class MemberField < ActiveRecord::Migration[4.2] def change change_table :members do |t| t.remove :level t.remove :sn t.remove :disabled t.remove :api_disabled end add_column :members, :uid, :string, after: :id, null: false, limit: 12 add_column :members, :level, :integer, after: :email, null: false add_column :members, :role, :string, after: :level, null: false, limit: 16 add_column :members, :state, :string, after: :role, null: false, limit: 16 end end