public String deleteCandidate() {
   this.candidate = nominatingSessionBean.getCandidate(candidateLogin);
   this.eventId = getEventId();
   try {
     nominatingSessionBean.deleteCandidateFromEvent(candidate, eventId);
     FacesMessage m =
         new FacesMessage("Candidate " + candidate.getLogin() + " was successfully removed");
     FacesContext.getCurrentInstance().addMessage("nic", m);
   } catch (ControllerException ex) {
     Logger.getLogger(VotingManagedBean.class.getName()).log(Level.SEVERE, null, ex);
     return "";
   }
   return "";
 }