Initial commit

db/migrate/20180516131005_improve_order_model2.rb

@@ -0,0 +1,9 @@
+# encoding: UTF-8
+# frozen_string_literal: true
+
+class ImproveOrderModel2 < ActiveRecord::Migration[4.2]
+  def change
+    add_index :orders, %i[type market_id]
+    add_index :orders, %i[type member_id]
+  end
+end