Another round of code review

db/migrate/20170407140450_add_index_to_next_run_at_and_active.rb

@@ -6,7 +6,13 @@ class AddIndexToNextRunAtAndActive < ActiveRecord::Migration
 
   DOWNTIME = false
 
-  def change
-    add_index :ci_trigger_schedules, [:active, :next_run_at]
+  disable_ddl_transaction!
+
+  def up
+    add_concurrent_index :ci_trigger_schedules, [:active, :next_run_at]
+  end
+
+  def down
+    remove_index :ci_trigger_schedules, [:active, :next_run_at]
   end
 end

spec/features/triggers_spec.rb

@@ -106,7 +106,7 @@ feature 'Triggers', feature: true, js: true do
         end
       end
 
-      context 'enabling schedule' do
+      context 'disabling schedule' do
         before do
           trigger.create_trigger_schedule(project: trigger.project, active: true)