Support offsets in prefix searching
[mediawiki.git] / includes / specials / SpecialPageLanguage.php
blob2acf23cdcbdd8311ef84fe993ab9a1b1c73a44d1
1 <?php
2 /**
3 * Implements Special:PageLanguage
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 * http://www.gnu.org/copyleft/gpl.html
20 * @file
21 * @ingroup SpecialPage
22 * @author Kunal Grover
23 * @since 1.24
26 /**
27 * Special page for changing the content language of a page
29 * @ingroup SpecialPage
31 class SpecialPageLanguage extends FormSpecialPage {
32 /**
33 * @var string URL to go to if language change successful
35 private $goToUrl;
37 public function __construct() {
38 parent::__construct( 'PageLanguage', 'pagelang' );
41 protected function preText() {
42 $this->getOutput()->addModules( 'mediawiki.special.pageLanguage' );
45 protected function getFormFields() {
46 // Get default from the subpage of Special page
47 $defaultName = $this->par;
49 $page = array();
50 $page['pagename'] = array(
51 'type' => 'text',
52 'label-message' => 'pagelang-name',
53 'default' => $defaultName,
56 // Options for whether to use the default language or select language
57 $selectoptions = array(
58 (string)$this->msg( 'pagelang-use-default' )->escaped() => 1,
59 (string)$this->msg( 'pagelang-select-lang' )->escaped() => 2,
61 $page['selectoptions'] = array(
62 'id' => 'mw-pl-options',
63 'type' => 'radio',
64 'options' => $selectoptions,
65 'default' => 1
68 // Building a language selector
69 $userLang = $this->getLanguage()->getCode();
70 $languages = Language::fetchLanguageNames( $userLang, 'mwfile' );
71 ksort( $languages );
72 $options = array();
73 foreach ( $languages as $code => $name ) {
74 $options["$code - $name"] = $code;
77 $page['language'] = array(
78 'id' => 'mw-pl-languageselector',
79 'cssclass' => 'mw-languageselector',
80 'type' => 'select',
81 'options' => $options,
82 'label-message' => 'pagelang-language',
83 'default' => $this->getConfig()->get( 'LanguageCode' ),
86 return $page;
89 protected function postText() {
90 return $this->showLogFragment( $this->par );
93 public function alterForm( HTMLForm $form ) {
94 $form->setDisplayFormat( 'vform' );
95 $form->setWrapperLegend( false );
96 wfRunHooks( 'LanguageSelector', array( $this->getOutput(), 'mw-languageselector' ) );
99 /**
101 * @param array $data
102 * @return bool
104 public function onSubmit( array $data ) {
105 $title = Title::newFromText( $data['pagename'] );
107 // Check if title is valid
108 if ( !$title ) {
109 return false;
112 // Get the default language for the wiki
113 // Returns the default since the page is not loaded from DB
114 $defLang = $title->getPageLanguage()->getCode();
116 $pageId = $title->getArticleID();
118 // Check if article exists
119 if ( !$pageId ) {
120 return false;
123 // Load the page language from DB
124 $dbw = wfGetDB( DB_MASTER );
125 $langOld = $dbw->selectField(
126 'page',
127 'page_lang',
128 array( 'page_id' => $pageId ),
129 __METHOD__
132 // Url to redirect to after the operation
133 $this->goToUrl = $title->getFullURL();
135 // Check if user wants to use default language
136 if ( $data['selectoptions'] == 1 ) {
137 $langNew = null;
138 } else {
139 $langNew = $data['language'];
142 // No change in language
143 if ( $langNew === $langOld ) {
144 return false;
147 // Hardcoded [def] if the language is set to null
148 $logOld = $langOld ? $langOld : $defLang . '[def]';
149 $logNew = $langNew ? $langNew : $defLang . '[def]';
151 // Writing new page language to database
152 $dbw = wfGetDB( DB_MASTER );
153 $dbw->update(
154 'page',
155 array( 'page_lang' => $langNew ),
156 array(
157 'page_id' => $pageId,
158 'page_lang' => $langOld
160 __METHOD__
163 if ( !$dbw->affectedRows() ) {
164 return false;
167 // Logging change of language
168 $logParams = array(
169 '4::oldlanguage' => $logOld,
170 '5::newlanguage' => $logNew
172 $entry = new ManualLogEntry( 'pagelang', 'pagelang' );
173 $entry->setPerformer( $this->getUser() );
174 $entry->setTarget( $title );
175 $entry->setParameters( $logParams );
177 $logid = $entry->insert();
178 $entry->publish( $logid );
180 return true;
183 public function onSuccess() {
184 // Success causes a redirect
185 $this->getOutput()->redirect( $this->goToUrl );
188 function showLogFragment( $title ) {
189 $moveLogPage = new LogPage( 'pagelang' );
190 $out1 = Xml::element( 'h2', null, $moveLogPage->getName()->text() );
191 $out2 = '';
192 LogEventsList::showLogExtract( $out2, 'pagelang', $title );
193 return $out1 . $out2;