RevDelFileList.php

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<?php
class RevDelFileList extends RevDelList {
    public $storeBatch;

    public $deleteBatch;

    public $cleanupBatch;

    public function getType() {
        return 'oldimage';
    }

    public static function getRelationType() {
        return 'oi_archive_name';
    }

    public static function getRestriction() {
        return 'deleterevision';
    }

    public static function getRevdelConstant() {
        return File::DELETED_FILE;
    }

    public function doQuery( $db ) {
        $archiveNames = [];
        foreach ( $this->ids as $timestamp ) {
            $archiveNames[] = $timestamp . '!' . $this->title->getDBkey();
        }

        return $db->select(
            'oldimage',
            OldLocalFile::selectFields(),
            [
                'oi_name' => $this->title->getDBkey(),
                'oi_archive_name' => $archiveNames
            ],
            __METHOD__,
            [ 'ORDER BY' => 'oi_timestamp DESC' ]
        );
    }

    public function newItem( $row ) {
        return new RevDelFileItem( $this, $row );
    }

    public function clearFileOps() {
        $this->deleteBatch = [];
        $this->storeBatch = [];
        $this->cleanupBatch = [];
    }

    public function doPreCommitUpdates() {
        $status = Status::newGood();
        $repo = RepoGroup::singleton()->getLocalRepo();
        if ( $this->storeBatch ) {
            $status->merge( $repo->storeBatch( $this->storeBatch, FileRepo::OVERWRITE_SAME ) );
        }
        if ( !$status->isOK() ) {
            return $status;
        }
        if ( $this->deleteBatch ) {
            $status->merge( $repo->deleteBatch( $this->deleteBatch ) );
        }
        if ( !$status->isOK() ) {
            // Running cleanupDeletedBatch() after a failed storeBatch() with the DB already
            // modified (but destined for rollback) causes data loss
            return $status;
        }
        if ( $this->cleanupBatch ) {
            $status->merge( $repo->cleanupDeletedBatch( $this->cleanupBatch ) );
        }

        return $status;
    }

    public function doPostCommitUpdates() {
        $file = wfLocalFile( $this->title );
        $file->purgeCache();
        $file->purgeDescription();

        // Purge full images from cache
        $purgeUrls = [];
        foreach ( $this->ids as $timestamp ) {
            $archiveName = $timestamp . '!' . $this->title->getDBkey();
            $file->purgeOldThumbnails( $archiveName );
            $purgeUrls[] = $file->getArchiveUrl( $archiveName );
        }
        DeferredUpdates::addUpdate(
            new CdnCacheUpdate( $purgeUrls ),
            DeferredUpdates::PRESEND
        );

        return Status::newGood();
    }

    public function getSuppressBit() {
        return File::DELETED_RESTRICTED;
    }
}