def login
  @title = "Logowanie do RailsSpace"
  if param_posted?(:user)
    @user = User.new(params[:user])
    user = User.find_by_screen_name_and_password (@user.screen_name,@user.password)
    if user
      user.login!(session)
      flash[:notice] = "Uytkownik #{user.screen_name} zalogowany!"
      redirect_to_forwarding_url
    else
      @user.clear_password!
      flash[:notice] = "Nieprawidowa kombinacja uytkownika/hasa"
    end
  end
end

