* Special handling for category description pages
* Modelled after ImagePage.php
*
- * @package MediaWiki
*/
if( !defined( 'MEDIAWIKI' ) )
die( 1 );
/**
- * @package MediaWiki
*/
class CategoryPage extends Article {
function view() {
- if(!wfRunHooks('CategoryPageView', array(&$this))) return;
+ global $wgRequest, $wgUser;
+
+ $diff = $wgRequest->getVal( 'diff' );
+ $diffOnly = $wgRequest->getBool( 'diffonly', $wgUser->getOption( 'diffonly' ) );
+
+ if ( isset( $diff ) && $diffOnly )
+ return Article::view();
+
+ if( !wfRunHooks( 'CategoryPageView', array( &$this ) ) )
+ return;
if ( NS_CATEGORY == $this->mTitle->getNamespace() ) {
$this->openShowCategory();
Article::view();
- # If the article we've just shown is in the "Image" namespace,
- # follow it with the history list and link list for the image
- # it describes.
-
if ( NS_CATEGORY == $this->mTitle->getNamespace() ) {
$this->closeShowCategory();
}
}
+
+ /**
+ * Don't return a 404 for categories in use.
+ */
+ function hasViewableContent() {
+ if( parent::hasViewableContent() ) {
+ return true;
+ } else {
+ $cat = Category::newFromTitle( $this->mTitle );
+ return $cat->getId() != 0;
+ }
+
+ }
function openShowCategory() {
# For overloading
class CategoryViewer {
var $title, $limit, $from, $until,
- $articles, $articles_start_char,
+ $articles, $articles_start_char,
$children, $children_start_char,
$showGallery, $gallery,
$skin;
+ /** Category object for this page */
+ private $cat;
function __construct( $title, $from = '', $until = '' ) {
global $wgCategoryPagingLimit;
$this->from = $from;
$this->until = $until;
$this->limit = $wgCategoryPagingLimit;
+ $this->cat = Category::newFromTitle( $title );
}
-
+
/**
* Format the category data list.
*
- * @param string $from -- return only sort keys from this item on
- * @param string $until -- don't return keys after this point.
* @return string HTML output
* @private
*/
function getHTML() {
- global $wgOut, $wgCategoryMagicGallery, $wgCategoryPagingLimit;
+ global $wgOut, $wgCategoryMagicGallery, $wgCategoryPagingLimit, $wgContLang;
wfProfileIn( __METHOD__ );
$this->showGallery = $wgCategoryMagicGallery && !$wgOut->mNoGallery;
$this->doCategoryQuery();
$this->finaliseCategoryState();
- $r = $this->getCategoryTop() .
- $this->getSubcategorySection() .
+ $r = $this->getSubcategorySection() .
$this->getPagesSection() .
- $this->getImageSection() .
- $this->getCategoryBottom();
+ $this->getImageSection();
+
+ if( $r == '' ) {
+ // If there is no category content to display, only
+ // show the top part of the navigation links.
+ // 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 = wfMsgExt( 'category-empty', array( 'parse' ) );
+ }
wfProfileOut( __METHOD__ );
- return $r;
+ return $wgContLang->convert($r);
}
function clearCategoryState() {
$this->children_start_char = array();
if( $this->showGallery ) {
$this->gallery = new ImageGallery();
- $this->gallery->setParsing();
+ $this->gallery->setHideBadImages();
}
}
}
/**
- * Add a subcategory to the internal lists
+ * Add a subcategory to the internal lists, using a Category object
+ */
+ function addSubcategoryObject( $cat, $sortkey, $pageLength ) {
+ $title = $cat->getTitle();
+ $this->addSubcategory( $title, $sortkey, $pageLength );
+ }
+
+ /**
+ * Add a subcategory to the internal lists, using a title object
+ * @deprecated kept for compatibility, please use addSubcategoryObject instead
*/
function addSubcategory( $title, $sortkey, $pageLength ) {
- global $wgContLang;
// Subcategory; strip the 'Category' namespace from the link text.
- $this->children[] = $this->getSkin()->makeKnownLinkObj(
- $title, $wgContLang->convertHtml( $title->getText() ) );
+ $this->children[] = $this->getSkin()->link(
+ $title,
+ null,
+ array(),
+ array(),
+ array( 'known', 'noclasses' )
+ );
$this->children_start_char[] = $this->getSubcategorySortChar( $title, $sortkey );
}
*/
function getSubcategorySortChar( $title, $sortkey ) {
global $wgContLang;
-
+
if( $title->getPrefixedText() == $sortkey ) {
$firstChar = $wgContLang->firstChar( $title->getDBkey() );
} else {
$firstChar = $wgContLang->firstChar( $sortkey );
}
-
+
return $wgContLang->convert( $firstChar );
}
/**
* Add a page in the image namespace
*/
- function addImage( $title, $sortkey, $pageLength ) {
+ function addImage( Title $title, $sortkey, $pageLength, $isRedirect = false ) {
if ( $this->showGallery ) {
- $image = new Image( $title );
if( $this->flip ) {
- $this->gallery->insert( $image );
+ $this->gallery->insert( $title );
} else {
- $this->gallery->add( $image );
+ $this->gallery->add( $title );
}
} else {
- $this->addPage( $title, $sortkey, $pageLength );
+ $this->addPage( $title, $sortkey, $pageLength, $isRedirect );
}
}
/**
* Add a miscellaneous page
*/
- function addPage( $title, $sortkey, $pageLength ) {
+ function addPage( $title, $sortkey, $pageLength, $isRedirect = false ) {
global $wgContLang;
- $this->articles[] = $this->getSkin()->makeSizeLinkObj(
- $pageLength, $title, $wgContLang->convert( $title->getPrefixedText() )
- );
+ $this->articles[] = $isRedirect
+ ? '<span class="redirect-in-category">' .
+ $this->getSkin()->link(
+ $title,
+ null,
+ array(),
+ array(),
+ array( 'known', 'noclasses' )
+ ) . '</span>'
+ : $this->getSkin()->makeSizeLinkObj( $pageLength, $title );
$this->articles_start_char[] = $wgContLang->convert( $wgContLang->firstChar( $sortkey ) );
}
}
function doCategoryQuery() {
- $dbr =& wfGetDB( DB_SLAVE );
+ $dbr = wfGetDB( DB_SLAVE, 'category' );
if( $this->from != '' ) {
$pageCondition = 'cl_sortkey >= ' . $dbr->addQuotes( $this->from );
$this->flip = false;
$this->flip = false;
}
$res = $dbr->select(
- array( 'page', 'categorylinks' ),
- array( 'page_title', 'page_namespace', 'page_len', 'cl_sortkey' ),
- array( $pageCondition,
- 'cl_from = page_id',
- 'cl_to' => $this->title->getDBKey()),
- #'page_is_redirect' => 0),
- #+ $pageCondition,
+ array( 'page', 'categorylinks', 'category' ),
+ array( 'page_title', 'page_namespace', 'page_len', 'page_is_redirect', 'cl_sortkey',
+ 'cat_id', 'cat_title', 'cat_subcats', 'cat_pages', 'cat_files' ),
+ array( $pageCondition, 'cl_to' => $this->title->getDBkey() ),
__METHOD__,
array( 'ORDER BY' => $this->flip ? 'cl_sortkey DESC' : 'cl_sortkey',
- 'LIMIT' => $this->limit + 1 ) );
+ 'USE INDEX' => array( 'categorylinks' => 'cl_sortkey' ),
+ 'LIMIT' => $this->limit + 1 ),
+ array( 'categorylinks' => array( 'INNER JOIN', 'cl_from = page_id' ),
+ 'category' => array( 'LEFT JOIN', 'cat_title = page_title AND page_namespace = ' . NS_CATEGORY ) )
+ );
$count = 0;
$this->nextPage = null;
$title = Title::makeTitle( $x->page_namespace, $x->page_title );
if( $title->getNamespace() == NS_CATEGORY ) {
- $this->addSubcategory( $title, $x->cl_sortkey, $x->page_len );
- } elseif( $title->getNamespace() == NS_IMAGE ) {
- $this->addImage( $title, $x->cl_sortkey, $x->page_len );
+ $cat = Category::newFromRow( $x, $title );
+ $this->addSubcategoryObject( $cat, $x->cl_sortkey, $x->page_len );
+ } elseif( $this->showGallery && $title->getNamespace() == NS_FILE ) {
+ $this->addImage( $title, $x->cl_sortkey, $x->page_len, $x->page_is_redirect );
} else {
- $this->addPage( $title, $x->cl_sortkey, $x->page_len );
+ $this->addPage( $title, $x->cl_sortkey, $x->page_len, $x->page_is_redirect );
}
}
- $dbr->freeResult( $res );
}
function getCategoryTop() {
- $r = "<br style=\"clear:both;\"/>\n";
- if( $this->until != '' ) {
- $r .= $this->pagingLinks( $this->title, $this->nextPage, $this->until, $this->limit );
- } elseif( $this->nextPage != '' || $this->from != '' ) {
- $r .= $this->pagingLinks( $this->title, $this->from, $this->nextPage, $this->limit );
- }
- return $r;
+ $r = $this->getCategoryBottom();
+ return $r === ''
+ ? $r
+ : "<br style=\"clear:both;\"/>\n" . $r;
}
function getSubcategorySection() {
# Don't show subcategories section if there are none.
$r = '';
- if( count( $this->children ) > 0 ) {
+ $rescnt = count( $this->children );
+ $dbcnt = $this->cat->getSubcatCount();
+ $countmsg = $this->getCountMessage( $rescnt, $dbcnt, 'subcat' );
+ if( $rescnt > 0 ) {
# Showing subcategories
- $r .= "<div id=\"subcategories\">\n";
+ $r .= "<div id=\"mw-subcategories\">\n";
$r .= '<h2>' . wfMsg( 'subcategories' ) . "</h2>\n";
- $r .= wfMsgExt( 'subcategorycount', array( 'parse' ), count( $this->children) );
+ $r .= $countmsg;
$r .= $this->formatList( $this->children, $this->children_start_char );
$r .= "\n</div>";
}
function getPagesSection() {
$ti = htmlspecialchars( $this->title->getText() );
- $r = "<div id=\"pages\">\n";
- $r .= '<h2>' . wfMsg( 'category_header', $ti ) . "</h2>\n";
- $r .= wfMsgExt( 'categoryarticlecount', array( 'parse' ), count( $this->articles) );
- $r .= $this->formatList( $this->articles, $this->articles_start_char );
- $r .= "\n</div>";
+ # Don't show articles section if there are none.
+ $r = '';
+
+ # FIXME, here and in the other two sections: we don't need to bother
+ # with this rigamarole 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 );
+ $countmsg = $this->getCountMessage( $rescnt, $dbcnt, 'article' );
+
+ if( $rescnt > 0 ) {
+ $r = "<div id=\"mw-pages\">\n";
+ $r .= '<h2>' . wfMsg( 'category_header', $ti ) . "</h2>\n";
+ $r .= $countmsg;
+ $r .= $this->formatList( $this->articles, $this->articles_start_char );
+ $r .= "\n</div>";
+ }
return $r;
}
function getImageSection() {
if( $this->showGallery && ! $this->gallery->isEmpty() ) {
- return $this->gallery->toHTML();
+ $dbcnt = $this->cat->getFileCount();
+ $rescnt = $this->gallery->count();
+ $countmsg = $this->getCountMessage( $rescnt, $dbcnt, 'file' );
+
+ return "<div id=\"mw-category-media\">\n" .
+ '<h2>' . wfMsg( 'category-media-header', htmlspecialchars( $this->title->getText() ) ) . "</h2>\n" .
+ $countmsg . $this->gallery->toHTML() . "\n</div>";
} else {
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
+ * @param $articles Array
+ * @param $articles_start_char Array
+ * @param $cutoff Int
+ * @return String
* @private
*/
function formatList( $articles, $articles_start_char, $cutoff = 6 ) {
* Format a list of articles chunked by letter in a three-column
* list, ordered vertically.
*
- * @param array $articles
- * @param array $articles_start_char
- * @return string
+ * TODO: Take the headers into account when creating columns, so they're
+ * more visually equal.
+ *
+ * More distant TODO: Scrap this and use CSS columns, whenever IE finally
+ * supports those.
+ *
+ * @param $articles Array
+ * @param $articles_start_char Array
+ * @return String
* @private
*/
function columnList( $articles, $articles_start_char ) {
- // divide list into three equal chunks
- $chunk = (int) (count ( $articles ) / 3);
+ $columns = array_combine( $articles, $articles_start_char );
+ # Split into three columns
+ $columns = array_chunk( $columns, ceil( count( $columns )/3 ), true /* preserve keys */ );
- // get and display header
- $r = '<table width="100%"><tr valign="top">';
+ $ret = '<table width="100%"><tr valign="top"><td>';
+ $prevchar = null;
- $prev_start_char = 'none';
+ foreach ( $columns as $column ) {
+ $colContents = array();
- // loop through the chunks
- for($startChunk = 0, $endChunk = $chunk, $chunkIndex = 0;
- $chunkIndex < 3;
- $chunkIndex++, $startChunk = $endChunk, $endChunk += $chunk + 1)
- {
- $r .= "<td>\n";
- $atColumnTop = true;
+ # Kind of like array_flip() here, but we keep duplicates in an
+ # array instead of dropping them.
+ foreach ( $column as $article => $char ) {
+ if ( !isset( $colContents[$char] ) ) {
+ $colContents[$char] = array();
+ }
+ $colContents[$char][] = $article;
+ }
- // output all articles in category
- for ($index = $startChunk ;
- $index < $endChunk && $index < count($articles);
- $index++ )
- {
- // check for change of starting letter or begining of chunk
- if ( ($index == $startChunk) ||
- ($articles_start_char[$index] != $articles_start_char[$index - 1]) )
-
- {
- if( $atColumnTop ) {
- $atColumnTop = false;
- } else {
- $r .= "</ul>\n";
- }
- $cont_msg = "";
- if ( $articles_start_char[$index] == $prev_start_char )
- $cont_msg = wfMsgHtml('listingcontinuesabbrev');
- $r .= "<h3>" . htmlspecialchars( $articles_start_char[$index] ) . "$cont_msg</h3>\n<ul>";
- $prev_start_char = $articles_start_char[$index];
+ $first = true;
+ foreach ( $colContents as $char => $articles ) {
+ $ret .= '<h3>' . htmlspecialchars( $char );
+ if ( $first && $char === $prevchar ) {
+ # We're continuing a previous chunk at the top of a new
+ # column, so add " cont." after the letter.
+ $ret .= ' ' . wfMsgHtml( 'listingcontinuesabbrev' );
}
+ $ret .= "</h3>\n";
- $r .= "<li>{$articles[$index]}</li>";
- }
- if( !$atColumnTop ) {
- $r .= "</ul>\n";
- }
- $r .= "</td>\n";
+ $ret .= '<ul><li>';
+ $ret .= implode( "</li>\n<li>", $articles );
+ $ret .= '</li></ul>';
+ $first = false;
+ $prevchar = $char;
+ }
+ $ret .= "</td>\n<td>";
}
- $r .= '</tr></table>';
- return $r;
+
+ $ret .= '</td></tr></table>';
+ return $ret;
}
/**
* Format a list of articles chunked by letter in a bullet list.
- * @param array $articles
- * @param array $articles_start_char
- * @return string
+ * @param $articles Array
+ * @param $articles_start_char Array
+ * @return String
* @private
*/
function shortList( $articles, $articles_start_char ) {
}
/**
- * @param Title $title
- * @param string $first
- * @param string $last
- * @param int $limit
- * @param array $query - additional query options to pass
- * @return string
+ * @param $title Title object
+ * @param $first String
+ * @param $last String
+ * @param $limit Int
+ * @param $query Array: additional query options to pass
+ * @return String
* @private
*/
function pagingLinks( $title, $first, $last, $limit, $query = array() ) {
- global $wgUser, $wgLang;
- $sk =& $this->getSkin();
+ global $wgLang;
+ $sk = $this->getSkin();
$limitText = $wgLang->formatNum( $limit );
- $prevLink = htmlspecialchars( wfMsg( 'prevn', $limitText ) );
+ $prevLink = wfMsgExt( 'prevn', array( 'escape', 'parsemag' ), $limitText );
if( $first != '' ) {
- $prevLink = $sk->makeLinkObj( $title, $prevLink,
- wfArrayToCGI( $query + array( 'until' => $first ) ) );
+ $prevQuery = $query;
+ $prevQuery['until'] = $first;
+ $prevLink = $sk->linkKnown(
+ $title,
+ $prevLink,
+ array(),
+ $prevQuery
+ );
}
- $nextLink = htmlspecialchars( wfMsg( 'nextn', $limitText ) );
+ $nextLink = wfMsgExt( 'nextn', array( 'escape', 'parsemag' ), $limitText );
if( $last != '' ) {
- $nextLink = $sk->makeLinkObj( $title, $nextLink,
- wfArrayToCGI( $query + array( 'from' => $last ) ) );
+ $lastQuery = $query;
+ $lastQuery['from'] = $last;
+ $nextLink = $sk->linkKnown(
+ $title,
+ $nextLink,
+ array(),
+ $lastQuery
+ );
}
return "($prevLink) ($nextLink)";
}
-}
-
-?>
+ /**
+ * What to do if the category table conflicts with the number of results
+ * returned? This function says what. It works the same whether the
+ * things being counted are articles, subcategories, or files.
+ *
+ * Note for grepping: uses the messages category-article-count,
+ * category-article-count-limited, category-subcat-count,
+ * category-subcat-count-limited, category-file-count,
+ * category-file-count-limited.
+ *
+ * @param $rescnt Int: The number of items returned by our database query.
+ * @param $dbcnt Int: The number of items according to the category table.
+ * @param $type String: 'subcat', 'article', or 'file'
+ * @return String: A message giving the number of items, to output to HTML.
+ */
+ private function getCountMessage( $rescnt, $dbcnt, $type ) {
+ global $wgLang;
+ # 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.
+ $totalrescnt = count( $this->articles ) + count( $this->children ) +
+ ($this->showGallery ? $this->gallery->count() : 0);
+ if($dbcnt == $rescnt || (($totalrescnt == $this->limit || $this->from
+ || $this->until) && $dbcnt > $rescnt)){
+ # Case 1: seems sane.
+ $totalcnt = $dbcnt;
+ } elseif($totalrescnt < $this->limit && !$this->from && !$this->until){
+ # 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;
+ $this->cat->refreshCounts();
+ } else {
+ # Case 3: hopeless. Don't give a total count at all.
+ return wfMsgExt("category-$type-count-limited", 'parse',
+ $wgLang->formatNum( $rescnt ) );
+ }
+ return wfMsgExt( "category-$type-count", 'parse', $wgLang->formatNum( $rescnt ),
+ $wgLang->formatNum( $totalcnt ) );
+ }
+}