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SpecialListRedirects.php
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SpecialListRedirects.php
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<?php
/**
* Copyright © 2006 Rob Church
*
* @license GPL-2.0-or-later
* @file
*/
namespace MediaWiki\Specials;
use MediaWiki\Cache\LinkBatchFactory;
use MediaWiki\Html\Html;
use MediaWiki\Page\RedirectLookup;
use MediaWiki\Page\WikiPageFactory;
use MediaWiki\Skin\Skin;
use MediaWiki\SpecialPage\QueryPage;
use MediaWiki\Title\Title;
use stdClass;
use Wikimedia\Rdbms\IConnectionProvider;
use Wikimedia\Rdbms\IReadableDatabase;
use Wikimedia\Rdbms\IResultWrapper;
/**
* Lists all the redirecting pages on the wiki.
*
* @ingroup SpecialPage
* @author Rob Church <robchur@gmail.com>
*/
class SpecialListRedirects extends QueryPage {
private LinkBatchFactory $linkBatchFactory;
private WikiPageFactory $wikiPageFactory;
private RedirectLookup $redirectLookup;
public function __construct(
LinkBatchFactory $linkBatchFactory,
IConnectionProvider $dbProvider,
WikiPageFactory $wikiPageFactory,
RedirectLookup $redirectLookup
) {
parent::__construct( 'Listredirects' );
$this->linkBatchFactory = $linkBatchFactory;
$this->setDatabaseProvider( $dbProvider );
$this->wikiPageFactory = $wikiPageFactory;
$this->redirectLookup = $redirectLookup;
}
/** @inheritDoc */
public function isExpensive() {
return true;
}
/** @inheritDoc */
public function isSyndicated() {
return false;
}
/** @inheritDoc */
protected function sortDescending() {
return false;
}
/** @inheritDoc */
public function getQueryInfo() {
return [
'tables' => [ 'page', 'redirect' ],
'fields' => [ 'namespace' => 'page_namespace',
'title' => 'page_title',
'rd_namespace',
'rd_title',
'rd_fragment',
'rd_interwiki',
],
'conds' => [ 'page_is_redirect' => 1 ],
'join_conds' => [ 'redirect' => [
'LEFT JOIN', 'rd_from=page_id' ],
]
];
}
/** @inheritDoc */
protected function getOrderFields() {
return [ 'page_namespace', 'page_title' ];
}
/**
* Cache page existence for performance
*
* @param IReadableDatabase $db
* @param IResultWrapper $res
*/
public function preprocessResults( $db, $res ) {
if ( !$res->numRows() ) {
return;
}
$batch = $this->linkBatchFactory->newLinkBatch()->setCaller( __METHOD__ );
foreach ( $res as $row ) {
$batch->add( $row->namespace, $row->title );
$redirTarget = $this->getRedirectTarget( $row );
if ( $redirTarget ) {
$batch->addObj( $redirTarget );
}
}
$batch->execute();
// Back to start for display
$res->seek( 0 );
}
protected function getRedirectTarget( stdClass $row ): ?Title {
if ( isset( $row->rd_title ) ) {
return Title::makeTitle(
$row->rd_namespace,
$row->rd_title,
$row->rd_fragment,
$row->rd_interwiki
);
} else {
$title = Title::makeTitle( $row->namespace, $row->title );
if ( !$title->canExist() ) {
return null;
}
return Title::castFromLinkTarget(
$this->redirectLookup->getRedirectTarget( $title )
);
}
}
/**
* @param Skin $skin
* @param stdClass $result Result row
* @return string
*/
public function formatResult( $skin, $result ) {
$linkRenderer = $this->getLinkRenderer();
# Make a link to the redirect itself
$rd_title = Title::makeTitle( $result->namespace, $result->title );
$rd_link = $linkRenderer->makeLink(
$rd_title,
null,
[],
[ 'redirect' => 'no' ]
);
# Find out where the redirect leads
$target = $this->getRedirectTarget( $result );
if ( $target ) {
# Make a link to the destination page
$lang = $this->getLanguage();
$arr = $lang->getArrow();
$rd_link = Html::rawElement( 'bdi', [ 'dir' => $lang->getDir() ], $rd_link );
$targetLink = $linkRenderer->makeLink( $target, $target->getFullText() );
$targetLink = Html::rawElement( 'bdi', [ 'dir' => $lang->getDir() ], $targetLink );
return "$rd_link $arr $targetLink";
} else {
return "<del>$rd_link</del>";
}
}
/** @inheritDoc */
public function execute( $par ) {
$this->addHelpLink( 'Help:Redirects' );
parent::execute( $par );
}
/** @inheritDoc */
protected function getGroupName() {
return 'pages';
}
}
/** @deprecated class alias since 1.41 */
class_alias( SpecialListRedirects::class, 'SpecialListRedirects' );

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Oct 4 2026, 20:54 (5 w, 5 d ago)
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SpecialListRedirects.php (4 KB)

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