RevDelArchiveItem.php

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<?php
class RevDelArchiveItem extends RevDelRevisionItem {
    public function __construct( $list, $row ) {
        RevDelItem::__construct( $list, $row );
        $this->revision = Revision::newFromArchiveRow( $row,
            [ 'page' => $this->list->title->getArticleID() ] );
    }

    public function getIdField() {
        return 'ar_timestamp';
    }

    public function getTimestampField() {
        return 'ar_timestamp';
    }

    public function getAuthorIdField() {
        return 'ar_user';
    }

    public function getAuthorNameField() {
        return 'ar_user_text';
    }

    public function getId() {
        # Convert DB timestamp to MW timestamp
        return $this->revision->getTimestamp();
    }

    public function setBits( $bits ) {
        $dbw = wfGetDB( DB_MASTER );
        $dbw->update( 'archive',
            [ 'ar_deleted' => $bits ],
            [
                'ar_namespace' => $this->list->title->getNamespace(),
                'ar_title' => $this->list->title->getDBkey(),
                // use timestamp for index
                'ar_timestamp' => $this->row->ar_timestamp,
                'ar_rev_id' => $this->row->ar_rev_id,
                'ar_deleted' => $this->getBits()
            ],
            __METHOD__ );

        return (bool)$dbw->affectedRows();
    }

    protected function getRevisionLink() {
        $date = htmlspecialchars( $this->list->getLanguage()->userTimeAndDate(
            $this->revision->getTimestamp(), $this->list->getUser() ) );

        if ( $this->isDeleted() && !$this->canViewContent() ) {
            return $date;
        }

        return Linker::link(
            SpecialPage::getTitleFor( 'Undelete' ),
            $date,
            [],
            [
                'target' => $this->list->title->getPrefixedText(),
                'timestamp' => $this->revision->getTimestamp()
            ]
        );
    }

    protected function getDiffLink() {
        if ( $this->isDeleted() && !$this->canViewContent() ) {
            return $this->list->msg( 'diff' )->escaped();
        }

        return Linker::link(
            SpecialPage::getTitleFor( 'Undelete' ),
            $this->list->msg( 'diff' )->escaped(),
            [],
            [
                'target' => $this->list->title->getPrefixedText(),
                'diff' => 'prev',
                'timestamp' => $this->revision->getTimestamp()
            ]
        );
    }
}