Initial commit

db/migrate/20180417111305_migrate_withdraw_channels_to_currency.rb

@@ -0,0 +1,15 @@
+# encoding: UTF-8
+# frozen_string_literal: true
+
+class MigrateWithdrawChannelsToCurrency < ActiveRecord::Migration[4.2]
+  def change
+    add_column :currencies, :withdraw_fee, :decimal, after: :quick_withdraw_limit, null: false, default: 0, precision: 7, scale: 6
+    if defined?(Currency) && File.file?('config/withdraw_channels.old.yml')
+      (YAML.load_file('config/withdraw_channels.old.yml') || []).each do |channel|
+        Currency.find(channel.fetch('currency')).tap do |ccy|
+          ccy.update_columns(withdraw_fee: channel.fetch('fee'))
+        end
+      end
+    end
+  end
+end