@RequestMapping("new")
  public String create(Model model) {

    model.addAttribute("visita", new Visita());
    model.addAttribute("mascotas", mascotaDAO.all());
    model.addAttribute("veterinarios", veterinarioDAO.all());
    return "comercial/atencion/visitaForm";
  }
  @RequestMapping("update/{id}")
  public String update(@PathVariable("id") Long id, Model model) {

    Visita vis = visitaDAO.find(new Visita(id));
    model.addAttribute("visita", vis);
    model.addAttribute("mascotas", mascotaDAO.all());
    model.addAttribute("veterinarios", veterinarioDAO.all());
    return "comercial/atencion/visitaForm";
  }