SpecialUnwatchedpages.php

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<?php
class UnwatchedpagesPage extends QueryPage {

    function __construct( $name = 'Unwatchedpages' ) {
        parent::__construct( $name, 'unwatchedpages' );
    }

    function isExpensive() {
        return true;
    }

    function isSyndicated() {
        return false;
    }

    function getQueryInfo() {
        return array(
            'tables' => array( 'page', 'watchlist' ),
            'fields' => array(
                'namespace' => 'page_namespace',
                'title' => 'page_title',
                'value' => 'page_namespace'
            ),
            'conds' => array(
                'wl_title IS NULL',
                'page_is_redirect' => 0,
                "page_namespace != '" . NS_MEDIAWIKI . "'"
            ),
            'join_conds' => array( 'watchlist' => array(
                'LEFT JOIN', array( 'wl_title = page_title',
                    'wl_namespace = page_namespace' ) ) )
        );
    }

    function sortDescending() {
        return false;
    }

    function getOrderFields() {
        return array( 'page_namespace', 'page_title' );
    }

    public function execute( $par ) {
        parent::execute( $par );
        $this->getOutput()->addModules( 'mediawiki.special.unwatchedPages' );
    }

    function formatResult( $skin, $result ) {
        global $wgContLang;

        $nt = Title::makeTitleSafe( $result->namespace, $result->title );
        if ( !$nt ) {
            return Html::element( 'span', array( 'class' => 'mw-invalidtitle' ),
                Linker::getInvalidTitleDescription( $this->getContext(), $result->namespace, $result->title ) );
        }

        $text = $wgContLang->convert( $nt->getPrefixedText() );

        $plink = Linker::linkKnown( $nt, htmlspecialchars( $text ) );
        $token = WatchAction::getWatchToken( $nt, $this->getUser() );
        $wlink = Linker::linkKnown(
            $nt,
            $this->msg( 'watch' )->escaped(),
            array( 'class' => 'mw-watch-link' ),
            array( 'action' => 'watch', 'token' => $token )
        );

        return $this->getLanguage()->specialList( $plink, $wlink );
    }

    protected function getGroupName() {
        return 'maintenance';
    }
}