/**
* Given an array of IDs and a record source, load a batch of records for
* that source.
*
* @param array $ids Record IDs
* @param string $source Record source
*
* @throws \Exception
* @return array
*/
public function loadBatchForSource($ids, $source = DEFAULT_SEARCH_BACKEND)
{
$cachedRecords = [];
if (null !== $this->recordCache && $this->recordCache->isPrimary($source)) {
// Try to load records from cache if source is cachable
$cachedRecords = $this->recordCache->lookupBatch($ids, $source);
// Check which records could not be loaded from the record cache
foreach ($cachedRecords as $cachedRecord) {
$key = array_search($cachedRecord->getUniqueId(), $ids);
if ($key !== false) {
unset($ids[$key]);
}
}
}
// Try to load the uncached records from the original $source
$genuineRecords = [];
if (!empty($ids)) {
$genuineRecords = $this->searchService->retrieveBatch($source, $ids)->getRecords();
foreach ($genuineRecords as $genuineRecord) {
$key = array_search($genuineRecord->getUniqueId(), $ids);
if ($key !== false) {
unset($ids[$key]);
}
}
}
if (!empty($ids) && null !== $this->recordCache && $this->recordCache->isFallback($source)) {
// Try to load missing records from cache if source is cachable
$cachedRecords = $this->recordCache->lookupBatch($ids, $source);
}
// Merge records found in cache and records loaded from original $source
$retVal = $genuineRecords;
foreach ($cachedRecords as $cachedRecord) {
$retVal[] = $cachedRecord;
}
return $retVal;
}
/**
* Given an array of IDs and a record source, load a batch of records for
* that source.
*
* @param array $ids Record IDs
* @param string $source Record source
*
* @throws \Exception
* @return array
*/
public function loadBatchForSource($ids, $source = 'VuFind')
{
return $this->searchService->retrieveBatch($source, $ids)->getRecords();
}
