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<?php
/**
* Implements Special:Listredirects
*
* Copyright © 2006 Rob Church
*
* 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 Rob Church <robchur@gmail.com>
*/
/**
* Special:Listredirects - Lists all the redirects on the wiki.
* @ingroup SpecialPage
*/
class ListredirectsPage extends QueryPage {
function __construct( $name = 'Listredirects' ) {
parent::__construct( $name );
}
function isExpensive() {
return true;
}
function isSyndicated() {
return false;
}
function sortDescending() {
return false;
}
function getQueryInfo() {
return array(
'tables' => array( 'p1' => 'page', 'redirect', 'p2' => 'page' ),
'fields' => array( 'namespace' => 'p1.page_namespace',
'title' => 'p1.page_title',
'value' => 'p1.page_title',
'rd_namespace',
'rd_title',
'rd_fragment',
'rd_interwiki',
'redirid' => 'p2.page_id' ),
'conds' => array( 'p1.page_is_redirect' => 1 ),
'join_conds' => array( 'redirect' => array(
'LEFT JOIN', 'rd_from=p1.page_id' ),
'p2' => array( 'LEFT JOIN', array(
'p2.page_namespace=rd_namespace',
'p2.page_title=rd_title' ) ) )
);
}
function getOrderFields() {
return array( 'p1.page_namespace', 'p1.page_title' );
}
/**
* Cache page existence for performance
*
* @param DatabaseBase $db
* @param ResultWrapper $res
*/
function preprocessResults( $db, $res ) {
$batch = new LinkBatch;
foreach ( $res as $row ) {
$batch->add( $row->namespace, $row->title );
$batch->addObj( $this->getRedirectTarget( $row ) );
}
$batch->execute();
// Back to start for display
if ( $res->numRows() > 0 ) {
// If there are no rows we get an error seeking.
$db->dataSeek( $res, 0 );
}
}
protected function getRedirectTarget( $row ) {
if ( isset( $row->rd_title ) ) {
return Title::makeTitle( $row->rd_namespace,
$row->rd_title, $row->rd_fragment,
$row->rd_interwiki
);
} else {
$title = Title::makeTitle( $row->namespace, $row->title );
$article = WikiPage::factory( $title );
return $article->getRedirectTarget();
}
}
/**
* @param Skin $skin
* @param object $result Result row
* @return string
*/
function formatResult( $skin, $result ) {
# Make a link to the redirect itself
$rd_title = Title::makeTitle( $result->namespace, $result->title );
$rd_link = Linker::link(
$rd_title,
null,
array(),
array( 'redirect' => 'no' )
);
# Find out where the redirect leads
$target = $this->getRedirectTarget( $result );
if ( $target ) {
# Make a link to the destination page
$lang = $this->getLanguage();
$arr = $lang->getArrow() . $lang->getDirMark();
$targetLink = Linker::link( $target );
return "$rd_link $arr $targetLink";
} else {
return "<del>$rd_link</del>";
}
}
protected function getGroupName() {
return 'pages';
}
}
|
