foreach ($vars as $weight => $value) {
$this->_vars[$weight] = [
'name' => CRM_Utils_Type::validate($value['sort'], 'MysqlColumnNameOrAlias'),
foreach ($vars as $weight => $value) {
$this->_vars[$weight] = [
'name' => CRM_Utils_Type::validate($value['sort'], 'MysqlColumnNameOrAlias'),