ProtectedTitlesPager.php

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<?php
class ProtectedTitlesPager extends AlphabeticPager {

    public $mForm, $mConds;

    function __construct( $form, $conds = [], $type, $level, $namespace,
        $sizetype = '', $size = 0
    ) {
        $this->mForm = $form;
        $this->mConds = $conds;
        $this->level = $level;
        $this->namespace = $namespace;
        $this->size = intval( $size );
        parent::__construct( $form->getContext() );
    }

    function getStartBody() {
        # Do a link batch query
        $this->mResult->seek( 0 );
        $lb = new LinkBatch;

        foreach ( $this->mResult as $row ) {
            $lb->add( $row->pt_namespace, $row->pt_title );
        }

        $lb->execute();

        return '';
    }

    function getTitle() {
        return $this->mForm->getTitle();
    }

    function formatRow( $row ) {
        return $this->mForm->formatRow( $row );
    }

    function getQueryInfo() {
        $conds = $this->mConds;
        $conds[] = 'pt_expiry > ' . $this->mDb->addQuotes( $this->mDb->timestamp() ) .
            ' OR pt_expiry IS NULL';
        if ( $this->level ) {
            $conds['pt_create_perm'] = $this->level;
        }

        if ( !is_null( $this->namespace ) ) {
            $conds[] = 'pt_namespace=' . $this->mDb->addQuotes( $this->namespace );
        }

        return [
            'tables' => 'protected_titles',
            'fields' => [ 'pt_namespace', 'pt_title', 'pt_create_perm',
                'pt_expiry', 'pt_timestamp' ],
            'conds' => $conds
        ];
    }

    function getIndexField() {
        return 'pt_timestamp';
    }
}