includes/specials/SpecialMostCategories.php
<?php
/**
* Implements Special:Mostcategories
*
* Copyright © 2005 Ævar Arnfjörð Bjarmason
*
* 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
* @ingroup SpecialPage
* @author Ævar Arnfjörð Bjarmason <avarab@gmail.com>
*/
namespace MediaWiki\Specials;
use MediaWiki\Cache\LinkBatchFactory;
use MediaWiki\Html\Html;
use MediaWiki\Linker\Linker;
use MediaWiki\SpecialPage\QueryPage;
use MediaWiki\Title\NamespaceInfo;
use MediaWiki\Title\Title;
use Skin;
use stdClass;
use Wikimedia\Rdbms\IConnectionProvider;
use Wikimedia\Rdbms\IDatabase;
use Wikimedia\Rdbms\IResultWrapper;
/**
* A special page that list pages that have highest category count
*
* @ingroup SpecialPage
*/
class SpecialMostCategories extends QueryPage {
private NamespaceInfo $namespaceInfo;
/**
* @param NamespaceInfo $namespaceInfo
* @param IConnectionProvider $dbProvider
* @param LinkBatchFactory $linkBatchFactory
*/
public function __construct(
NamespaceInfo $namespaceInfo,
IConnectionProvider $dbProvider,
LinkBatchFactory $linkBatchFactory
) {
parent::__construct( 'Mostcategories' );
$this->namespaceInfo = $namespaceInfo;
$this->setDatabaseProvider( $dbProvider );
$this->setLinkBatchFactory( $linkBatchFactory );
}
public function isExpensive() {
return true;
}
public function isSyndicated() {
return false;
}
public function getQueryInfo() {
return [
'tables' => [ 'categorylinks', 'page' ],
'fields' => [
'namespace' => 'page_namespace',
'title' => 'page_title',
'value' => 'COUNT(*)'
],
'conds' => [
'page_namespace' => $this->namespaceInfo->getContentNamespaces()
],
'options' => [
'HAVING' => 'COUNT(*) > 1',
'GROUP BY' => [ 'page_namespace', 'page_title' ]
],
'join_conds' => [
'page' => [
'LEFT JOIN',
'page_id = cl_from'
]
]
];
}
/**
* @param IDatabase $db
* @param IResultWrapper $res
*/
public function preprocessResults( $db, $res ) {
$this->executeLBFromResultWrapper( $res );
}
/**
* @param Skin $skin
* @param stdClass $result Result row
* @return string
*/
public function formatResult( $skin, $result ) {
$title = Title::makeTitleSafe( $result->namespace, $result->title );
if ( !$title ) {
return Html::element(
'span',
[ 'class' => 'mw-invalidtitle' ],
Linker::getInvalidTitleDescription(
$this->getContext(),
$result->namespace,
$result->title
)
);
}
$linkRenderer = $this->getLinkRenderer();
if ( $this->isCached() ) {
$link = $linkRenderer->makeLink( $title );
} else {
$link = $linkRenderer->makeKnownLink( $title );
}
$count = $this->msg( 'ncategories' )->numParams( $result->value )->escaped();
return $this->getLanguage()->specialList( $link, $count );
}
protected function getGroupName() {
return 'highuse';
}
}
/**
* Retain the old class name for backwards compatibility.
* @deprecated since 1.41
*/
class_alias( SpecialMostCategories::class, 'SpecialMostCategories' );