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SpecialDeadendPages.php
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SpecialDeadendPages.php
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<?php
/**
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
namespace MediaWiki\Specials;
use MediaWiki\Cache\LinkBatchFactory;
use MediaWiki\Languages\LanguageConverterFactory;
use MediaWiki\SpecialPage\PageQueryPage;
use MediaWiki\Title\NamespaceInfo;
use Wikimedia\Rdbms\IConnectionProvider;
/**
* List of pages that contain no links to other pages.
*
* @ingroup SpecialPage
*/
class SpecialDeadendPages extends PageQueryPage {
private NamespaceInfo $namespaceInfo;
/**
* @param NamespaceInfo $namespaceInfo
* @param IConnectionProvider $dbProvider
* @param LinkBatchFactory $linkBatchFactory
* @param LanguageConverterFactory $languageConverterFactory
*/
public function __construct(
NamespaceInfo $namespaceInfo,
IConnectionProvider $dbProvider,
LinkBatchFactory $linkBatchFactory,
LanguageConverterFactory $languageConverterFactory
) {
parent::__construct( 'Deadendpages' );
$this->namespaceInfo = $namespaceInfo;
$this->setDatabaseProvider( $dbProvider );
$this->setLinkBatchFactory( $linkBatchFactory );
$this->setLanguageConverter( $languageConverterFactory->getLanguageConverter( $this->getContentLanguage() ) );
}
protected function getPageHeader() {
return $this->msg( 'deadendpagestext' )->parseAsBlock();
}
/**
* LEFT JOIN is expensive
*
* @return bool
*/
public function isExpensive() {
return true;
}
public function isSyndicated() {
return false;
}
/**
* @return bool
*/
protected function sortDescending() {
return false;
}
public function getQueryInfo() {
return [
'tables' => [ 'page', 'pagelinks' ],
'fields' => [
'namespace' => 'page_namespace',
'title' => 'page_title',
],
'conds' => [
'pl_from' => null,
'page_namespace' => $this->namespaceInfo->getContentNamespaces(),
'page_is_redirect' => 0
],
'join_conds' => [
'pagelinks' => [
'LEFT JOIN',
[ 'page_id=pl_from' ]
]
]
];
}
protected function getOrderFields() {
// For some crazy reason ordering by a constant
// causes a filesort
if ( count( $this->namespaceInfo->getContentNamespaces() ) > 1 ) {
return [ 'page_namespace', 'page_title' ];
} else {
return [ 'page_title' ];
}
}
protected function getGroupName() {
return 'maintenance';
}
}
/** @deprecated class alias since 1.41 */
class_alias( SpecialDeadendPages::class, 'SpecialDeadendPages' );

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Sat, May 16, 15:15 (15 h, 43 m)
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SpecialDeadendPages.php (3 KB)

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