/**
* Accesses backlinks. Iterate over a result set of documents with outbound links, and store.
* (non-PHPdoc)
* @see \Wikia\Search\IndexService\AbstractService::execute()
*/
public function execute()
{
$docIdSeparated = $this->getCurrentDocumentId() . ' |';
$config = new Config();
$config->setDirectLuceneQuery(true)->setQuery(sprintf('outbound_links_txt:"%s"', $docIdSeparated));
$factory = new Factory();
$backlinks = [];
do {
$offset = 0;
$limit = 100;
$config->setStart($offset)->setLimit($limit);
$resultSet = $factory->getFromConfig($config)->search();
foreach ($resultSet as $result) {
foreach ($result['outbound_links_txt'] as $link) {
if (substr($link, 0, strlen($docIdSeparated)) == $docIdSeparated) {
$backlinks[] = implode(' | ', array_slice(explode(' | ', $link), 1));
}
}
}
$offset = $limit;
$limit = $offset + 100;
} while ($config->getResultsFound() > $limit);
return ['backlinks_txt' => $backlinks];
}
