Method isFormFieldActive

/*
 * Check if we ask some form field in billing or shipping address
 * E.g. if vendor completely skip adding shipping address and user sends no shipping address
 * this does not mean that user didn't added data but vendor just didn't asked for them.
 */
public static function isFormFieldActive($type = 'billing')
{
    $db = Factory::getDBO();
    $wheres = array();
    switch ($type) {
        case 'account':
            $wheres[] = " a.display_display_account = 1";
            break;
        case 'shipping':
            $wheres[] = " a.display_shipping = 1";
            break;
        case 'billing':
        default:
            $wheres[] = " a.display_billing = 1";
            break;
    }
    $where = count($wheres) ? ' WHERE ' . implode(' AND ', $wheres) : '';
    $query = 'SELECT a.id' . ' FROM #__phocacart_form_fields AS a' . $where . ' ORDER BY a.id' . ' LIMIT 1';
    $db->setQuery($query);
    $row = $db->loadResult();
    if ((int) $row > 0) {
        return true;
    }
    return false;
}