Merge branch 'backport-issue_3413' into 'master'

[EE-backport] Add group boards API endpoint

See merge request gitlab-org/gitlab-ce!16194

1 files changed, 12 insertions, 3 deletions

diff --git a/lib/api/helpers.rb b/lib/api/helpers.rb
index 8ad4b2ecbf3..bf388163ec8 100644
--- a/lib/api/helpers.rb
+++ b/lib/api/helpers.rb
@@ -74,8 +74,15 @@ module API
       page || not_found!('Wiki Page')
     end
 
-    def available_labels
-      @available_labels ||= LabelsFinder.new(current_user, project_id: user_project.id).execute
+    def available_labels_for(label_parent)
+      search_params =
+        if label_parent.is_a?(Project)
+          { project_id: label_parent.id }
+        else
+          { group_id: label_parent.id, only_group_labels: true }
+        end
+
+      LabelsFinder.new(current_user, search_params).execute
     end
 
     def find_user(id)
@@ -141,7 +148,9 @@ module API
     end
 
     def find_project_label(id)
-      label = available_labels.find_by_id(id) || available_labels.find_by_title(id)
+      labels = available_labels_for(user_project)
+      label = labels.find_by_id(id) || labels.find_by_title(id)
+
       label || not_found!('Label')
     end