RevDelLogItem.php

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<?php
class RevDelLogItem extends RevDelItem {
    public function getIdField() {
        return 'log_id';
    }

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

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

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

    public function getAuthorActorField() {
        return 'log_actor';
    }

    public function canView() {
        return LogEventsList::userCan( $this->row, Revision::DELETED_RESTRICTED, $this->list->getUser() );
    }

    public function canViewContent() {
        return true; // none
    }

    public function getBits() {
        return (int)$this->row->log_deleted;
    }

    public function setBits( $bits ) {
        $dbw = wfGetDB( DB_MASTER );

        $dbw->update( 'logging',
            [ 'log_deleted' => $bits ],
            [
                'log_id' => $this->row->log_id,
                'log_deleted' => $this->getBits() // cas
            ],
            __METHOD__
        );

        if ( !$dbw->affectedRows() ) {
            // Concurrent fail!
            return false;
        }

        $dbw->update( 'recentchanges',
            [
                'rc_deleted' => $bits,
                'rc_patrolled' => RecentChange::PRC_AUTOPATROLLED
            ],
            [
                'rc_logid' => $this->row->log_id,
                'rc_timestamp' => $this->row->log_timestamp // index
            ],
            __METHOD__
        );

        return true;
    }

    public function getHTML() {
        $date = htmlspecialchars( $this->list->getLanguage()->userTimeAndDate(
            $this->row->log_timestamp, $this->list->getUser() ) );
        $title = Title::makeTitle( $this->row->log_namespace, $this->row->log_title );
        $formatter = LogFormatter::newFromRow( $this->row );
        $formatter->setContext( $this->list->getContext() );
        $formatter->setAudience( LogFormatter::FOR_THIS_USER );

        // Log link for this page
        $loglink = $this->getLinkRenderer()->makeLink(
            SpecialPage::getTitleFor( 'Log' ),
            $this->list->msg( 'log' )->text(),
            [],
            [ 'page' => $title->getPrefixedText() ]
        );
        $loglink = $this->list->msg( 'parentheses' )->rawParams( $loglink )->escaped();
        // User links and action text
        $action = $formatter->getActionText();

        $comment = CommentStore::getStore()->getComment( 'log_comment', $this->row )->text;
        $comment = $this->list->getLanguage()->getDirMark()
            . Linker::commentBlock( $comment );

        if ( LogEventsList::isDeleted( $this->row, LogPage::DELETED_COMMENT ) ) {
            $comment = '<span class="history-deleted">' . $comment . '</span>';
        }

        return "<li>$loglink $date $action $comment</li>";
    }

    public function getApiData( ApiResult $result ) {
        $logEntry = DatabaseLogEntry::newFromRow( $this->row );
        $user = $this->list->getUser();
        $ret = [
            'id' => $logEntry->getId(),
            'type' => $logEntry->getType(),
            'action' => $logEntry->getSubtype(),
            'userhidden' => (bool)$logEntry->isDeleted( LogPage::DELETED_USER ),
            'commenthidden' => (bool)$logEntry->isDeleted( LogPage::DELETED_COMMENT ),
            'actionhidden' => (bool)$logEntry->isDeleted( LogPage::DELETED_ACTION ),
        ];

        if ( LogEventsList::userCan( $this->row, LogPage::DELETED_ACTION, $user ) ) {
            $ret['params'] = LogFormatter::newFromEntry( $logEntry )->formatParametersForApi();
        }
        if ( LogEventsList::userCan( $this->row, LogPage::DELETED_USER, $user ) ) {
            $ret += [
                'userid' => $this->row->log_user,
                'user' => $this->row->log_user_text,
            ];
        }
        if ( LogEventsList::userCan( $this->row, LogPage::DELETED_COMMENT, $user ) ) {
            $ret += [
                'comment' => CommentStore::getStore()->getComment( 'log_comment', $this->row )
                    ->text,
            ];
        }

        return $ret;
    }
}