[OJS] PDF download not appear and file publishedArticle.inc.php not found

I had a problem. I try to add statistic to Table of Content like abstract view and pdf download view. But only abstract view that appear in my page.
File : /templates/frontend/objects/article_summary.tpl
{translate key=“article.abstract”} views: {$article->getViews()}
{if is_a($article, ‘PublishedArticle’)}{assign var=galleys value=$article->getGalleys()}
{if $galleys}
{foreach from=$galleys item=galley name=galleyList}

and where’s the publishedArticle.inc.php gone? Because in some tutors I need modify that file to add statistics to Table of Content but in OJS 3.2 i can’t find it in /classes/article ?