wcfsetup/install/files/lib/data/article/LikeableArticleProvider.class.php

   1 <?php
   2
   3 namespace wcf\data\article;
   4
   5 use wcf\data\like\ILikeObjectTypeProvider;
   6 use wcf\data\like\object\ILikeObject;
   7 use wcf\data\object\type\AbstractObjectTypeProvider;
   8 use wcf\system\like\IViewableLikeProvider;
   9 use wcf\system\WCF;
  10
  11 /**
  12  * Like Object type provider for cms articles.
  13  *
  14  * @author  Marcel Werk
  15  * @copyright   2001-2019 WoltLab GmbH
  16  * @license GNU Lesser General Public License <http://opensource.org/licenses/lgpl-license.php>
  17  * @since   3.0
  18  *
  19  * @method  LikeableArticle     getObjectByID($objectID)
  20  * @method  LikeableArticle[]       getObjectsByIDs(array $objectIDs)
  21  */
  22 class LikeableArticleProvider extends AbstractObjectTypeProvider implements
  23     ILikeObjectTypeProvider,
  24     IViewableLikeProvider
  25 {
  26     /**
  27      * @inheritDoc
  28      */
  29     public $className = Article::class;
  30
  31     /**
  32      * @inheritDoc
  33      */
  34     public $listClassName = ArticleList::class;
  35
  36     /**
  37      * @inheritDoc
  38      */
  39     public $decoratorClassName = LikeableArticle::class;
  40
  41     /**
  42      * @inheritDoc
  43      */
  44     public function checkPermissions(ILikeObject $object)
  45     {
  46         /** @var LikeableArticle $object */
  47         return $object->articleID && $object->canRead();
  48     }
  49
  50     /**
  51      * @inheritDoc
  52      */
  53     public function prepare(array $likes)
  54     {
  55         $articleIDs = [];
  56         foreach ($likes as $like) {
  57             $articleIDs[] = $like->objectID;
  58         }
  59
  60         // fetch articles
  61         $articleList = new ViewableArticleList();
  62         $articleList->setObjectIDs($articleIDs);
  63         $articleList->readObjects();
  64         $articles = $articleList->getObjects();
  65
  66         // set message
  67         foreach ($likes as $like) {
  68             if (isset($articles[$like->objectID])) {
  69                 $article = $articles[$like->objectID];
  70
  71                 // check permissions
  72                 if (!$article->canRead()) {
  73                     continue;
  74                 }
  75                 $like->setIsAccessible();
  76
  77                 // short output
  78                 $text = WCF::getLanguage()->getDynamicVariable('wcf.like.title.com.woltlab.wcf.likeableArticle', [
  79                     'article' => $article,
  80                     'reaction' => $like,
  81                     // @deprecated 5.3 Use `$reaction` instead
  82                     'like' => $like,
  83                 ]);
  84                 $like->setTitle($text);
  85
  86                 // output
  87                 $like->setDescription($article->getTeaser());
  88             }
  89         }
  90     }
  91 }