module Rails::Generators::Database

def convert_database_option_for_jruby
  if defined?(JRUBY_VERSION)
    opt = options.dup
    case opt[:database]
    when "postgresql" then opt[:database] = "jdbcpostgresql"
    when "mysql"      then opt[:database] = "jdbcmysql"
    when "sqlite3"    then opt[:database] = "jdbcsqlite3"
    end
    self.options = opt.freeze
  end
end