populatePPSortKey.php

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<?php
require_once __DIR__ . '/Maintenance.php';
 
class PopulatePPSortKey extends LoggedUpdateMaintenance {
    public function __construct() {
        parent::__construct();
        $this->addDescription( 'Populate the pp_sortkey field' );
        $this->setBatchSize( 100 );
    }
 
    protected function doDBUpdates() {
        $dbw = $this->getDB( DB_MASTER );
 
        $lastProp = null;
        $lastPageValue = 0;
        $editedRowCount = 0;
 
        $this->output( "Populating page_props.pp_sortkey...\n" );
        while ( true ) {
            $conditions = [ 'pp_sortkey IS NULL' ];
            if ( $lastPageValue !== 0 ) {
                $conditions[] = 'pp_page > ' . $dbw->addQuotes( $lastPageValue ) . ' OR ' .
                    '( pp_page = ' . $dbw->addQuotes( $lastPageValue ) .
                    ' AND pp_propname > ' . $dbw->addQuotes( $lastProp ) . ' )';
            }
 
            $res = $dbw->select(
                'page_props',
                [ 'pp_propname', 'pp_page', 'pp_sortkey', 'pp_value' ],
                $conditions,
                __METHOD__,
                [
                    'ORDER BY' => 'pp_page, pp_propname',
                    'LIMIT' => $this->getBatchSize()
                ]
            );
 
            if ( $res->numRows() === 0 ) {
                break;
            }
 
            $this->beginTransaction( $dbw, __METHOD__ );
 
            foreach ( $res as $row ) {
                if ( !is_numeric( $row->pp_value ) ) {
                    continue;
                }
                $dbw->update(
                    'page_props',
                    [ 'pp_sortkey' => $row->pp_value ],
                    [
                        'pp_page' => $row->pp_page,
                        'pp_propname' => $row->pp_propname
                    ],
                    __METHOD__
                );
                $editedRowCount++;
            }
 
            $this->output( "Updated " . $editedRowCount . " rows\n" );
            $this->commitTransaction( $dbw, __METHOD__ );
 
            // We need to get the last element's page ID
            $lastPageValue = $row->pp_page;
            // And the propname...
            $lastProp = $row->pp_propname;
        }
 
        $this->output( "Populating page_props.pp_sortkey complete.\n" );
        return true;
    }
 
    protected function getUpdateKey() {
        return 'populate pp_sortkey';
    }
}
 
$maintClass = PopulatePPSortKey::class;
require_once RUN_MAINTENANCE_IF_MAIN;