public static function getDefaultOrderBy()
{
$orderField = c('Vanilla.Discussions.SortField', self::DEFAULT_ORDER_BY_FIELD);
$orderDirection = c('Vanilla.Discussions.SortDirection', 'desc');
// Normalize any prefixed fields
if (strpos($orderField, 'd.') === 0) {
$orderField = substr($orderField, 2);
}
return [$orderField => $orderDirection];
}