messagecleaner.php

<?php
 
namespace Bitrix\Forum\Internals;
 
use \Bitrix\Main;
use \Bitrix\Forum;
 
class MessageCleaner extends Main\Update\Stepper
{
    protected static int $limit = 10;
    protected static $moduleId = "forum";
 
    public static function getTitle(): string
    {
        return 'Message cleaner';
    }
 
    public function execute(array &$option)
    {
        $option["steps"] = 1;
        $option["count"] = 1;
        if (self::do() > 0)
        {
            return self::FINISH_EXECUTION;
        }
        return self::CONTINUE_EXECUTION;
    }
 
    private static function do()
    {
        $limit = self::$limit;
        $dbRes = Main\Application::getConnection()->query(<<<SQL
SELECT ID, FORUM_ID, TOPIC_ID, MESSAGE_ID, NEW_TOPIC, APPROVED, PARAM1, PARAM2, AUTHOR_ID
FROM b_forum_service_deleted_message
ORDER BY ID ASC
LIMIT {$limit}
SQL
        );
        $votes = [];
        global $USER_FIELD_MANAGER;
        $last = null;
        while ($message = $dbRes->fetch())
        {
            if ($message["PARAM1"] == 'VT')
            {
                $votes[] = $message["PARAM2"];
            }
 
            $selectSql = "SELECT * FROM b_forum_file where MESSAGE_ID=" . intval($message['MESSAGE_ID']) . " ORDER BY ID ASC";
 
            $dbFileRes = Main\Application::getConnection()->query($selectSql);
 
            if ($dbFileRes && ($file = $dbFileRes->fetch()))
            {
                do
                {
                    \CFile::Delete($file["FILE_ID"]);
                }
                while ($file = $dbFileRes->fetch());
                $deleteSql = "DELETE FROM b_forum_file where MESSAGE_ID=" . intval($message['MESSAGE_ID']);
                Main\Application::getConnection()->queryExecute($deleteSql);
            }
 
            $USER_FIELD_MANAGER->Delete("FORUM_MESSAGE", $message["MESSAGE_ID"]);
            $limit--;
            $last = $message;
        }
 
        if (!empty($votes) && IsModuleInstalled("vote") && \CModule::IncludeModule("vote"))
        {
            array_map(function($voteId) {
                \CVote::Delete($voteId);
            }, $votes);
        }
 
        if ($last)
        {
            Main\Application::getConnection()->queryExecute(<<<SQL
DELETE FROM b_forum_service_deleted_message WHERE ID <= {$last['ID']}
SQL
            );
        }
        return $limit;
    }
 
    public static function runForTopic(int $topicId)
    {
        Main\Application::getConnection()->queryExecute(<<<SQL
INSERT IGNORE INTO b_forum_service_deleted_message 
    (FORUM_ID, TOPIC_ID, MESSAGE_ID, NEW_TOPIC, APPROVED, PARAM1, PARAM2, AUTHOR_ID)
SELECT FORUM_ID, TOPIC_ID, ID, NEW_TOPIC, APPROVED, PARAM1, PARAM2, AUTHOR_ID
FROM b_forum_message 
WHERE TOPIC_ID = {$topicId}
SQL
        );
        self::bind(0);
    }
}