
--- a/lib/api/helpers.rb
+++ b/lib/api/helpers.rb
@@ -89,16 +89,15 @@ module API
       @project ||= find_project!(params[:id])
     end
 
-    def available_labels_for(label_parent, include_ancestor_groups: true)
-      search_params = { include_ancestor_groups: include_ancestor_groups }
-
+    def available_labels_for(label_parent, params = { include_ancestor_groups: true, only_group_labels: true })
       if label_parent.is_a?(Project)
-        search_params[:project_id] = label_parent.id
+        params.delete(:only_group_labels)
+        params[:project_id] = label_parent.id
       else
-        search_params.merge!(group_id: label_parent.id, only_group_labels: true)
+        params[:group_id] = label_parent.id
       end
 
-      LabelsFinder.new(current_user, search_params).execute
+      LabelsFinder.new(current_user, params).execute
     end
 
     def find_user(id)
@@ -388,8 +387,8 @@ module API
       render_api_error!('401 Unauthorized', 401)
     end
 
-    def not_allowed!
-      render_api_error!('405 Method Not Allowed', 405)
+    def not_allowed!(message = nil)
+      render_api_error!(message || '405 Method Not Allowed', :method_not_allowed)
     end
 
     def not_acceptable!