/**
* Try to build an array of OCLC Number, ISBN or ISSN-based sub-queries by
* using OCLC X-services against a record driver object.
*
* @param \VuFind\RecordDriver\AbstractBase $driver Record driver object
*
* @return array
*/
protected function getQueryParts($driver)
{
$parts = [];
$oclcNum = $driver->tryMethod('getCleanOCLCNum');
if (!empty($oclcNum)) {
$oclcList = $this->wcUtils->getXOCLCNUM($oclcNum);
foreach ($oclcList as $current) {
$parts[] = "oclc_num:" . $current;
}
}
$isbn = $driver->tryMethod('getCleanISBN');
if (!empty($isbn)) {
$isbnList = $this->wcUtils->getXISBN($isbn);
foreach ($isbnList as $current) {
$parts[] = 'isbn:' . $current;
}
}
$issn = $driver->tryMethod('getCleanISSN');
if (!empty($issn)) {
$issnList = $this->wcUtils->getXISSN($issn);
foreach ($issnList as $current) {
$parts[] = 'issn:' . $current;
}
}
return $parts;
}
/**
* Get identities related to the query.
*
* @return array
*/
public function getIdentities()
{
// Extract the first search term from the search object:
$search = $this->searchObject->getParams()->getQuery();
$lookfor = $search instanceof Query ? $search->getString() : '';
// Get terminology information:
return $this->worldCatUtils->getRelatedIdentities($lookfor);
}
/**
* Get terms related to the query.
*
* @return array
*/
public function getTerms()
{
// Extract the first search term from the search object:
$search = $this->searchObject->getParams()->getQuery();
$lookfor = $search instanceof Query ? $search->getString() : '';
// Get terminology information:
$terms = $this->worldCatUtils->getRelatedTerms($lookfor, $this->vocab);
// Wipe out any empty or unexpected sections of the related terms array;
// this will make it easier to only display content in the template if
// we have something worth displaying.
if (is_array($terms)) {
$desiredKeys = ['exact', 'broader', 'narrower'];
foreach ($terms as $key => $value) {
if (empty($value) || !in_array($key, $desiredKeys)) {
unset($terms[$key]);
}
}
}
return $terms;
}