Initialize constants with values from DB in Rails
SESSION_DURATION = SystemDB::Configuration.get('session_duration', 0).to_i.minutes

require "rubygems"
require "activerecord"

ActiveRecord::Base.establish_connection (
  :adapter => "mysql",
  :host => "localhost",
  :username => "user",
  :password => "password",
  :database => "some_database")