/**
* Append default sort to all queries to get fully predictable search results.
*
* Order by _score first and then by the id field.
*
* @param array $orders Original orders.
* @param MappingInterface $mapping Mapping.
*
* @return array
*/
private function addDefaultSortOrders($orders, MappingInterface $mapping)
{
$defaultOrders = [SortOrderInterface::DEFAULT_SORT_FIELD => SortOrderInterface::SORT_DESC, $mapping->getIdField()->getName() => SortOrderInterface::SORT_DESC];
if (count($orders) > 0) {
$firstOrder = current($orders);
if ($firstOrder['direction'] == SortOrderInterface::SORT_DESC) {
$defaultOrders[SortOrderInterface::DEFAULT_SORT_FIELD] = SortOrderInterface::SORT_ASC;
$defaultOrders[$mapping->getIdField()->getName()] = SortOrderInterface::SORT_ASC;
}
}
foreach ($defaultOrders as $currentOrder => $direction) {
if (!in_array($currentOrder, array_keys($orders))) {
$orders[$currentOrder] = ['direction' => $direction];
}
}
return $orders;
}
