readonly rails console using Arproxy

readonly_console.rb

#!/usr/bin/env ruby
APP_PATH = File.expand_path('../../config/application',  __FILE__)
require File.expand_path('../../config/boot',  __FILE__)
require 'rails/commands/console'
require APP_PATH
Rails.application.require_environment!

require "arproxy"
module Arproxy
  class Readonly < Base
    def execute(sql, name=nil)
      if sql =~ /^(SELECT|SET|SHOW|DESCRIBE)\b/
        super sql, name
      else
        Rails.logger.warn "\e[31m #{name} (BLOCKED) #{sql}\e[0m"
      end
    end
  end
end

Arproxy.configure do |config|
  config.adapter = "mysql2"
  config.use Arproxy::Readonly
end
Arproxy.enable!

Rails::Console.start(Rails.application)