public function saveCategoryChangeFieldGroup($tableBeforeSave, $table, $isNew)
{
if (!$isNew) {
$db = JFactory::getDbo();
if ($tableBeforeSave->fieldgroup_id != $table->fieldgroup_id) {
$docId_arr = JUDownloadHelper::getDocumentIdsByCatId($table->id);
foreach ($docId_arr as $docId) {
JUDownloadHelper::deleteFieldValuesOfDocument($docId);
}
$query = "DELETE FROM #__judownload_fields_ordering WHERE item_id = {$table->id} AND type = 'category'";
$db->setQuery($query);
$db->execute();
JUDownloadHelper::changeInheritedFieldGroupId($table->id, $table->fieldgroup_id);
}
}
}
