130 lines
No EOL
3.9 KiB
PHP
130 lines
No EOL
3.9 KiB
PHP
<?php
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/*
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* Created on May 13, 2007
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*
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* API for MediaWiki 1.8+
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*
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* Copyright (C) 2006 Yuri Astrakhan <Firstname><Lastname>@gmail.com
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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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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*/
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if ( !defined( 'MEDIAWIKI' ) ) {
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// Eclipse helper - will be ignored in production
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require_once ( "ApiQueryBase.php" );
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}
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/**
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* A query module to list all langlinks (links to correspanding foreign language pages).
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*
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* @ingroup API
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*/
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class ApiQueryLangLinks extends ApiQueryBase {
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public function __construct( $query, $moduleName ) {
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parent :: __construct( $query, $moduleName, 'll' );
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}
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public function execute() {
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if ( $this->getPageSet()->getGoodTitleCount() == 0 )
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return;
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$params = $this->extractRequestParams();
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$this->addFields( array (
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'll_from',
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'll_lang',
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'll_title'
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) );
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$this->addTables( 'langlinks' );
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$this->addWhereFld( 'll_from', array_keys( $this->getPageSet()->getGoodTitles() ) );
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if ( !is_null( $params['continue'] ) ) {
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$cont = explode( '|', $params['continue'] );
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if ( count( $cont ) != 2 )
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$this->dieUsage( "Invalid continue param. You should pass the " .
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"original value returned by the previous query", "_badcontinue" );
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$llfrom = intval( $cont[0] );
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$lllang = $this->getDB()->strencode( $cont[1] );
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$this->addWhere( "ll_from > $llfrom OR " .
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"(ll_from = $llfrom AND " .
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"ll_lang >= '$lllang')" );
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}
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// Don't order by ll_from if it's constant in the WHERE clause
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if ( count( $this->getPageSet()->getGoodTitles() ) == 1 )
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$this->addOption( 'ORDER BY', 'll_lang' );
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else
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$this->addOption( 'ORDER BY', 'll_from, ll_lang' );
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$this->addOption( 'LIMIT', $params['limit'] + 1 );
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$res = $this->select( __METHOD__ );
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$count = 0;
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$db = $this->getDB();
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while ( $row = $db->fetchObject( $res ) ) {
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if ( ++$count > $params['limit'] ) {
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// We've reached the one extra which shows that
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// there are additional pages to be had. Stop here...
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$this->setContinueEnumParameter( 'continue', "{$row->ll_from}|{$row->ll_lang}" );
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break;
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}
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$entry = array( 'lang' => $row->ll_lang );
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ApiResult :: setContent( $entry, $row->ll_title );
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$fit = $this->addPageSubItem( $row->ll_from, $entry );
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if ( !$fit )
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{
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$this->setContinueEnumParameter( 'continue', "{$row->ll_from}|{$row->ll_lang}" );
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break;
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}
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}
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$db->freeResult( $res );
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}
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public function getAllowedParams() {
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return array(
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'limit' => array(
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ApiBase :: PARAM_DFLT => 10,
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ApiBase :: PARAM_TYPE => 'limit',
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ApiBase :: PARAM_MIN => 1,
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ApiBase :: PARAM_MAX => ApiBase :: LIMIT_BIG1,
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ApiBase :: PARAM_MAX2 => ApiBase :: LIMIT_BIG2
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),
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'continue' => null,
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);
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}
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public function getParamDescription () {
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return array(
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'limit' => 'How many langlinks to return',
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'continue' => 'When more results are available, use this to continue',
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);
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}
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public function getDescription() {
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return 'Returns all interlanguage links from the given page(s)';
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}
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protected function getExamples() {
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return array (
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"Get interlanguage links from the [[Main Page]]:",
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" api.php?action=query&prop=langlinks&titles=Main%20Page&redirects",
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);
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}
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public function getVersion() {
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return __CLASS__ . ': $Id$';
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}
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} |