3 * Displays information about a page.
5 * Copyright © 2011 Alexandre Emsenhuber
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
25 use MediaWiki\MediaWikiServices;
26 use Wikimedia\Rdbms\Database;
29 * Displays information about a page.
33 class InfoAction extends FormlessAction {
37 * Returns the name of the action this object responds to.
39 * @return string Lowercase name
41 public function getName() {
46 * Whether this action can still be executed by a blocked user.
50 public function requiresUnblock() {
55 * Whether this action requires the wiki not to be locked.
59 public function requiresWrite() {
64 * Clear the info cache for a given Title.
67 * @param Title $title Title to clear cache for
68 * @param int|null $revid Revision id to clear
70 public static function invalidateCache( Title $title, $revid = null ) {
72 $revision = Revision::newFromTitle( $title, 0, Revision::READ_LATEST );
73 $revid = $revision ? $revision->getId() : null;
75 if ( $revid !== null ) {
76 $cache = MediaWikiServices::getInstance()->getMainWANObjectCache();
77 $key = self::getCacheKey( $cache, $title, $revid );
78 $cache->delete( $key );
83 * Shows page information on GET request.
85 * @return string Page information that will be added to the output
87 public function onView() {
91 $oldid = $this->page->getOldID();
93 $revision = $this->page->getRevisionFetched();
95 // Revision is missing
96 if ( $revision === null ) {
97 return $this->msg( 'missing-revision', $oldid )->parse();
100 // Revision is not current
101 if ( !$revision->isCurrent() ) {
102 return $this->msg( 'pageinfo-not-current' )->plain();
107 if ( !$this->msg( 'pageinfo-header' )->isDisabled() ) {
108 $content .= $this->msg( 'pageinfo-header' )->parse();
111 // Hide "This page is a member of # hidden categories" explanation
112 $content .= Html::element( 'style', [],
113 '.mw-hiddenCategoriesExplanation { display: none; }' ) . "\n";
115 // Hide "Templates used on this page" explanation
116 $content .= Html::element( 'style', [],
117 '.mw-templatesUsedExplanation { display: none; }' ) . "\n";
119 // Get page information
120 $pageInfo = $this->pageInfo();
122 // Allow extensions to add additional information
123 Hooks::run( 'InfoAction', [ $this->getContext(), &$pageInfo ] );
125 // Render page information
126 foreach ( $pageInfo as $header => $infoTable ) {
128 // pageinfo-header-basic, pageinfo-header-edits, pageinfo-header-restrictions,
129 // pageinfo-header-properties, pageinfo-category-info
130 $content .= $this->makeHeader(
131 $this->msg( "pageinfo-${header}" )->escaped(),
132 "mw-pageinfo-${header}"
135 foreach ( $infoTable as $infoRow ) {
136 $name = ( $infoRow[0] instanceof Message ) ? $infoRow[0]->escaped() : $infoRow[0];
137 $value = ( $infoRow[1] instanceof Message ) ? $infoRow[1]->escaped() : $infoRow[1];
138 $id = ( $infoRow[0] instanceof Message ) ? $infoRow[0]->getKey() : null;
139 $table = $this->addRow( $table, $name, $value, $id ) . "\n";
141 $content = $this->addTable( $content, $table ) . "\n";
145 if ( !$this->msg( 'pageinfo-footer' )->isDisabled() ) {
146 $content .= $this->msg( 'pageinfo-footer' )->parse();
153 * Creates a header that can be added to the output.
155 * @param string $header The header text.
156 * @param string $canonicalId
157 * @return string The HTML.
159 protected function makeHeader( $header, $canonicalId ) {
160 $spanAttribs = [ 'class' => 'mw-headline', 'id' => Sanitizer::escapeIdForAttribute( $header ) ];
161 $h2Attribs = [ 'id' => Sanitizer::escapeIdForAttribute( $canonicalId ) ];
163 return Html::rawElement( 'h2', $h2Attribs, Html::element( 'span', $spanAttribs, $header ) );
167 * Adds a row to a table that will be added to the content.
169 * @param string $table The table that will be added to the content
170 * @param string $name The name of the row
171 * @param string $value The value of the row
172 * @param string $id The ID to use for the 'tr' element
173 * @return string The table with the row added
175 protected function addRow( $table, $name, $value, $id ) {
179 $id === null ? [] : [ 'id' => 'mw-' . $id ],
180 Html::rawElement( 'td', [ 'style' => 'vertical-align: top;' ], $name ) .
181 Html::rawElement( 'td', [], $value )
186 * Adds a table to the content that will be added to the output.
188 * @param string $content The content that will be added to the output
189 * @param string $table The table
190 * @return string The content with the table added
192 protected function addTable( $content, $table ) {
193 return $content . Html::rawElement( 'table', [ 'class' => 'wikitable mw-page-info' ],
198 * Returns page information in an easily-manipulated format. Array keys are used so extensions
199 * may add additional information in arbitrary positions. Array values are arrays with one
200 * element to be rendered as a header, arrays with two elements to be rendered as a table row.
204 protected function pageInfo() {
207 $user = $this->getUser();
208 $lang = $this->getLanguage();
209 $title = $this->getTitle();
210 $id = $title->getArticleID();
211 $config = $this->context->getConfig();
212 $linkRenderer = MediaWikiServices::getInstance()->getLinkRenderer();
214 $pageCounts = $this->pageCounts( $this->page );
216 $pageProperties = [];
217 $props = PageProps::getInstance()->getAllProperties( $title );
218 if ( isset( $props[$id] ) ) {
219 $pageProperties = $props[$id];
224 $pageInfo['header-basic'] = [];
227 $displayTitle = $title->getPrefixedText();
228 if ( isset( $pageProperties['displaytitle'] ) ) {
229 $displayTitle = $pageProperties['displaytitle'];
232 $pageInfo['header-basic'][] = [
233 $this->msg( 'pageinfo-display-title' ), $displayTitle
236 // Is it a redirect? If so, where to?
237 if ( $title->isRedirect() ) {
238 $pageInfo['header-basic'][] = [
239 $this->msg( 'pageinfo-redirectsto' ),
240 $linkRenderer->makeLink( $this->page->getRedirectTarget() ) .
241 $this->msg( 'word-separator' )->escaped() .
242 $this->msg( 'parentheses' )->rawParams( $linkRenderer->makeLink(
243 $this->page->getRedirectTarget(),
244 $this->msg( 'pageinfo-redirectsto-info' )->text(),
246 [ 'action' => 'info' ]
252 $sortKey = $title->getCategorySortkey();
253 if ( isset( $pageProperties['defaultsort'] ) ) {
254 $sortKey = $pageProperties['defaultsort'];
257 $sortKey = htmlspecialchars( $sortKey );
258 $pageInfo['header-basic'][] = [ $this->msg( 'pageinfo-default-sort' ), $sortKey ];
260 // Page length (in bytes)
261 $pageInfo['header-basic'][] = [
262 $this->msg( 'pageinfo-length' ), $lang->formatNum( $title->getLength() )
265 // Page ID (number not localised, as it's a database ID)
266 $pageInfo['header-basic'][] = [ $this->msg( 'pageinfo-article-id' ), $id ];
268 // Language in which the page content is (supposed to be) written
269 $pageLang = $title->getPageLanguage()->getCode();
271 $pageLangHtml = $pageLang . ' - ' .
272 Language::fetchLanguageName( $pageLang, $lang->getCode() );
273 // Link to Special:PageLanguage with pre-filled page title if user has permissions
274 if ( $config->get( 'PageLanguageUseDB' )
275 && $title->userCan( 'pagelang', $user )
277 $pageLangHtml .= ' ' . $this->msg( 'parentheses' )->rawParams( $linkRenderer->makeLink(
278 SpecialPage::getTitleValueFor( 'PageLanguage', $title->getPrefixedText() ),
279 $this->msg( 'pageinfo-language-change' )->text()
283 $pageInfo['header-basic'][] = [
284 $this->msg( 'pageinfo-language' )->escaped(),
288 // Content model of the page
289 $modelHtml = htmlspecialchars( ContentHandler::getLocalizedName( $title->getContentModel() ) );
290 // If the user can change it, add a link to Special:ChangeContentModel
291 if ( $config->get( 'ContentHandlerUseDB' )
292 && $title->userCan( 'editcontentmodel', $user )
294 $modelHtml .= ' ' . $this->msg( 'parentheses' )->rawParams( $linkRenderer->makeLink(
295 SpecialPage::getTitleValueFor( 'ChangeContentModel', $title->getPrefixedText() ),
296 $this->msg( 'pageinfo-content-model-change' )->text()
300 $pageInfo['header-basic'][] = [
301 $this->msg( 'pageinfo-content-model' ),
305 if ( $title->inNamespace( NS_USER ) ) {
306 $pageUser = User::newFromName( $title->getRootText() );
307 if ( $pageUser && $pageUser->getId() && !$pageUser->isHidden() ) {
308 $pageInfo['header-basic'][] = [
309 $this->msg( 'pageinfo-user-id' ),
315 // Search engine status
316 $pOutput = new ParserOutput();
317 if ( isset( $pageProperties['noindex'] ) ) {
318 $pOutput->setIndexPolicy( 'noindex' );
320 if ( isset( $pageProperties['index'] ) ) {
321 $pOutput->setIndexPolicy( 'index' );
324 // Use robot policy logic
325 $policy = $this->page->getRobotPolicy( 'view', $pOutput );
326 $pageInfo['header-basic'][] = [
327 // Messages: pageinfo-robot-index, pageinfo-robot-noindex
328 $this->msg( 'pageinfo-robot-policy' ),
329 $this->msg( "pageinfo-robot-${policy['index']}" )
332 $unwatchedPageThreshold = $config->get( 'UnwatchedPageThreshold' );
334 $user->isAllowed( 'unwatchedpages' ) ||
335 ( $unwatchedPageThreshold !== false &&
336 $pageCounts['watchers'] >= $unwatchedPageThreshold )
338 // Number of page watchers
339 $pageInfo['header-basic'][] = [
340 $this->msg( 'pageinfo-watchers' ),
341 $lang->formatNum( $pageCounts['watchers'] )
344 $config->get( 'ShowUpdatedMarker' ) &&
345 isset( $pageCounts['visitingWatchers'] )
347 $minToDisclose = $config->get( 'UnwatchedPageSecret' );
348 if ( $pageCounts['visitingWatchers'] > $minToDisclose ||
349 $user->isAllowed( 'unwatchedpages' ) ) {
350 $pageInfo['header-basic'][] = [
351 $this->msg( 'pageinfo-visiting-watchers' ),
352 $lang->formatNum( $pageCounts['visitingWatchers'] )
355 $pageInfo['header-basic'][] = [
356 $this->msg( 'pageinfo-visiting-watchers' ),
357 $this->msg( 'pageinfo-few-visiting-watchers' )
361 } elseif ( $unwatchedPageThreshold !== false ) {
362 $pageInfo['header-basic'][] = [
363 $this->msg( 'pageinfo-watchers' ),
364 $this->msg( 'pageinfo-few-watchers' )->numParams( $unwatchedPageThreshold )
368 // Redirects to this page
369 $whatLinksHere = SpecialPage::getTitleFor( 'Whatlinkshere', $title->getPrefixedText() );
370 $pageInfo['header-basic'][] = [
371 $linkRenderer->makeLink(
373 $this->msg( 'pageinfo-redirects-name' )->text(),
378 'hideimages' => $title->getNamespace() == NS_FILE
381 $this->msg( 'pageinfo-redirects-value' )
382 ->numParams( count( $title->getRedirectsHere() ) )
385 // Is it counted as a content page?
386 if ( $this->page->isCountable() ) {
387 $pageInfo['header-basic'][] = [
388 $this->msg( 'pageinfo-contentpage' ),
389 $this->msg( 'pageinfo-contentpage-yes' )
393 // Subpages of this page, if subpages are enabled for the current NS
394 if ( MWNamespace::hasSubpages( $title->getNamespace() ) ) {
395 $prefixIndex = SpecialPage::getTitleFor(
396 'Prefixindex', $title->getPrefixedText() . '/' );
397 $pageInfo['header-basic'][] = [
398 $linkRenderer->makeLink(
400 $this->msg( 'pageinfo-subpages-name' )->text()
402 $this->msg( 'pageinfo-subpages-value' )
404 $pageCounts['subpages']['total'],
405 $pageCounts['subpages']['redirects'],
406 $pageCounts['subpages']['nonredirects'] )
410 if ( $title->inNamespace( NS_CATEGORY ) ) {
411 $category = Category::newFromTitle( $title );
413 // $allCount is the total number of cat members,
414 // not the count of how many members are normal pages.
415 $allCount = (int)$category->getPageCount();
416 $subcatCount = (int)$category->getSubcatCount();
417 $fileCount = (int)$category->getFileCount();
418 $pagesCount = $allCount - $subcatCount - $fileCount;
420 $pageInfo['category-info'] = [
422 $this->msg( 'pageinfo-category-total' ),
423 $lang->formatNum( $allCount )
426 $this->msg( 'pageinfo-category-pages' ),
427 $lang->formatNum( $pagesCount )
430 $this->msg( 'pageinfo-category-subcats' ),
431 $lang->formatNum( $subcatCount )
434 $this->msg( 'pageinfo-category-files' ),
435 $lang->formatNum( $fileCount )
441 $pageInfo['header-restrictions'] = [];
443 // Is this page affected by the cascading protection of something which includes it?
444 if ( $title->isCascadeProtected() ) {
446 $sources = $title->getCascadeProtectionSources()[0];
448 foreach ( $sources as $sourceTitle ) {
449 $cascadingFrom .= Html::rawElement(
450 'li', [], $linkRenderer->makeKnownLink( $sourceTitle ) );
453 $cascadingFrom = Html::rawElement( 'ul', [], $cascadingFrom );
454 $pageInfo['header-restrictions'][] = [
455 $this->msg( 'pageinfo-protect-cascading-from' ),
460 // Is out protection set to cascade to other pages?
461 if ( $title->areRestrictionsCascading() ) {
462 $pageInfo['header-restrictions'][] = [
463 $this->msg( 'pageinfo-protect-cascading' ),
464 $this->msg( 'pageinfo-protect-cascading-yes' )
469 foreach ( $title->getRestrictionTypes() as $restrictionType ) {
470 $protectionLevel = implode( ', ', $title->getRestrictions( $restrictionType ) );
472 if ( $protectionLevel == '' ) {
474 $message = $this->msg( 'protect-default' )->escaped();
476 // Administrators only
477 // Messages: protect-level-autoconfirmed, protect-level-sysop
478 $message = $this->msg( "protect-level-$protectionLevel" );
479 if ( $message->isDisabled() ) {
480 // Require "$1" permission
481 $message = $this->msg( "protect-fallback", $protectionLevel )->parse();
483 $message = $message->escaped();
486 $expiry = $title->getRestrictionExpiry( $restrictionType );
487 $formattedexpiry = $this->msg( 'parentheses',
488 $lang->formatExpiry( $expiry ) )->escaped();
489 $message .= $this->msg( 'word-separator' )->escaped() . $formattedexpiry;
491 // Messages: restriction-edit, restriction-move, restriction-create,
492 // restriction-upload
493 $pageInfo['header-restrictions'][] = [
494 $this->msg( "restriction-$restrictionType" ), $message
498 if ( !$this->page->exists() ) {
503 $pageInfo['header-edits'] = [];
505 $firstRev = $this->page->getOldestRevision();
506 $lastRev = $this->page->getRevision();
507 $batch = new LinkBatch;
510 $firstRevUser = $firstRev->getUserText( Revision::FOR_THIS_USER );
511 if ( $firstRevUser !== '' ) {
512 $firstRevUserTitle = Title::makeTitle( NS_USER, $firstRevUser );
513 $batch->addObj( $firstRevUserTitle );
514 $batch->addObj( $firstRevUserTitle->getTalkPage() );
519 $lastRevUser = $lastRev->getUserText( Revision::FOR_THIS_USER );
520 if ( $lastRevUser !== '' ) {
521 $lastRevUserTitle = Title::makeTitle( NS_USER, $lastRevUser );
522 $batch->addObj( $lastRevUserTitle );
523 $batch->addObj( $lastRevUserTitle->getTalkPage() );
531 $pageInfo['header-edits'][] = [
532 $this->msg( 'pageinfo-firstuser' ),
533 Linker::revUserTools( $firstRev )
536 // Date of page creation
537 $pageInfo['header-edits'][] = [
538 $this->msg( 'pageinfo-firsttime' ),
539 $linkRenderer->makeKnownLink(
541 $lang->userTimeAndDate( $firstRev->getTimestamp(), $user ),
543 [ 'oldid' => $firstRev->getId() ]
550 $pageInfo['header-edits'][] = [
551 $this->msg( 'pageinfo-lastuser' ),
552 Linker::revUserTools( $lastRev )
555 // Date of latest edit
556 $pageInfo['header-edits'][] = [
557 $this->msg( 'pageinfo-lasttime' ),
558 $linkRenderer->makeKnownLink(
560 $lang->userTimeAndDate( $this->page->getTimestamp(), $user ),
562 [ 'oldid' => $this->page->getLatest() ]
567 // Total number of edits
568 $pageInfo['header-edits'][] = [
569 $this->msg( 'pageinfo-edits' ), $lang->formatNum( $pageCounts['edits'] )
572 // Total number of distinct authors
573 if ( $pageCounts['authors'] > 0 ) {
574 $pageInfo['header-edits'][] = [
575 $this->msg( 'pageinfo-authors' ), $lang->formatNum( $pageCounts['authors'] )
579 // Recent number of edits (within past 30 days)
580 $pageInfo['header-edits'][] = [
581 $this->msg( 'pageinfo-recent-edits',
582 $lang->formatDuration( $config->get( 'RCMaxAge' ) ) ),
583 $lang->formatNum( $pageCounts['recent_edits'] )
586 // Recent number of distinct authors
587 $pageInfo['header-edits'][] = [
588 $this->msg( 'pageinfo-recent-authors' ),
589 $lang->formatNum( $pageCounts['recent_authors'] )
592 // Array of MagicWord objects
593 $magicWords = MagicWord::getDoubleUnderscoreArray();
595 // Array of magic word IDs
596 $wordIDs = $magicWords->names;
598 // Array of IDs => localized magic words
599 $localizedWords = $wgContLang->getMagicWords();
602 foreach ( $pageProperties as $property => $value ) {
603 if ( in_array( $property, $wordIDs ) ) {
604 $listItems[] = Html::element( 'li', [], $localizedWords[$property][1] );
608 $localizedList = Html::rawElement( 'ul', [], implode( '', $listItems ) );
609 $hiddenCategories = $this->page->getHiddenCategories();
612 count( $listItems ) > 0 ||
613 count( $hiddenCategories ) > 0 ||
614 $pageCounts['transclusion']['from'] > 0 ||
615 $pageCounts['transclusion']['to'] > 0
617 $options = [ 'LIMIT' => $config->get( 'PageInfoTransclusionLimit' ) ];
618 $transcludedTemplates = $title->getTemplateLinksFrom( $options );
619 if ( $config->get( 'MiserMode' ) ) {
620 $transcludedTargets = [];
622 $transcludedTargets = $title->getTemplateLinksTo( $options );
626 $pageInfo['header-properties'] = [];
629 if ( count( $listItems ) > 0 ) {
630 $pageInfo['header-properties'][] = [
631 $this->msg( 'pageinfo-magic-words' )->numParams( count( $listItems ) ),
637 if ( count( $hiddenCategories ) > 0 ) {
638 $pageInfo['header-properties'][] = [
639 $this->msg( 'pageinfo-hidden-categories' )
640 ->numParams( count( $hiddenCategories ) ),
641 Linker::formatHiddenCategories( $hiddenCategories )
645 // Transcluded templates
646 if ( $pageCounts['transclusion']['from'] > 0 ) {
647 if ( $pageCounts['transclusion']['from'] > count( $transcludedTemplates ) ) {
648 $more = $this->msg( 'morenotlisted' )->escaped();
653 $templateListFormatter = new TemplatesOnThisPageFormatter(
658 $pageInfo['header-properties'][] = [
659 $this->msg( 'pageinfo-templates' )
660 ->numParams( $pageCounts['transclusion']['from'] ),
661 $templateListFormatter->format( $transcludedTemplates, false, $more )
665 if ( !$config->get( 'MiserMode' ) && $pageCounts['transclusion']['to'] > 0 ) {
666 if ( $pageCounts['transclusion']['to'] > count( $transcludedTargets ) ) {
667 $more = $linkRenderer->makeLink(
669 $this->msg( 'moredotdotdot' )->text(),
671 [ 'hidelinks' => 1, 'hideredirs' => 1 ]
677 $templateListFormatter = new TemplatesOnThisPageFormatter(
682 $pageInfo['header-properties'][] = [
683 $this->msg( 'pageinfo-transclusions' )
684 ->numParams( $pageCounts['transclusion']['to'] ),
685 $templateListFormatter->format( $transcludedTargets, false, $more )
694 * Returns page counts that would be too "expensive" to retrieve by normal means.
696 * @param WikiPage|Article|Page $page
699 protected function pageCounts( Page $page ) {
701 $config = $this->context->getConfig();
702 $cache = MediaWikiServices::getInstance()->getMainWANObjectCache();
704 return $cache->getWithSetCallback(
705 self::getCacheKey( $cache, $page->getTitle(), $page->getLatest() ),
706 WANObjectCache::TTL_WEEK,
707 function ( $oldValue, &$ttl, &$setOpts ) use ( $page, $config, $fname ) {
708 $title = $page->getTitle();
709 $id = $title->getArticleID();
711 $dbr = wfGetDB( DB_REPLICA );
712 $dbrWatchlist = wfGetDB( DB_REPLICA, 'watchlist' );
713 $setOpts += Database::getCacheSetOptions( $dbr, $dbrWatchlist );
715 $watchedItemStore = MediaWikiServices::getInstance()->getWatchedItemStore();
718 $result['watchers'] = $watchedItemStore->countWatchers( $title );
720 if ( $config->get( 'ShowUpdatedMarker' ) ) {
721 $updated = wfTimestamp( TS_UNIX, $page->getTimestamp() );
722 $result['visitingWatchers'] = $watchedItemStore->countVisitingWatchers(
724 $updated - $config->get( 'WatchersMaxAge' )
728 // Total number of edits
729 $edits = (int)$dbr->selectField(
732 [ 'rev_page' => $id ],
735 $result['edits'] = $edits;
737 // Total number of distinct authors
738 if ( $config->get( 'MiserMode' ) ) {
739 $result['authors'] = 0;
741 $result['authors'] = (int)$dbr->selectField(
743 'COUNT(DISTINCT rev_user_text)',
744 [ 'rev_page' => $id ],
749 // "Recent" threshold defined by RCMaxAge setting
750 $threshold = $dbr->timestamp( time() - $config->get( 'RCMaxAge' ) );
752 // Recent number of edits
753 $edits = (int)$dbr->selectField(
758 "rev_timestamp >= " . $dbr->addQuotes( $threshold )
762 $result['recent_edits'] = $edits;
764 // Recent number of distinct authors
765 $result['recent_authors'] = (int)$dbr->selectField(
767 'COUNT(DISTINCT rev_user_text)',
770 "rev_timestamp >= " . $dbr->addQuotes( $threshold )
775 // Subpages (if enabled)
776 if ( MWNamespace::hasSubpages( $title->getNamespace() ) ) {
777 $conds = [ 'page_namespace' => $title->getNamespace() ];
778 $conds[] = 'page_title ' .
779 $dbr->buildLike( $title->getDBkey() . '/', $dbr->anyString() );
781 // Subpages of this page (redirects)
782 $conds['page_is_redirect'] = 1;
783 $result['subpages']['redirects'] = (int)$dbr->selectField(
790 // Subpages of this page (non-redirects)
791 $conds['page_is_redirect'] = 0;
792 $result['subpages']['nonredirects'] = (int)$dbr->selectField(
799 // Subpages of this page (total)
800 $result['subpages']['total'] = $result['subpages']['redirects']
801 + $result['subpages']['nonredirects'];
804 // Counts for the number of transclusion links (to/from)
805 if ( $config->get( 'MiserMode' ) ) {
806 $result['transclusion']['to'] = 0;
808 $result['transclusion']['to'] = (int)$dbr->selectField(
812 'tl_namespace' => $title->getNamespace(),
813 'tl_title' => $title->getDBkey()
819 $result['transclusion']['from'] = (int)$dbr->selectField(
822 [ 'tl_from' => $title->getArticleID() ],
832 * Returns the name that goes in the "<h1>" page title.
836 protected function getPageTitle() {
837 return $this->msg( 'pageinfo-title', $this->getTitle()->getPrefixedText() )->text();
841 * Get a list of contributors of $article
842 * @return string Html
844 protected function getContributors() {
845 $contributors = $this->page->getContributors();
849 $linkRenderer = MediaWikiServices::getInstance()->getLinkRenderer();
851 # Sift for real versus user names
852 /** @var User $user */
853 foreach ( $contributors as $user ) {
854 $page = $user->isAnon()
855 ? SpecialPage::getTitleFor( 'Contributions', $user->getName() )
856 : $user->getUserPage();
858 $hiddenPrefs = $this->context->getConfig()->get( 'HiddenPrefs' );
859 if ( $user->getId() == 0 ) {
860 $anon_ips[] = $linkRenderer->makeLink( $page, $user->getName() );
861 } elseif ( !in_array( 'realname', $hiddenPrefs ) && $user->getRealName() ) {
862 $real_names[] = $linkRenderer->makeLink( $page, $user->getRealName() );
864 $user_names[] = $linkRenderer->makeLink( $page, $user->getName() );
868 $lang = $this->getLanguage();
870 $real = $lang->listToText( $real_names );
872 # "ThisSite user(s) A, B and C"
873 if ( count( $user_names ) ) {
874 $user = $this->msg( 'siteusers' )
875 ->rawParams( $lang->listToText( $user_names ) )
876 ->params( count( $user_names ) )->escaped();
881 if ( count( $anon_ips ) ) {
882 $anon = $this->msg( 'anonusers' )
883 ->rawParams( $lang->listToText( $anon_ips ) )
884 ->params( count( $anon_ips ) )->escaped();
889 # This is the big list, all mooshed together. We sift for blank strings
891 foreach ( [ $real, $user, $anon ] as $s ) {
893 array_push( $fulllist, $s );
897 $count = count( $fulllist );
899 # "Based on work by ..."
901 ? $this->msg( 'othercontribs' )->rawParams(
902 $lang->listToText( $fulllist ) )->params( $count )->escaped()
907 * Returns the description that goes below the "<h1>" tag.
911 protected function getDescription() {
916 * @param WANObjectCache $cache
917 * @param Title $title
921 protected static function getCacheKey( WANObjectCache $cache, Title $title, $revId ) {
922 return $cache->makeKey( 'infoaction', md5( $title->getPrefixedText() ), $revId, self::VERSION );