Merge "Make sure images that don't have an explicit alignment get aligned right"
[mediawiki.git] / includes / api / ApiQueryIWLinks.php
blobf38a7b17edf19a90047a75221e066f57f33ef7dc
1 <?php
2 /**
3 * API for MediaWiki 1.17+
5 * Created on May 14, 2010
7 * Copyright © 2010 Sam Reed
8 * Copyright © 2006 Yuri Astrakhan "<Firstname><Lastname>@gmail.com"
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License along
21 * with this program; if not, write to the Free Software Foundation, Inc.,
22 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
23 * http://www.gnu.org/copyleft/gpl.html
25 * @file
28 /**
29 * A query module to list all interwiki links on a page
31 * @ingroup API
33 class ApiQueryIWLinks extends ApiQueryBase {
35 public function __construct( ApiQuery $query, $moduleName ) {
36 parent::__construct( $query, $moduleName, 'iw' );
39 public function execute() {
40 if ( $this->getPageSet()->getGoodTitleCount() == 0 ) {
41 return;
44 $params = $this->extractRequestParams();
46 if ( isset( $params['title'] ) && !isset( $params['prefix'] ) ) {
47 $this->dieUsageMsg( array( 'missingparam', 'prefix' ) );
50 $this->addFields( array(
51 'iwl_from',
52 'iwl_prefix',
53 'iwl_title'
54 ) );
56 $this->addTables( 'iwlinks' );
57 $this->addWhereFld( 'iwl_from', array_keys( $this->getPageSet()->getGoodTitles() ) );
59 if ( !is_null( $params['continue'] ) ) {
60 $cont = explode( '|', $params['continue'] );
61 $this->dieContinueUsageIf( count( $cont ) != 3 );
62 $op = $params['dir'] == 'descending' ? '<' : '>';
63 $db = $this->getDB();
64 $iwlfrom = intval( $cont[0] );
65 $iwlprefix = $db->addQuotes( $cont[1] );
66 $iwltitle = $db->addQuotes( $cont[2] );
67 $this->addWhere(
68 "iwl_from $op $iwlfrom OR " .
69 "(iwl_from = $iwlfrom AND " .
70 "(iwl_prefix $op $iwlprefix OR " .
71 "(iwl_prefix = $iwlprefix AND " .
72 "iwl_title $op= $iwltitle)))"
76 $sort = ( $params['dir'] == 'descending' ? ' DESC' : '' );
77 if ( isset( $params['prefix'] ) ) {
78 $this->addWhereFld( 'iwl_prefix', $params['prefix'] );
79 if ( isset( $params['title'] ) ) {
80 $this->addWhereFld( 'iwl_title', $params['title'] );
81 $this->addOption( 'ORDER BY', 'iwl_from' . $sort );
82 } else {
83 $this->addOption( 'ORDER BY', array(
84 'iwl_from' . $sort,
85 'iwl_title' . $sort
86 ) );
88 } else {
89 // Don't order by iwl_from if it's constant in the WHERE clause
90 if ( count( $this->getPageSet()->getGoodTitles() ) == 1 ) {
91 $this->addOption( 'ORDER BY', 'iwl_prefix' . $sort );
92 } else {
93 $this->addOption( 'ORDER BY', array(
94 'iwl_from' . $sort,
95 'iwl_prefix' . $sort,
96 'iwl_title' . $sort
97 ) );
101 $this->addOption( 'LIMIT', $params['limit'] + 1 );
102 $res = $this->select( __METHOD__ );
104 $count = 0;
105 foreach ( $res as $row ) {
106 if ( ++$count > $params['limit'] ) {
107 // We've reached the one extra which shows that
108 // there are additional pages to be had. Stop here...
109 $this->setContinueEnumParameter(
110 'continue',
111 "{$row->iwl_from}|{$row->iwl_prefix}|{$row->iwl_title}"
113 break;
115 $entry = array( 'prefix' => $row->iwl_prefix );
117 if ( $params['url'] ) {
118 $title = Title::newFromText( "{$row->iwl_prefix}:{$row->iwl_title}" );
119 if ( $title ) {
120 $entry['url'] = wfExpandUrl( $title->getFullURL(), PROTO_CURRENT );
124 ApiResult::setContent( $entry, $row->iwl_title );
125 $fit = $this->addPageSubItem( $row->iwl_from, $entry );
126 if ( !$fit ) {
127 $this->setContinueEnumParameter(
128 'continue',
129 "{$row->iwl_from}|{$row->iwl_prefix}|{$row->iwl_title}"
131 break;
136 public function getCacheMode( $params ) {
137 return 'public';
140 public function getAllowedParams() {
141 return array(
142 'url' => false,
143 'limit' => array(
144 ApiBase::PARAM_DFLT => 10,
145 ApiBase::PARAM_TYPE => 'limit',
146 ApiBase::PARAM_MIN => 1,
147 ApiBase::PARAM_MAX => ApiBase::LIMIT_BIG1,
148 ApiBase::PARAM_MAX2 => ApiBase::LIMIT_BIG2
150 'continue' => null,
151 'prefix' => null,
152 'title' => null,
153 'dir' => array(
154 ApiBase::PARAM_DFLT => 'ascending',
155 ApiBase::PARAM_TYPE => array(
156 'ascending',
157 'descending'
163 public function getParamDescription() {
164 return array(
165 'url' => 'Whether to get the full URL',
166 'limit' => 'How many interwiki links to return',
167 'continue' => 'When more results are available, use this to continue',
168 'prefix' => 'Prefix for the interwiki',
169 'title' => "Interwiki link to search for. Must be used with {$this->getModulePrefix()}prefix",
170 'dir' => 'The direction in which to list',
174 public function getResultProperties() {
175 return array(
176 '' => array(
177 'prefix' => 'string',
178 'url' => array(
179 ApiBase::PROP_TYPE => 'string',
180 ApiBase::PROP_NULLABLE => true
182 '*' => 'string'
187 public function getDescription() {
188 return 'Returns all interwiki links from the given page(s).';
191 public function getPossibleErrors() {
192 return array_merge( parent::getPossibleErrors(), array(
193 array( 'missingparam', 'prefix' ),
194 ) );
197 public function getExamples() {
198 return array(
199 'api.php?action=query&prop=iwlinks&titles=Main%20Page'
200 => 'Get interwiki links from the [[Main Page]]',
204 public function getHelpUrls() {
205 return 'https://www.mediawiki.org/wiki/API:Iwlinks';