Initial commit

db/migrate/20180425094920_limit_trading_fee.rb

@@ -0,0 +1,11 @@
+# encoding: UTF-8
+# frozen_string_literal: true
+
+class LimitTradingFee < ActiveRecord::Migration[4.2]
+  def change
+    execute %{UPDATE markets SET ask_fee = 0.5 WHERE ask_fee > 0.5}
+    execute %{UPDATE markets SET bid_fee = 0.5 WHERE bid_fee > 0.5}
+    change_column :markets, :ask_fee, :decimal, null: false, default: 0, precision: 17, scale: 16
+    change_column :markets, :bid_fee, :decimal, null: false, default: 0, precision: 17, scale: 16
+  end
+end