<?php
-/*
+/**
* Created on May 13, 2007
*
* API for MediaWiki 1.8+
*
- * Copyright (C) 2006 Yuri Astrakhan <Firstname><Lastname>@gmail.com
+ * Copyright © 2006 Yuri Astrakhan <Firstname><Lastname>@gmail.com
*
* 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
*
* 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.,
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*/
-if (!defined('MEDIAWIKI')) {
+if ( !defined( 'MEDIAWIKI' ) ) {
// Eclipse helper - will be ignored in production
- require_once ("ApiQueryBase.php");
+ require_once( "ApiQueryBase.php" );
}
/**
* A query module to list all external URLs found on a given set of pages.
- *
- * @addtogroup API
+ *
+ * @ingroup API
*/
class ApiQueryExternalLinks extends ApiQueryBase {
- public function __construct($query, $moduleName) {
- parent :: __construct($query, $moduleName, 'el');
+ public function __construct( $query, $moduleName ) {
+ parent::__construct( $query, $moduleName, 'el' );
}
public function execute() {
+ if ( $this->getPageSet()->getGoodTitleCount() == 0 ) {
+ return;
+ }
- $this->addFields(array (
+ $params = $this->extractRequestParams();
+ $this->addFields( array(
'el_from',
'el_to'
- ));
-
- $this->addTables('externallinks');
- $this->addWhereFld('el_from', array_keys($this->getPageSet()->getGoodTitles()));
-
- $db = $this->getDB();
- $res = $this->select(__METHOD__);
-
- $data = array();
- $lastId = 0; // database has no ID 0
- while ($row = $db->fetchObject($res)) {
- if ($lastId != $row->el_from) {
- if($lastId != 0) {
- $this->addPageSubItems($lastId, $data);
- $data = array();
- }
- $lastId = $row->el_from;
+ ) );
+
+ $this->addTables( 'externallinks' );
+ $this->addWhereFld( 'el_from', array_keys( $this->getPageSet()->getGoodTitles() ) );
+
+ // Don't order by el_from if it's constant in the WHERE clause
+ if ( count( $this->getPageSet()->getGoodTitles() ) != 1 ) {
+ $this->addOption( 'ORDER BY', 'el_from' );
+ }
+
+ $this->addOption( 'LIMIT', $params['limit'] + 1 );
+ if ( !is_null( $params['offset'] ) ) {
+ $this->addOption( 'OFFSET', $params['offset'] );
+ }
+
+ $res = $this->select( __METHOD__ );
+
+ $count = 0;
+ foreach ( $res as $row ) {
+ if ( ++$count > $params['limit'] ) {
+ // We've reached the one extra which shows that
+ // there are additional pages to be had. Stop here...
+ $this->setContinueEnumParameter( 'offset', @$params['offset'] + $params['limit'] );
+ break;
}
-
$entry = array();
- ApiResult :: setContent($entry, $row->el_to);
- $data[] = $entry;
+ ApiResult::setContent( $entry, $row->el_to );
+ $fit = $this->addPageSubItem( $row->el_from, $entry );
+ if ( !$fit ) {
+ $this->setContinueEnumParameter( 'offset', @$params['offset'] + $count - 1 );
+ break;
+ }
}
+ }
- if($lastId != 0) {
- $this->addPageSubItems($lastId, $data);
- }
+ public function getCacheMode( $params ) {
+ return 'public';
+ }
+
+ public function getAllowedParams() {
+ return array(
+ 'limit' => array(
+ ApiBase::PARAM_DFLT => 10,
+ ApiBase::PARAM_TYPE => 'limit',
+ ApiBase::PARAM_MIN => 1,
+ ApiBase::PARAM_MAX => ApiBase::LIMIT_BIG1,
+ ApiBase::PARAM_MAX2 => ApiBase::LIMIT_BIG2
+ ),
+ 'offset' => null,
+ );
+ }
- $db->freeResult($res);
+ public function getParamDescription() {
+ return array(
+ 'limit' => 'How many links to return',
+ 'offset' => 'When more results are available, use this to continue',
+ );
}
public function getDescription() {
}
protected function getExamples() {
- return array (
- "Get a list of external links on the [[Main Page]]:",
- " api.php?action=query&prop=extlinks&titles=Main%20Page",
- );
+ return array(
+ 'Get a list of external links on the [[Main Page]]:',
+ ' api.php?action=query&prop=extlinks&titles=Main%20Page',
+ );
}
public function getVersion() {
return __CLASS__ . ': $Id$';
}
}
-