firma_obbligatoria && $this->getModel()->userCanFirmare($item->id, $this->getModel()->currentUser->id) && !empty($buttons)) : ?>
id;
$isSelected =
($selectedBtnId > 0 && $selectedBtnId === $btnId)
|| ($selectedEnum !== '' && in_array($selectedEnum, [
$slugify($btn->label),
str_replace('-', '_', $slugify($btn->label)), // normalizza trattini→underscore
], true));
// Classi bootstrap: selezionato = "success", altri disattivi = outline-secondary
$btnClasses = 'btn btn-sm ' . ($isSelected ? 'btn-success' : ($hasVoted ? 'btn-outline-secondary' : 'btn-primary'));
?>