Initial commit

db/migrate/20180905112301_remove_fields_from_currenices.rb

@@ -0,0 +1,14 @@
+class RemoveFieldsFromCurrenices < ActiveRecord::Migration[4.2]
+  class Ccy < ActiveRecord::Base
+    serialize :options, JSON
+    self.table_name = 'currencies'
+    self.inheritance_column = :disabled
+  end
+
+  def change
+    Ccy.where(type: :coin).find_each do |ccy|
+      ccy.update_columns \
+      options: ccy.options.except('supports_hd_protocol', 'allow_multiple_deposit_addresses')
+    end
+  end
+end