<?php
-
-/*
- * Created on May 13, 2007
+/**
*
- * API for MediaWiki 1.8+
*
- * Copyright (C) 2006 Yuri Astrakhan <Firstname><Lastname>@gmail.com
+ * Created on May 13, 2007
+ *
+ * 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
+ *
+ * @file
*/
-if (!defined('MEDIAWIKI')) {
- // Eclipse helper - will be ignored in production
- require_once ("ApiQueryBase.php");
-}
-
/**
- * A query module to list all langlinks (links to correspanding foreign language pages).
- *
- * @addtogroup API
+ * A query module to list all langlinks (links to corresponding foreign language pages).
+ *
+ * @ingroup API
*/
class ApiQueryLangLinks extends ApiQueryBase {
- public function __construct($query, $moduleName) {
- parent :: __construct($query, $moduleName, 'll');
+ public function __construct( ApiQuery $query, $moduleName ) {
+ parent::__construct( $query, $moduleName, 'll' );
}
public function execute() {
- $this->addFields(array (
+ if ( $this->getPageSet()->getGoodTitleCount() == 0 ) {
+ return;
+ }
+
+ $params = $this->extractRequestParams();
+ $prop = array_flip( (array)$params['prop'] );
+
+ if ( isset( $params['title'] ) && !isset( $params['lang'] ) ) {
+ $this->dieWithError(
+ [
+ 'apierror-invalidparammix-mustusewith',
+ $this->encodeParamName( 'title' ),
+ $this->encodeParamName( 'lang' ),
+ ],
+ 'invalidparammix'
+ );
+ }
+
+ // Handle deprecated param
+ $this->requireMaxOneParameter( $params, 'url', 'prop' );
+ if ( $params['url'] ) {
+ $prop = [ 'url' => 1 ];
+ }
+
+ $this->addFields( [
'll_from',
'll_lang',
'll_title'
- ));
-
- $this->addTables('langlinks');
- $this->addWhereFld('ll_from', array_keys($this->getPageSet()->getGoodTitles()));
- $this->addOption('ORDER BY', "ll_from, ll_lang");
- $res = $this->select(__METHOD__);
-
- $data = array();
- $lastId = 0; // database has no ID 0
- $db = $this->getDB();
- while ($row = $db->fetchObject($res)) {
-
- if ($lastId != $row->ll_from) {
- if($lastId != 0) {
- $this->addPageSubItems($lastId, $data);
- $data = array();
- }
- $lastId = $row->ll_from;
- }
+ ] );
- $entry = array('lang'=>$row->ll_lang);
- ApiResult :: setContent($entry, $row->ll_title);
- $data[] = $entry;
+ $this->addTables( 'langlinks' );
+ $this->addWhereFld( 'll_from', array_keys( $this->getPageSet()->getGoodTitles() ) );
+ if ( !is_null( $params['continue'] ) ) {
+ $cont = explode( '|', $params['continue'] );
+ $this->dieContinueUsageIf( count( $cont ) != 2 );
+ $op = $params['dir'] == 'descending' ? '<' : '>';
+ $llfrom = intval( $cont[0] );
+ $lllang = $this->getDB()->addQuotes( $cont[1] );
+ $this->addWhere(
+ "ll_from $op $llfrom OR " .
+ "(ll_from = $llfrom AND " .
+ "ll_lang $op= $lllang)"
+ );
}
- if($lastId != 0) {
- $this->addPageSubItems($lastId, $data);
+ // FIXME: (follow-up) To allow extensions to add to the language links, we need
+ // to load them all, add the extra links, then apply paging.
+ // Should not be terrible, it's not going to be more than a few hundred links.
+
+ // Note that, since (ll_from, ll_lang) is a unique key, we don't need
+ // to sort by ll_title to ensure deterministic ordering.
+ $sort = ( $params['dir'] == 'descending' ? ' DESC' : '' );
+ if ( isset( $params['lang'] ) ) {
+ $this->addWhereFld( 'll_lang', $params['lang'] );
+ if ( isset( $params['title'] ) ) {
+ $this->addWhereFld( 'll_title', $params['title'] );
+ }
+ $this->addOption( 'ORDER BY', 'll_from' . $sort );
+ } else {
+ // Don't order by ll_from if it's constant in the WHERE clause
+ if ( count( $this->getPageSet()->getGoodTitles() ) == 1 ) {
+ $this->addOption( 'ORDER BY', 'll_lang' . $sort );
+ } else {
+ $this->addOption( 'ORDER BY', [
+ 'll_from' . $sort,
+ 'll_lang' . $sort
+ ] );
+ }
}
- $db->freeResult($res);
+ $this->addOption( 'LIMIT', $params['limit'] + 1 );
+ $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...
+ $this->setContinueEnumParameter( 'continue', "{$row->ll_from}|{$row->ll_lang}" );
+ break;
+ }
+ $entry = [ 'lang' => $row->ll_lang ];
+ if ( isset( $prop['url'] ) ) {
+ $title = Title::newFromText( "{$row->ll_lang}:{$row->ll_title}" );
+ if ( $title ) {
+ $entry['url'] = wfExpandUrl( $title->getFullURL(), PROTO_CURRENT );
+ }
+ }
+ if ( isset( $prop['langname'] ) ) {
+ $entry['langname'] = Language::fetchLanguageName( $row->ll_lang, $params['inlanguagecode'] );
+ }
+ if ( isset( $prop['autonym'] ) ) {
+ $entry['autonym'] = Language::fetchLanguageName( $row->ll_lang );
+ }
+ ApiResult::setContentValue( $entry, 'title', $row->ll_title );
+ $fit = $this->addPageSubItem( $row->ll_from, $entry );
+ if ( !$fit ) {
+ $this->setContinueEnumParameter( 'continue', "{$row->ll_from}|{$row->ll_lang}" );
+ break;
+ }
+ }
}
- protected function getDescription() {
- return 'Returns all interlanguage links from the given page(s)';
+ public function getCacheMode( $params ) {
+ return 'public';
}
- protected function getExamples() {
- return array (
- "Get interlanguage links from the [[Main Page]]:",
- " api.php?action=query&prop=langlinks&titles=Main%20Page&redirects",
- );
+ public function getAllowedParams() {
+ global $wgContLang;
+ return [
+ 'prop' => [
+ ApiBase::PARAM_ISMULTI => true,
+ ApiBase::PARAM_TYPE => [
+ 'url',
+ 'langname',
+ 'autonym',
+ ],
+ ApiBase::PARAM_HELP_MSG_PER_VALUE => [],
+ ],
+ 'lang' => null,
+ 'title' => null,
+ 'dir' => [
+ ApiBase::PARAM_DFLT => 'ascending',
+ ApiBase::PARAM_TYPE => [
+ 'ascending',
+ 'descending'
+ ]
+ ],
+ 'inlanguagecode' => $wgContLang->getCode(),
+ 'limit' => [
+ ApiBase::PARAM_DFLT => 10,
+ ApiBase::PARAM_TYPE => 'limit',
+ ApiBase::PARAM_MIN => 1,
+ ApiBase::PARAM_MAX => ApiBase::LIMIT_BIG1,
+ ApiBase::PARAM_MAX2 => ApiBase::LIMIT_BIG2
+ ],
+ 'continue' => [
+ ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
+ ],
+ 'url' => [
+ ApiBase::PARAM_DFLT => false,
+ ApiBase::PARAM_DEPRECATED => true,
+ ],
+ ];
}
- public function getVersion() {
- return __CLASS__ . ': $Id: ApiQueryLangLinks.php 23819 2007-07-07 03:05:09Z yurik $';
+ protected function getExamplesMessages() {
+ return [
+ 'action=query&prop=langlinks&titles=Main%20Page&redirects='
+ => 'apihelp-query+langlinks-example-simple',
+ ];
}
-}
+ public function getHelpUrls() {
+ return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Langlinks';
+ }
+}