/**
* Figure out which bib IDs to load from the ILS.
*
* @param \VuFind\ILS\Connection $catalog ILS connection
* @param \VuFind\Search\Solr\Params $params Solr parameters
* @param string $range Range setting
* @param string $dept Department setting
* @param \Zend\Mvc\Controller\Plugin\FlashMessenger $flash Flash messenger
*
* @return array
*/
public function getBibIDsFromCatalog($catalog, $params, $range, $dept, $flash)
{
// The code always pulls in enough catalog results to get a fixed number
// of pages worth of Solr results. Note that if the Solr index is out of
// sync with the ILS, we may see fewer results than expected.
$resultPages = $this->getResultPages();
$perPage = $params->getLimit();
$newItems = $catalog->getNewItems(1, $perPage * $resultPages, $range, $dept);
// Build a list of unique IDs
$bibIDs = [];
for ($i = 0; $i < count($newItems['results']); $i++) {
$bibIDs[] = $newItems['results'][$i]['id'];
}
// Truncate the list if it is too long:
$limit = $params->getQueryIDLimit();
if (count($bibIDs) > $limit) {
$bibIDs = array_slice($bibIDs, 0, $limit);
$flash->setNamespace('info')->addMessage('too_many_new_items');
}
return $bibIDs;
}
