3dc4981dfb
QueryPage inherits from SpecialPage and thus $this->msg() returns a message with context set to the appropriate request context (language and title). Bug: 63110 Change-Id: Iaf9252e5a25eb618d7c1975fdb6e5ff96a50225b
112 lines
2.9 KiB
PHP
112 lines
2.9 KiB
PHP
<?php
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/**
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* Implements Special:ListDuplicatedFiles
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*
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* Copyright © 2013 Brian Wolff
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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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* @author Brian Wolff
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*/
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/**
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* Special:ListDuplicatedFiles Lists all files where the current version is
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* a duplicate of the current version of some other file.
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* @ingroup SpecialPage
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*/
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class ListDuplicatedFilesPage extends QueryPage {
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function __construct( $name = 'ListDuplicatedFiles' ) {
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parent::__construct( $name );
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}
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function isExpensive() {
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return true;
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}
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function isSyndicated() {
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return false;
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}
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/**
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* Get all the duplicates by grouping on sha1s.
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*
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* A cheaper (but less useful) version of this
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* query would be to not care how many duplicates a
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* particular file has, and do a self-join on image table.
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* However this version should be no more expensive then
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* Special:MostLinked, which seems to get handled fine
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* with however we are doing cached special pages.
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*/
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function getQueryInfo() {
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return array(
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'tables' => array( 'image' ),
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'fields' => array(
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'namespace' => NS_FILE,
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'title' => 'MIN(img_name)',
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'value' => 'count(*)'
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),
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'options' => array(
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'GROUP BY' => 'img_sha1',
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'HAVING' => 'count(*) > 1',
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),
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);
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}
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/**
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* Pre-fill the link cache
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*
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* @param DatabaseBase $db
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* @param ResultWrapper $res
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*/
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function preprocessResults( $db, $res ) {
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if ( $res->numRows() > 0 ) {
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$linkBatch = new LinkBatch();
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foreach ( $res as $row ) {
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$linkBatch->add( $row->namespace, $row->title );
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}
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$res->seek( 0 );
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$linkBatch->execute();
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}
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}
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/**
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* @param Skin $skin
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* @param object $result Result row
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* @return string
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*/
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function formatResult( $skin, $result ) {
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// Future version might include a list of the first 5 duplicates
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// perhaps separated by an "↔".
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$image1 = Title::makeTitle( $result->namespace, $result->title );
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$dupeSearch = SpecialPage::getTitleFor( 'FileDuplicateSearch', $image1->getDBKey() );
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$msg = $this->msg( 'listduplicatedfiles-entry' )
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->params( $image1->getText() )
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->numParams( $result->value - 1 )
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->params( $dupeSearch->getPrefixedDBKey() );
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return $msg->parse();
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}
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protected function getGroupName() {
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return 'media';
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}
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}
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