Adding canceled_at column to standing_orders table

db/migrate/20161206232009_add_canceled_at_to_standing_orders.rb

@@ -0,0 +1,5 @@
+class AddCanceledAtToStandingOrders < ActiveRecord::Migration
+  def change
+    add_column :standing_orders, :canceled_at, :datetime
+  end
+end

db/schema.rb

@@ -1099,6 +1099,7 @@ ActiveRecord::Schema.define(:version => 20170921065259) do
     t.datetime "updated_at",         :null => false
     t.integer  "bill_address_id",    :null => false
     t.integer  "ship_address_id",    :null => false
+    t.datetime "canceled_at"
   end
 
   add_index "standing_orders", ["bill_address_id"], :name => "index_standing_orders_on_bill_address_id"