@Override
 public ServiceResponse updateField(Map<String, String> fieldMap) {
   FieldEntity field = new FieldEntity();
   List<String> errors = getBusiness().getFieldBusiness().convertFromVO(field, fieldMap);
   if (errors.isEmpty()) {
     List<String> validateErrors = getBusiness().getFieldBusiness().validateBeforeUpdate(field);
     if (validateErrors.isEmpty()) {
       boolean newField = field.getId() == null;
       getDao().getFieldDao().save(field);
       if (newField) {
         FormEntity form = getDao().getFormDao().getById(field.getFormId());
         getBusiness().getFieldBusiness().checkOrder(form);
       }
       return ServiceResponse.createSuccessResponse(Messages.get("form.field_success_update"));
     } else {
       ServiceResponse resp =
           ServiceResponse.createErrorResponse(Messages.get("validation_errors"));
       resp.setMessages(validateErrors);
       return resp;
     }
   } else {
     ServiceResponse resp =
         ServiceResponse.createErrorResponse(Messages.get("convertation_errors"));
     resp.setMessages(errors);
     return resp;
   }
 }
 private int indexOf(List<FieldEntity> fields, final Long fieldId) {
   for (int i = 0; i < fields.size(); i++) {
     FieldEntity field = fields.get(i);
     if (field.getId().equals(fieldId)) {
       return i;
     }
   }
   return -1;
 }