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<?php
/**
* Implements Special:Mostlinked
*
* Copyright © 2005 Ævar Arnfjörð Bjarmason, 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 Ævar Arnfjörð Bjarmason <avarab@gmail.com>
* @author Rob Church <robchur@gmail.com>
*/
/**
* A special page to show pages ordered by the number of pages linking to them.
*
* @ingroup SpecialPage
*/
class MostlinkedPage extends QueryPage {
function __construct( $name = 'Mostlinked' ) {
parent::__construct( $name );
}
function isExpensive() {
return true;
}
function isSyndicated() {
return false;
}
function getQueryInfo() {
return array (
'tables' => array ( 'pagelinks', 'page' ),
'fields' => array ( 'namespace' => 'pl_namespace',
'title' => 'pl_title',
'value' => 'COUNT(*)',
'page_namespace' ),
'options' => array ( 'HAVING' => 'COUNT(*) > 1',
'GROUP BY' => array( 'pl_namespace', 'pl_title',
'page_namespace' ) ),
'join_conds' => array ( 'page' => array ( 'LEFT JOIN',
array ( 'page_namespace = pl_namespace',
'page_title = pl_title' ) ) )
);
}
/**
* Pre-fill the link cache
*
* @param $db DatabaseBase
* @param $res
*/
function preprocessResults( $db, $res ) {
if ( $res->numRows() > 0 ) {
$linkBatch = new LinkBatch();
foreach ( $res as $row ) {
$linkBatch->add( $row->namespace, $row->title );
}
$res->seek( 0 );
$linkBatch->execute();
}
}
/**
* Make a link to "what links here" for the specified title
*
* @param $title Title being queried
* @param string $caption text to display on the link
* @return String
*/
function makeWlhLink( $title, $caption ) {
$wlh = SpecialPage::getTitleFor( 'Whatlinkshere', $title->getPrefixedDBkey() );
return Linker::linkKnown( $wlh, $caption );
}
/**
* Make links to the page corresponding to the item, and the "what links here" page for it
*
* @param $skin Skin to be used
* @param $result Result row
* @return string
*/
function formatResult( $skin, $result ) {
$title = Title::makeTitleSafe( $result->namespace, $result->title );
if ( !$title ) {
return Html::element( 'span', array( 'class' => 'mw-invalidtitle' ),
Linker::getInvalidTitleDescription( $this->getContext(), $result->namespace, $result->title ) );
}
$link = Linker::link( $title );
$wlh = $this->makeWlhLink( $title,
$this->msg( 'nlinks' )->numParams( $result->value )->escaped() );
return $this->getLanguage()->specialList( $link, $wlh );
}
protected function getGroupName() {
return 'highuse';
}
}