@RequestMapping(value = "/{invoiceId}/control-letters/{id}") public String showControlLetter( @PathVariable("invoiceId") int invoiceId, @PathVariable("id") int id, Model model) { ControlLetter controlLetter = controlLetterService.find(id); if (controlLetter == null) throw new ResourceNotFoundException(); controlLetter.setIncomeId(invoiceId); List<Employee> employees = employeeService.findAll(Employee.EmployeePosition.CASIER.getId()); model.addAttribute("employees", employees); model.addAttribute("controlLetter", controlLetter); return "controlLetter/edit"; }