config_file = Rails.root.join('config/mongo.yml')

if config_file.file?
  config = YAML.load(ERB.new(config_file.read).result)[Rails.env]

  MongoMapper.connection = Mongo::Connection.new(config['host'], config['port'], :logger => Rails.logger)
  if config['username']
    conn.authenticate(config['username'], config['password']) || raise("Invalid MongoDB Authentication")
  end
  MongoMapper.database = config['database']
end