activerecord without rails

require 'rubygems'
require 'active_record'
  
ActiveRecord::Base.establish_connection(  
  :adapter  => 'mysql',   
  :database => 'database',   
  :username => 'username',   
  :password => 'password',   
  :host     => 'localhost'
  :encoding => "utf8"
)

class User < ActiveRecord::Base
end