e97ba4a5b0
Every QueryPage needs a database to work Bug: T259960 Change-Id: Ibcc192c21fa68371ea047b668e131e3293868fe2
97 lines
2.5 KiB
PHP
97 lines
2.5 KiB
PHP
<?php
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/**
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* Implements Special:Unusedimages
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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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* @ingroup SpecialPage
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*/
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use Wikimedia\Rdbms\ILoadBalancer;
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/**
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* A special page that lists unused images
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*
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* @ingroup SpecialPage
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*/
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class SpecialUnusedImages extends ImageQueryPage {
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/**
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* @param ILoadBalancer $loadBalancer
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*/
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public function __construct( ILoadBalancer $loadBalancer ) {
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parent::__construct( 'Unusedimages' );
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$this->setDBLoadBalancer( $loadBalancer );
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}
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public function isExpensive() {
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return true;
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}
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protected function sortDescending() {
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return false;
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}
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public function isSyndicated() {
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return false;
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}
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public function getQueryInfo() {
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$retval = [
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'tables' => [ 'image', 'imagelinks' ],
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'fields' => [
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'namespace' => NS_FILE,
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'title' => 'img_name',
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'value' => 'img_timestamp',
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],
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'conds' => [ 'il_to IS NULL' ],
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'join_conds' => [ 'imagelinks' => [ 'LEFT JOIN', 'il_to = img_name' ] ]
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];
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if ( $this->getConfig()->get( 'CountCategorizedImagesAsUsed' ) ) {
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// Order is significant
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$retval['tables'] = [ 'image', 'page', 'categorylinks',
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'imagelinks' ];
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$retval['conds']['page_namespace'] = NS_FILE;
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$retval['conds'][] = 'cl_from IS NULL';
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$retval['conds'][] = 'img_name = page_title';
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$retval['join_conds']['categorylinks'] = [
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'LEFT JOIN', 'cl_from = page_id' ];
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$retval['join_conds']['imagelinks'] = [
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'LEFT JOIN', 'il_to = page_title' ];
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}
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return $retval;
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}
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public function usesTimestamps() {
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return true;
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}
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protected function getPageHeader() {
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if ( $this->getConfig()->get( 'CountCategorizedImagesAsUsed' ) ) {
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return $this->msg(
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'unusedimagestext-categorizedimgisused'
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)->parseAsBlock();
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}
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return $this->msg( 'unusedimagestext' )->parseAsBlock();
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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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