@RequestMapping(name = "/offered", method = RequestMethod.GET)
    public String offered(HttpServletRequest request, Model model){
        String login = request.getParameter("login");
        List<OfferedMe> myOfferList = offeredMeRepository.findByOwnerLogin(login);
        model.addAttribute("myOfferedList", myOfferList);
        return "/offered"; //<-- uniemozliwia wczytanie szablonu
    }