--- /dev/null
+<?php
+/**
+ * List and paging of category members.
+ *
+ * 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
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ */
+use MediaWiki\MediaWikiServices;
+
+class CategoryViewer extends ContextSource {
+ /** @var int */
+ public $limit;
+
+ /** @var array */
+ public $from;
+
+ /** @var array */
+ public $until;
+
+ /** @var string[] */
+ public $articles;
+
+ /** @var array */
+ public $articles_start_char;
+
+ /** @var array */
+ public $children;
+
+ /** @var array */
+ public $children_start_char;
+
+ /** @var bool */
+ public $showGallery;
+
+ /** @var array */
+ public $imgsNoGallery_start_char;
+
+ /** @var array */
+ public $imgsNoGallery;
+
+ /** @var array */
+ public $nextPage;
+
+ /** @var array */
+ protected $prevPage;
+
+ /** @var array */
+ public $flip;
+
+ /** @var Title */
+ public $title;
+
+ /** @var Collation */
+ public $collation;
+
+ /** @var ImageGalleryBase */
+ public $gallery;
+
+ /** @var Category Category object for this page. */
+ private $cat;
+
+ /** @var array The original query array, to be used in generating paging links. */
+ private $query;
+
+ /**
+ * @since 1.19 $context is a second, required parameter
+ * @param Title $title
+ * @param IContextSource $context
+ * @param array $from An array with keys page, subcat,
+ * and file for offset of results of each section (since 1.17)
+ * @param array $until An array with 3 keys for until of each section (since 1.17)
+ * @param array $query
+ */
+ function __construct( $title, IContextSource $context, $from = [],
+ $until = [], $query = []
+ ) {
+ $this->title = $title;
+ $this->setContext( $context );
+ $this->getOutput()->addModuleStyles( [
+ 'mediawiki.action.view.categoryPage.styles'
+ ] );
+ $this->from = $from;
+ $this->until = $until;
+ $this->limit = $context->getConfig()->get( 'CategoryPagingLimit' );
+ $this->cat = Category::newFromTitle( $title );
+ $this->query = $query;
+ $this->collation = Collation::singleton();
+ unset( $this->query['title'] );
+ }
+
+ /**
+ * Format the category data list.
+ *
+ * @return string HTML output
+ */
+ public function getHTML() {
+ $this->showGallery = $this->getConfig()->get( 'CategoryMagicGallery' )
+ && !$this->getOutput()->mNoGallery;
+
+ $this->clearCategoryState();
+ $this->doCategoryQuery();
+ $this->finaliseCategoryState();
+
+ $r = $this->getSubcategorySection() .
+ $this->getPagesSection() .
+ $this->getImageSection();
+
+ if ( $r == '' ) {
+ // If there is no category content to display, only
+ // show the top part of the navigation links.
+ // @todo FIXME: Cannot be completely suppressed because it
+ // is unknown if 'until' or 'from' makes this
+ // give 0 results.
+ $r = $r . $this->getCategoryTop();
+ } else {
+ $r = $this->getCategoryTop() .
+ $r .
+ $this->getCategoryBottom();
+ }
+
+ // Give a proper message if category is empty
+ if ( $r == '' ) {
+ $r = $this->msg( 'category-empty' )->parseAsBlock();
+ }
+
+ $lang = $this->getLanguage();
+ $attribs = [
+ 'class' => 'mw-category-generated',
+ 'lang' => $lang->getHtmlCode(),
+ 'dir' => $lang->getDir()
+ ];
+ # put a div around the headings which are in the user language
+ $r = Html::openElement( 'div', $attribs ) . $r . '</div>';
+
+ return $r;
+ }
+
+ function clearCategoryState() {
+ $this->articles = [];
+ $this->articles_start_char = [];
+ $this->children = [];
+ $this->children_start_char = [];
+ if ( $this->showGallery ) {
+ // Note that null for mode is taken to mean use default.
+ $mode = $this->getRequest()->getVal( 'gallerymode', null );
+ try {
+ $this->gallery = ImageGalleryBase::factory( $mode, $this->getContext() );
+ } catch ( Exception $e ) {
+ // User specified something invalid, fallback to default.
+ $this->gallery = ImageGalleryBase::factory( false, $this->getContext() );
+ }
+
+ $this->gallery->setHideBadImages();
+ } else {
+ $this->imgsNoGallery = [];
+ $this->imgsNoGallery_start_char = [];
+ }
+ }
+
+ /**
+ * Add a subcategory to the internal lists, using a Category object
+ * @param Category $cat
+ * @param string $sortkey
+ * @param int $pageLength
+ */
+ function addSubcategoryObject( Category $cat, $sortkey, $pageLength ) {
+ // Subcategory; strip the 'Category' namespace from the link text.
+ $title = $cat->getTitle();
+
+ $this->children[] = $this->generateLink(
+ 'subcat',
+ $title,
+ $title->isRedirect(),
+ htmlspecialchars( $title->getText() )
+ );
+
+ $this->children_start_char[] =
+ $this->getSubcategorySortChar( $cat->getTitle(), $sortkey );
+ }
+
+ function generateLink( $type, Title $title, $isRedirect, $html = null ) {
+ $link = null;
+ Hooks::run( 'CategoryViewer::generateLink', [ $type, $title, $html, &$link ] );
+ if ( $link === null ) {
+ $linkRenderer = MediaWikiServices::getInstance()->getLinkRenderer();
+ if ( $html !== null ) {
+ $html = new HtmlArmor( $html );
+ }
+ $link = $linkRenderer->makeLink( $title, $html );
+ }
+ if ( $isRedirect ) {
+ $link = '<span class="redirect-in-category">' . $link . '</span>';
+ }
+
+ return $link;
+ }
+
+ /**
+ * Get the character to be used for sorting subcategories.
+ * If there's a link from Category:A to Category:B, the sortkey of the resulting
+ * entry in the categorylinks table is Category:A, not A, which it SHOULD be.
+ * Workaround: If sortkey == "Category:".$title, than use $title for sorting,
+ * else use sortkey...
+ *
+ * @param Title $title
+ * @param string $sortkey The human-readable sortkey (before transforming to icu or whatever).
+ * @return string
+ */
+ function getSubcategorySortChar( $title, $sortkey ) {
+ global $wgContLang;
+
+ if ( $title->getPrefixedText() == $sortkey ) {
+ $word = $title->getDBkey();
+ } else {
+ $word = $sortkey;
+ }
+
+ $firstChar = $this->collation->getFirstLetter( $word );
+
+ return $wgContLang->convert( $firstChar );
+ }
+
+ /**
+ * Add a page in the image namespace
+ * @param Title $title
+ * @param string $sortkey
+ * @param int $pageLength
+ * @param bool $isRedirect
+ */
+ function addImage( Title $title, $sortkey, $pageLength, $isRedirect = false ) {
+ global $wgContLang;
+ if ( $this->showGallery ) {
+ $flip = $this->flip['file'];
+ if ( $flip ) {
+ $this->gallery->insert( $title );
+ } else {
+ $this->gallery->add( $title );
+ }
+ } else {
+ $this->imgsNoGallery[] = $this->generateLink( 'image', $title, $isRedirect );
+
+ $this->imgsNoGallery_start_char[] = $wgContLang->convert(
+ $this->collation->getFirstLetter( $sortkey ) );
+ }
+ }
+
+ /**
+ * Add a miscellaneous page
+ * @param Title $title
+ * @param string $sortkey
+ * @param int $pageLength
+ * @param bool $isRedirect
+ */
+ function addPage( $title, $sortkey, $pageLength, $isRedirect = false ) {
+ global $wgContLang;
+
+ $this->articles[] = $this->generateLink( 'page', $title, $isRedirect );
+
+ $this->articles_start_char[] = $wgContLang->convert(
+ $this->collation->getFirstLetter( $sortkey ) );
+ }
+
+ function finaliseCategoryState() {
+ if ( $this->flip['subcat'] ) {
+ $this->children = array_reverse( $this->children );
+ $this->children_start_char = array_reverse( $this->children_start_char );
+ }
+ if ( $this->flip['page'] ) {
+ $this->articles = array_reverse( $this->articles );
+ $this->articles_start_char = array_reverse( $this->articles_start_char );
+ }
+ if ( !$this->showGallery && $this->flip['file'] ) {
+ $this->imgsNoGallery = array_reverse( $this->imgsNoGallery );
+ $this->imgsNoGallery_start_char = array_reverse( $this->imgsNoGallery_start_char );
+ }
+ }
+
+ function doCategoryQuery() {
+ $dbr = wfGetDB( DB_REPLICA, 'category' );
+
+ $this->nextPage = [
+ 'page' => null,
+ 'subcat' => null,
+ 'file' => null,
+ ];
+ $this->prevPage = [
+ 'page' => null,
+ 'subcat' => null,
+ 'file' => null,
+ ];
+
+ $this->flip = [ 'page' => false, 'subcat' => false, 'file' => false ];
+
+ foreach ( [ 'page', 'subcat', 'file' ] as $type ) {
+ # Get the sortkeys for start/end, if applicable. Note that if
+ # the collation in the database differs from the one
+ # set in $wgCategoryCollation, pagination might go totally haywire.
+ $extraConds = [ 'cl_type' => $type ];
+ if ( isset( $this->from[$type] ) && $this->from[$type] !== null ) {
+ $extraConds[] = 'cl_sortkey >= '
+ . $dbr->addQuotes( $this->collation->getSortKey( $this->from[$type] ) );
+ } elseif ( isset( $this->until[$type] ) && $this->until[$type] !== null ) {
+ $extraConds[] = 'cl_sortkey < '
+ . $dbr->addQuotes( $this->collation->getSortKey( $this->until[$type] ) );
+ $this->flip[$type] = true;
+ }
+
+ $res = $dbr->select(
+ [ 'page', 'categorylinks', 'category' ],
+ array_merge(
+ LinkCache::getSelectFields(),
+ [
+ 'page_namespace',
+ 'page_title',
+ 'cl_sortkey',
+ 'cat_id',
+ 'cat_title',
+ 'cat_subcats',
+ 'cat_pages',
+ 'cat_files',
+ 'cl_sortkey_prefix',
+ 'cl_collation'
+ ]
+ ),
+ array_merge( [ 'cl_to' => $this->title->getDBkey() ], $extraConds ),
+ __METHOD__,
+ [
+ 'USE INDEX' => [ 'categorylinks' => 'cl_sortkey' ],
+ 'LIMIT' => $this->limit + 1,
+ 'ORDER BY' => $this->flip[$type] ? 'cl_sortkey DESC' : 'cl_sortkey',
+ ],
+ [
+ 'categorylinks' => [ 'INNER JOIN', 'cl_from = page_id' ],
+ 'category' => [ 'LEFT JOIN', [
+ 'cat_title = page_title',
+ 'page_namespace' => NS_CATEGORY
+ ] ]
+ ]
+ );
+
+ Hooks::run( 'CategoryViewer::doCategoryQuery', [ $type, $res ] );
+ $linkCache = MediaWikiServices::getInstance()->getLinkCache();
+
+ $count = 0;
+ foreach ( $res as $row ) {
+ $title = Title::newFromRow( $row );
+ $linkCache->addGoodLinkObjFromRow( $title, $row );
+
+ if ( $row->cl_collation === '' ) {
+ // Hack to make sure that while updating from 1.16 schema
+ // and db is inconsistent, that the sky doesn't fall.
+ // See r83544. Could perhaps be removed in a couple decades...
+ $humanSortkey = $row->cl_sortkey;
+ } else {
+ $humanSortkey = $title->getCategorySortkey( $row->cl_sortkey_prefix );
+ }
+
+ if ( ++$count > $this->limit ) {
+ # We've reached the one extra which shows that there
+ # are additional pages to be had. Stop here...
+ $this->nextPage[$type] = $humanSortkey;
+ break;
+ }
+ if ( $count == $this->limit ) {
+ $this->prevPage[$type] = $humanSortkey;
+ }
+
+ if ( $title->getNamespace() == NS_CATEGORY ) {
+ $cat = Category::newFromRow( $row, $title );
+ $this->addSubcategoryObject( $cat, $humanSortkey, $row->page_len );
+ } elseif ( $title->getNamespace() == NS_FILE ) {
+ $this->addImage( $title, $humanSortkey, $row->page_len, $row->page_is_redirect );
+ } else {
+ $this->addPage( $title, $humanSortkey, $row->page_len, $row->page_is_redirect );
+ }
+ }
+ }
+ }
+
+ /**
+ * @return string
+ */
+ function getCategoryTop() {
+ $r = $this->getCategoryBottom();
+ return $r === ''
+ ? $r
+ : "<br style=\"clear:both;\"/>\n" . $r;
+ }
+
+ /**
+ * @return string
+ */
+ function getSubcategorySection() {
+ # Don't show subcategories section if there are none.
+ $r = '';
+ $rescnt = count( $this->children );
+ $dbcnt = $this->cat->getSubcatCount();
+ // This function should be called even if the result isn't used, it has side-effects
+ $countmsg = $this->getCountMessage( $rescnt, $dbcnt, 'subcat' );
+
+ if ( $rescnt > 0 ) {
+ # Showing subcategories
+ $r .= "<div id=\"mw-subcategories\">\n";
+ $r .= '<h2>' . $this->msg( 'subcategories' )->parse() . "</h2>\n";
+ $r .= $countmsg;
+ $r .= $this->getSectionPagingLinks( 'subcat' );
+ $r .= $this->formatList( $this->children, $this->children_start_char );
+ $r .= $this->getSectionPagingLinks( 'subcat' );
+ $r .= "\n</div>";
+ }
+ return $r;
+ }
+
+ /**
+ * @return string
+ */
+ function getPagesSection() {
+ $ti = wfEscapeWikiText( $this->title->getText() );
+ # Don't show articles section if there are none.
+ $r = '';
+
+ # @todo FIXME: Here and in the other two sections: we don't need to bother
+ # with this rigmarole if the entire category contents fit on one page
+ # and have already been retrieved. We can just use $rescnt in that
+ # case and save a query and some logic.
+ $dbcnt = $this->cat->getPageCount() - $this->cat->getSubcatCount()
+ - $this->cat->getFileCount();
+ $rescnt = count( $this->articles );
+ // This function should be called even if the result isn't used, it has side-effects
+ $countmsg = $this->getCountMessage( $rescnt, $dbcnt, 'article' );
+
+ if ( $rescnt > 0 ) {
+ $r = "<div id=\"mw-pages\">\n";
+ $r .= '<h2>' . $this->msg( 'category_header', $ti )->parse() . "</h2>\n";
+ $r .= $countmsg;
+ $r .= $this->getSectionPagingLinks( 'page' );
+ $r .= $this->formatList( $this->articles, $this->articles_start_char );
+ $r .= $this->getSectionPagingLinks( 'page' );
+ $r .= "\n</div>";
+ }
+ return $r;
+ }
+
+ /**
+ * @return string
+ */
+ function getImageSection() {
+ $r = '';
+ $rescnt = $this->showGallery ? $this->gallery->count() : count( $this->imgsNoGallery );
+ $dbcnt = $this->cat->getFileCount();
+ // This function should be called even if the result isn't used, it has side-effects
+ $countmsg = $this->getCountMessage( $rescnt, $dbcnt, 'file' );
+
+ if ( $rescnt > 0 ) {
+ $r .= "<div id=\"mw-category-media\">\n";
+ $r .= '<h2>' .
+ $this->msg(
+ 'category-media-header',
+ wfEscapeWikiText( $this->title->getText() )
+ )->text() .
+ "</h2>\n";
+ $r .= $countmsg;
+ $r .= $this->getSectionPagingLinks( 'file' );
+ if ( $this->showGallery ) {
+ $r .= $this->gallery->toHTML();
+ } else {
+ $r .= $this->formatList( $this->imgsNoGallery, $this->imgsNoGallery_start_char );
+ }
+ $r .= $this->getSectionPagingLinks( 'file' );
+ $r .= "\n</div>";
+ }
+ return $r;
+ }
+
+ /**
+ * Get the paging links for a section (subcats/pages/files), to go at the top and bottom
+ * of the output.
+ *
+ * @param string $type 'page', 'subcat', or 'file'
+ * @return string HTML output, possibly empty if there are no other pages
+ */
+ private function getSectionPagingLinks( $type ) {
+ if ( isset( $this->until[$type] ) && $this->until[$type] !== null ) {
+ // The new value for the until parameter should be pointing to the first
+ // result displayed on the page which is the second last result retrieved
+ // from the database.The next link should have a from parameter pointing
+ // to the until parameter of the current page.
+ if ( $this->nextPage[$type] !== null ) {
+ return $this->pagingLinks( $this->prevPage[$type], $this->until[$type], $type );
+ } else {
+ // If the nextPage variable is null, it means that we have reached the first page
+ // and therefore the previous link should be disabled.
+ return $this->pagingLinks( null, $this->until[$type], $type );
+ }
+ } elseif ( $this->nextPage[$type] !== null
+ || ( isset( $this->from[$type] ) && $this->from[$type] !== null )
+ ) {
+ return $this->pagingLinks( $this->from[$type], $this->nextPage[$type], $type );
+ } else {
+ return '';
+ }
+ }
+
+ /**
+ * @return string
+ */
+ function getCategoryBottom() {
+ return '';
+ }
+
+ /**
+ * Format a list of articles chunked by letter, either as a
+ * bullet list or a columnar format, depending on the length.
+ *
+ * @param array $articles
+ * @param array $articles_start_char
+ * @param int $cutoff
+ * @return string
+ * @private
+ */
+ function formatList( $articles, $articles_start_char, $cutoff = 6 ) {
+ $list = '';
+ if ( count( $articles ) > $cutoff ) {
+ $list = self::columnList( $articles, $articles_start_char );
+ } elseif ( count( $articles ) > 0 ) {
+ // for short lists of articles in categories.
+ $list = self::shortList( $articles, $articles_start_char );
+ }
+
+ $pageLang = $this->title->getPageLanguage();
+ $attribs = [ 'lang' => $pageLang->getHtmlCode(), 'dir' => $pageLang->getDir(),
+ 'class' => 'mw-content-' . $pageLang->getDir() ];
+ $list = Html::rawElement( 'div', $attribs, $list );
+
+ return $list;
+ }
+
+ /**
+ * Format a list of articles chunked by letter in a three-column list, ordered
+ * vertically. This is used for categories with a significant number of pages.
+ *
+ * TODO: Take the headers into account when creating columns, so they're
+ * more visually equal.
+ *
+ * TODO: shortList and columnList are similar, need merging
+ *
+ * @param string[] $articles HTML links to each article
+ * @param string[] $articles_start_char The header characters for each article
+ * @return string HTML to output
+ * @private
+ */
+ static function columnList( $articles, $articles_start_char ) {
+ $columns = array_combine( $articles, $articles_start_char );
+
+ $ret = Html::openElement( 'div', [ 'class' => 'mw-category' ] );
+
+ $colContents = [];
+
+ # Kind of like array_flip() here, but we keep duplicates in an
+ # array instead of dropping them.
+ foreach ( $columns as $article => $char ) {
+ if ( !isset( $colContents[$char] ) ) {
+ $colContents[$char] = [];
+ }
+ $colContents[$char][] = $article;
+ }
+
+ foreach ( $colContents as $char => $articles ) {
+ # Change space to non-breaking space to keep headers aligned
+ $h3char = $char === ' ' ? ' ' : htmlspecialchars( $char );
+
+ $ret .= '<div class="mw-category-group"><h3>' . $h3char;
+ $ret .= "</h3>\n";
+
+ $ret .= '<ul><li>';
+ $ret .= implode( "</li>\n<li>", $articles );
+ $ret .= '</li></ul></div>';
+
+ }
+
+ $ret .= Html::closeElement( 'div' );
+ return $ret;
+ }
+
+ /**
+ * Format a list of articles chunked by letter in a bullet list. This is used
+ * for categories with a small number of pages (when columns aren't needed).
+ * @param string[] $articles HTML links to each article
+ * @param string[] $articles_start_char The header characters for each article
+ * @return string HTML to output
+ * @private
+ */
+ static function shortList( $articles, $articles_start_char ) {
+ $r = '<h3>' . htmlspecialchars( $articles_start_char[0] ) . "</h3>\n";
+ $r .= '<ul><li>' . $articles[0] . '</li>';
+ $articleCount = count( $articles );
+ for ( $index = 1; $index < $articleCount; $index++ ) {
+ if ( $articles_start_char[$index] != $articles_start_char[$index - 1] ) {
+ $r .= "</ul><h3>" . htmlspecialchars( $articles_start_char[$index] ) . "</h3>\n<ul>";
+ }
+
+ $r .= "<li>{$articles[$index]}</li>";
+ }
+ $r .= '</ul>';
+ return $r;
+ }
+
+ /**
+ * Create paging links, as a helper method to getSectionPagingLinks().
+ *
+ * @param string $first The 'until' parameter for the generated URL
+ * @param string $last The 'from' parameter for the generated URL
+ * @param string $type A prefix for parameters, 'page' or 'subcat' or
+ * 'file'
+ * @return string HTML
+ */
+ private function pagingLinks( $first, $last, $type = '' ) {
+ $prevLink = $this->msg( 'prev-page' )->text();
+
+ $linkRenderer = MediaWikiServices::getInstance()->getLinkRenderer();
+ if ( $first != '' ) {
+ $prevQuery = $this->query;
+ $prevQuery["{$type}until"] = $first;
+ unset( $prevQuery["{$type}from"] );
+ $prevLink = $linkRenderer->makeKnownLink(
+ $this->addFragmentToTitle( $this->title, $type ),
+ $prevLink,
+ [],
+ $prevQuery
+ );
+ }
+
+ $nextLink = $this->msg( 'next-page' )->text();
+
+ if ( $last != '' ) {
+ $lastQuery = $this->query;
+ $lastQuery["{$type}from"] = $last;
+ unset( $lastQuery["{$type}until"] );
+ $nextLink = $linkRenderer->makeKnownLink(
+ $this->addFragmentToTitle( $this->title, $type ),
+ $nextLink,
+ [],
+ $lastQuery
+ );
+ }
+
+ return $this->msg( 'categoryviewer-pagedlinks' )->rawParams( $prevLink, $nextLink )->escaped();
+ }
+
+ /**
+ * Takes a title, and adds the fragment identifier that
+ * corresponds to the correct segment of the category.
+ *
+ * @param Title $title The title (usually $this->title)
+ * @param string $section Which section
+ * @throws MWException
+ * @return Title
+ */
+ private function addFragmentToTitle( $title, $section ) {
+ switch ( $section ) {
+ case 'page':
+ $fragment = 'mw-pages';
+ break;
+ case 'subcat':
+ $fragment = 'mw-subcategories';
+ break;
+ case 'file':
+ $fragment = 'mw-category-media';
+ break;
+ default:
+ throw new MWException( __METHOD__ .
+ " Invalid section $section." );
+ }
+
+ return Title::makeTitle( $title->getNamespace(),
+ $title->getDBkey(), $fragment );
+ }
+
+ /**
+ * What to do if the category table conflicts with the number of results
+ * returned? This function says what. Each type is considered independently
+ * of the other types.
+ *
+ * @param int $rescnt The number of items returned by our database query.
+ * @param int $dbcnt The number of items according to the category table.
+ * @param string $type 'subcat', 'article', or 'file'
+ * @return string A message giving the number of items, to output to HTML.
+ */
+ private function getCountMessage( $rescnt, $dbcnt, $type ) {
+ // There are three cases:
+ // 1) The category table figure seems sane. It might be wrong, but
+ // we can't do anything about it if we don't recalculate it on ev-
+ // ery category view.
+ // 2) The category table figure isn't sane, like it's smaller than the
+ // number of actual results, *but* the number of results is less
+ // than $this->limit and there's no offset. In this case we still
+ // know the right figure.
+ // 3) We have no idea.
+
+ // Check if there's a "from" or "until" for anything
+
+ // This is a little ugly, but we seem to use different names
+ // for the paging types then for the messages.
+ if ( $type === 'article' ) {
+ $pagingType = 'page';
+ } else {
+ $pagingType = $type;
+ }
+
+ $fromOrUntil = false;
+ if ( ( isset( $this->from[$pagingType] ) && $this->from[$pagingType] !== null ) ||
+ ( isset( $this->until[$pagingType] ) && $this->until[$pagingType] !== null )
+ ) {
+ $fromOrUntil = true;
+ }
+
+ if ( $dbcnt == $rescnt ||
+ ( ( $rescnt == $this->limit || $fromOrUntil ) && $dbcnt > $rescnt )
+ ) {
+ // Case 1: seems sane.
+ $totalcnt = $dbcnt;
+ } elseif ( $rescnt < $this->limit && !$fromOrUntil ) {
+ // Case 2: not sane, but salvageable. Use the number of results.
+ // Since there are fewer than 200, we can also take this opportunity
+ // to refresh the incorrect category table entry -- which should be
+ // quick due to the small number of entries.
+ $totalcnt = $rescnt;
+ DeferredUpdates::addCallableUpdate( [ $this->cat, 'refreshCounts' ] );
+ } else {
+ // Case 3: hopeless. Don't give a total count at all.
+ // Messages: category-subcat-count-limited, category-article-count-limited,
+ // category-file-count-limited
+ return $this->msg( "category-$type-count-limited" )->numParams( $rescnt )->parseAsBlock();
+ }
+ // Messages: category-subcat-count, category-article-count, category-file-count
+ return $this->msg( "category-$type-count" )->numParams( $rescnt, $totalcnt )->parseAsBlock();
+ }
+}
scripts.mit.edu / autoinstallsdev / mediawiki.git / blobdiff