SpecialWantedTemplates.php

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<?php
namespace MediaWiki\Specials;
 
use MediaWiki\Cache\LinkBatchFactory;
use MediaWiki\Linker\LinksMigration;
use MediaWiki\SpecialPage\WantedQueryPage;
use Wikimedia\Rdbms\IConnectionProvider;
 
class SpecialWantedTemplates extends WantedQueryPage {
 
    private LinksMigration $linksMigration;
 
    public function __construct(
        IConnectionProvider $dbProvider,
        LinkBatchFactory $linkBatchFactory,
        LinksMigration $linksMigration
    ) {
        parent::__construct( 'Wantedtemplates' );
        $this->setDatabaseProvider( $dbProvider );
        $this->setLinkBatchFactory( $linkBatchFactory );
        $this->linksMigration = $linksMigration;
    }
 
    public function getQueryInfo() {
        $queryInfo = $this->linksMigration->getQueryInfo( 'templatelinks' );
        [ $ns, $title ] = $this->linksMigration->getTitleFields( 'templatelinks' );
        return [
            'tables' => array_merge( $queryInfo['tables'], [ 'page' ] ),
            'fields' => [
                'namespace' => $ns,
                'title' => $title,
                'value' => 'COUNT(*)'
            ],
            'conds' => [
                'page_title' => null,
                $ns => NS_TEMPLATE
            ],
            'options' => [ 'GROUP BY' => [ $ns, $title ] ],
            'join_conds' => array_merge(
                [ 'page' => [ 'LEFT JOIN',
                    [ "page_namespace = $ns", "page_title = $title" ] ] ],
                $queryInfo['joins']
            )
        ];
    }
 
    protected function getGroupName() {
        return 'maintenance';
    }
}
 
class_alias( SpecialWantedTemplates::class, 'SpecialWantedTemplates' );