@Override
 public void resetErrors() {
   for (FormSectionController section : controller.getSections()) {
     for (FormElementController elementController : section.getElements()) {
       elementController.setError(null);
     }
   }
 }
 @Override
 public void showErrors(List<ValidationError> errors) {
   Resources res = context.getResources();
   FormElementController element;
   for (ValidationError error : errors) {
     element = controller.getElement(error.getFieldName());
     element.setError(error.getMessage(res));
   }
 }