public function generateArticleViewsDataDoctrine($articles, $dates = null)
{
$articleStatRepo = $this->manager->getRepository('OjsAnalyticsBundle:ArticleStatistic');
$stats = $articleStatRepo->getMostViewed($articles, $dates, 10);
$result = [];
foreach ($stats as $stat) {
/** @var ArticleStatistic $articleStat */
$articleStat = $stat[0];
$result[] = array($articleStat->getArticle()->getTitle(), $stat['totalViews']);
}
return $result;
}