138 lines
3.8 KiB
PHP
138 lines
3.8 KiB
PHP
<?php
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/**
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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*/
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namespace MediaWiki\Specials;
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use MediaWiki\Cache\LinkBatchFactory;
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use MediaWiki\Languages\LanguageConverterFactory;
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use MediaWiki\Linker\LinksMigration;
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use MediaWiki\SpecialPage\PageQueryPage;
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use MediaWiki\Title\NamespaceInfo;
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use Wikimedia\Rdbms\IConnectionProvider;
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/**
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* List of articles with no article linking to them,
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* thus being lonely.
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*
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* @ingroup SpecialPage
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*/
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class SpecialLonelyPages extends PageQueryPage {
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private NamespaceInfo $namespaceInfo;
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private LinksMigration $linksMigration;
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/**
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* @param NamespaceInfo $namespaceInfo
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* @param IConnectionProvider $dbProvider
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* @param LinkBatchFactory $linkBatchFactory
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* @param LanguageConverterFactory $languageConverterFactory
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* @param LinksMigration $linksMigration
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*/
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public function __construct(
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NamespaceInfo $namespaceInfo,
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IConnectionProvider $dbProvider,
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LinkBatchFactory $linkBatchFactory,
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LanguageConverterFactory $languageConverterFactory,
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LinksMigration $linksMigration
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) {
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parent::__construct( 'Lonelypages' );
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$this->namespaceInfo = $namespaceInfo;
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$this->setDatabaseProvider( $dbProvider );
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$this->setLinkBatchFactory( $linkBatchFactory );
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$this->setLanguageConverter( $languageConverterFactory->getLanguageConverter( $this->getContentLanguage() ) );
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$this->linksMigration = $linksMigration;
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}
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protected function getPageHeader() {
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return $this->msg( 'lonelypagestext' )->parseAsBlock();
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}
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protected function sortDescending() {
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return false;
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}
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public function isExpensive() {
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return true;
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}
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public function isSyndicated() {
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return false;
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}
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public function getQueryInfo() {
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$queryInfo = $this->linksMigration->getQueryInfo( 'pagelinks', 'pagelinks', 'LEFT JOIN' );
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$tables = [ 'page', 'linktarget', 'templatelinks', 'pagelinks' ];
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$conds = [
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'pl_from' => null,
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'page_namespace' => $this->namespaceInfo->getContentNamespaces(),
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'page_is_redirect' => 0,
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'tl_from' => null,
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];
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$joinConds = [
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'templatelinks' => [ 'LEFT JOIN', [ 'tl_target_id=lt_id' ] ],
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'linktarget' => [
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'LEFT JOIN', [
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"lt_namespace = page_namespace",
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"lt_title = page_title"
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]
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]
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];
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if ( !in_array( 'linktarget', $queryInfo['tables'] ) ) {
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$joinConds['pagelinks'] = [
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'LEFT JOIN', [
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"pl_namespace = page_namespace",
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"pl_title = page_title"
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]
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];
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}
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// Allow extensions to modify the query
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$this->getHookRunner()->onLonelyPagesQuery( $tables, $conds, $joinConds );
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return [
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'tables' => $tables,
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'fields' => [
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'namespace' => 'page_namespace',
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'title' => 'page_title',
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],
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'conds' => $conds,
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'join_conds' => array_merge( $joinConds, $queryInfo['joins'] )
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];
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}
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protected function getOrderFields() {
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// For some crazy reason ordering by a constant
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// causes a filesort in MySQL 5
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if ( count( $this->namespaceInfo->getContentNamespaces() ) > 1 ) {
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return [ 'page_namespace', 'page_title' ];
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} else {
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return [ 'page_title' ];
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}
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}
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protected function getGroupName() {
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return 'maintenance';
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}
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}
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/** @deprecated class alias since 1.41 */
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class_alias( SpecialLonelyPages::class, 'SpecialLonelyPages' );
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