private function getExistingTitles(array $suggestions)
{
$params = $this->extractRequestParams();
$titles = array();
$sourceLanguage = $params['from'];
$targetLanguage = $params['to'];
$domain = SiteMapper::getDomainCode($sourceLanguage);
$existingTitles = array();
foreach ($suggestions as $suggestion) {
$titles[] = $suggestion->getTitle()->getPrefixedText();
}
$params = array('action' => 'query', 'format' => 'json', 'titles' => implode('|', $titles), 'prop' => 'langlinks', 'lllimit' => $params['limit'], 'lllang' => SiteMapper::getDomainCode($targetLanguage), 'redirects' => true);
$apiUrl = SiteMapper::getApiURL($sourceLanguage, $params);
$json = Http::get($apiUrl);
$response = FormatJson::decode($json, true);
if (!isset($response['query']) || !isset($response['query']['pages'])) {
// Something wrong with response. Should we throw exception?
return $existingTitles;
}
$pages = $response['query']['pages'];
foreach ($pages as $page) {
if (isset($page['langlinks'])) {
// API returns titles in PrefixedText format
$existingTitles[] = $page['title'];
}
}
return $existingTitles;
}
