public function testGetUnusedEntities()
{
$q3 = new ItemId('Q3');
$q4 = new ItemId('Q4');
$q6 = new ItemId('Q6');
$u3i = new EntityUsage($q3, EntityUsage::SITELINK_USAGE);
$u3l = new EntityUsage($q3, EntityUsage::LABEL_USAGE, 'de');
$u4l = new EntityUsage($q4, EntityUsage::LABEL_USAGE, 'de');
$usages = array($u3i, $u3l, $u4l);
$this->putUsages(23, $usages, '20150102030405');
Assert::assertEmpty($this->lookup->getUnusedEntities(array($q4)), 'Q4 should not be unused');
$unused = $this->lookup->getUnusedEntities(array($q4, $q6));
Assert::assertCount(1, $unused);
Assert::assertEquals($q6, reset($unused), 'Q6 shouold be unused');
}
/**
* Removes stale usage information for the given page, and removes
* any subscriptions that have become unnecessary.
*
* @param int $pageId The ID of the page the entities are used on.
* @param string $lastUpdatedBefore timestamp. Entries older than this timestamp will be removed.
*
* @see UsageTracker::trackUsedEntities
*
* @throws InvalidArgumentException
*/
public function pruneUsagesForPage($pageId, $lastUpdatedBefore = '00000000000000')
{
if (!is_int($pageId)) {
throw new InvalidArgumentException('$pageId must be an int!');
}
if (!is_string($lastUpdatedBefore) || $lastUpdatedBefore === '') {
throw new InvalidArgumentException('$lastUpdatedBefore must be a timestamp string!');
}
$prunedUsages = $this->usageTracker->pruneStaleUsages($pageId, $lastUpdatedBefore);
$prunedEntityIds = $this->getEntityIds($prunedUsages);
$unusedIds = $this->usageLookup->getUnusedEntities($prunedEntityIds);
if (!empty($unusedIds)) {
// Unsubscribe from anything that was pruned and is otherwise unused.
$this->subscriptionManager->unsubscribe($this->clientId, $unusedIds);
}
}
