Delete `LikeUserRebuildDataWorker`

Closes #4418

diff --git a/wcfsetup/install/files/lib/system/worker/LikeUserRebuildDataWorker.class.php b/wcfsetup/install/files/lib/system/worker/LikeUserRebuildDataWorker.class.php
deleted file mode 100644 (file)
index dfab8f4..0000000
--- a/wcfsetup/install/files/lib/system/worker/LikeUserRebuildDataWorker.class.php
+++ /dev/null
@@ -1,117 +0,0 @@
-<?php
-
-namespace wcf\system\worker;
-
-use wcf\data\like\Like;
-use wcf\data\like\object\LikeObjectList;
-use wcf\system\database\util\PreparedStatementConditionBuilder;
-use wcf\system\WCF;
-
-/**
- * Worker implementation for updating like users.
- *
- * @author  Alexander Ebert
- * @copyright   2001-2019 WoltLab GmbH
- * @license GNU Lesser General Public License <http://opensource.org/licenses/lgpl-license.php>
- * @package WoltLabSuite\Core\System\Worker
- * @deprecated  since 5.2 (the worker has been removed)
- *
- * @method  LikeObjectList  getObjectList()
- */
-class LikeUserRebuildDataWorker extends AbstractRebuildDataWorker
-{
-    /**
-     * @inheritDoc
-     */
-    protected $objectListClassName = LikeObjectList::class;
-
-    /**
-     * @inheritDoc
-     */
-    protected $limit = 100;
-
-    /**
-     * @inheritDoc
-     */
-    protected function initObjectList()
-    {
-        parent::initObjectList();
-
-        $this->objectList->sqlOrderBy = 'like_object.likeObjectID';
-    }
-
-    /**
-     * @inheritDoc
-     */
-    public function execute()
-    {
-        parent::execute();
-
-        if (!$this->loopCount) {
-            // reset cached users
-            $sql = "UPDATE  wcf" . WCF_N . "_like_object
-                    SET     cachedUsers = NULL";
-            $statement = WCF::getDB()->prepareStatement($sql);
-            $statement->execute();
-        }
-
-        $sql = "SELECT      userID
-                FROM        wcf" . WCF_N . "_like
-                WHERE       objectID = ?
-                        AND objectTypeID = ?
-                        AND likeValue = ?
-                ORDER BY    time DESC";
-        $statement = WCF::getDB()->prepareStatement($sql, 3);
-        $userData = $userIDs = [];
-        foreach ($this->objectList as $likeObject) {
-            $userData[$likeObject->likeObjectID] = [];
-
-            $statement->execute([
-                $likeObject->objectID,
-                $likeObject->objectTypeID,
-                Like::LIKE,
-            ]);
-            while ($row = $statement->fetchArray()) {
-                $userData[$likeObject->likeObjectID][] = $row['userID'];
-                $userIDs[] = $row['userID'];
-            }
-        }
-
-        if (empty($userIDs)) {
-            return;
-        }
-
-        // fetch usernames
-        $conditions = new PreparedStatementConditionBuilder();
-        $conditions->add("userID IN (?)", [$userIDs]);
-        $sql = "SELECT  userID, username
-                FROM    wcf" . WCF_N . "_user
-                " . $conditions;
-        $statement = WCF::getDB()->prepareStatement($sql);
-        $statement->execute($conditions->getParameters());
-        $usernames = $statement->fetchMap('userID', 'username');
-
-        // update like objects
-        $sql = "UPDATE  wcf" . WCF_N . "_like_object
-                SET     cachedUsers = ?
-                WHERE   likeObjectID = ?";
-        $statement = WCF::getDB()->prepareStatement($sql);
-
-        WCF::getDB()->beginTransaction();
-        foreach ($userData as $likeObjectID => $data) {
-            foreach ($data as &$value) {
-                $value = [
-                    'userID' => $value,
-                    'username' => $usernames[$value],
-                ];
-            }
-            unset($value);
-
-            $statement->execute([
-                \serialize($data),
-                $likeObjectID,
-            ]);
-        }
-        WCF::getDB()->commitTransaction();
-    }
-}