292 lines
12 KiB
PHP
292 lines
12 KiB
PHP
<?php
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/**
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* Special handling for category description pages
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* Modelled after ImagePage.php
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*
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* @package MediaWiki
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*/
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/**
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* @package MediaWiki
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*/
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class CategoryPage extends Article {
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function view() {
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if ( NS_CATEGORY == $this->mTitle->getNamespace() ) {
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$this->openShowCategory();
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}
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Article::view();
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# If the article we've just shown is in the "Image" namespace,
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# follow it with the history list and link list for the image
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# it describes.
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if ( NS_CATEGORY == $this->mTitle->getNamespace() ) {
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$this->closeShowCategory();
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}
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}
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function openShowCategory() {
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# For overloading
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}
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# generate a list of subcategories and pages for a category
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# depending on wfMsg("usenewcategorypage") it either calls the new
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# or the old code. The new code will not work properly for some
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# languages due to sorting issues, so they might want to turn it
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# off.
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function closeShowCategory() {
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global $wgOut;
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$msg = wfMsg('usenewcategorypage');
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if ( '0' == @$msg[0] )
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{
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$wgOut->addHTML( $this->oldCategoryMagic() );
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} else {
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$wgOut->addHTML( $this->newCategoryMagic() );
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}
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}
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# This method generates the list of subcategories and pages for a category
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function oldCategoryMagic () {
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global $wgContLang, $wgUser ;
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$fname = 'CategoryPage::oldCategoryMagic';
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$sk =& $wgUser->getSkin() ;
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$articles = array() ;
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$children = array() ;
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$r = '';
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$id = $this->mTitle->getArticleID() ;
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# FIXME: add limits
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$dbr =& wfGetDB( DB_SLAVE );
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$cur = $dbr->tableName( 'cur' );
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$categorylinks = $dbr->tableName( 'categorylinks' );
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$t = $dbr->strencode( $this->mTitle->getDBKey() );
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$sql = "SELECT DISTINCT cur_title,cur_namespace FROM $cur,$categorylinks " .
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"WHERE cl_to='$t' AND cl_from=cur_id ORDER BY cl_sortkey" ;
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$res = $dbr->query( $sql, $fname ) ;
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# For all pages that link to this category
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while ( $x = $dbr->fetchObject ( $res ) )
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{
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$t = $wgContLang->getNsText ( $x->cur_namespace ) ;
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if ( $t != '' ) $t .= ':' ;
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$t .= $x->cur_title ;
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if ( $x->cur_namespace == NS_CATEGORY ) {
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array_push ( $children , $sk->makeLink ( $t ) ) ; # Subcategory
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} else {
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array_push ( $articles , $sk->makeLink ( $t ) ) ; # Page in this category
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}
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}
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$dbr->freeResult ( $res ) ;
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# Showing subcategories
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if ( count ( $children ) > 0 ) {
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$r .= '<h2>'.wfMsg('subcategories')."</h2>\n" ;
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$r .= implode ( ', ' , $children ) ;
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}
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# Showing pages in this category
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if ( count ( $articles ) > 0 ) {
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$ti = $this->mTitle->getText() ;
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$h = wfMsg( 'category_header', $ti );
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$r .= "<h2>$h</h2>\n" ;
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$r .= implode ( ', ' , $articles ) ;
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}
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return $r ;
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}
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function newCategoryMagic () {
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global $wgContLang,$wgUser;
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$sk =& $wgUser->getSkin();
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$r = "<br style=\"clear:both;\"/>\n";
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$articles = array() ;
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$articles_start_char = array();
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$children = array() ;
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$children_start_char = array();
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$data = array () ;
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$id = $this->mTitle->getArticleID() ;
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# FIXME: add limits
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$dbr =& wfGetDB( DB_SLAVE );
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$cur = $dbr->tableName( 'cur' );
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$categorylinks = $dbr->tableName( 'categorylinks' );
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$t = $dbr->strencode( $this->mTitle->getDBKey() );
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$sql = "SELECT DISTINCT cur_title,cur_namespace,cl_sortkey FROM " .
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"$cur,$categorylinks WHERE cl_to='$t' AND cl_from=cur_id ORDER BY cl_sortkey" ;
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$res = $dbr->query ( $sql ) ;
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while ( $x = $dbr->fetchObject ( $res ) )
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{
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$t = $ns = $wgContLang->getNsText ( $x->cur_namespace ) ;
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if ( $t != '' ) $t .= ':' ;
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$t .= $x->cur_title ;
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if ( $x->cur_namespace == NS_CATEGORY ) {
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$ctitle = str_replace( '_',' ',$x->cur_title );
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array_push ( $children, $sk->makeKnownLink ( $t, $ctitle ) ) ; # Subcategory
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// If there's a link from Category:A to Category:B, the sortkey of the resulting
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// entry in the categorylinks table is Category:A, not A, which it SHOULD be.
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// Workaround: If sortkey == "Category:".$title, than use $title for sorting,
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// else use sortkey...
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if ( ($ns.':'.$ctitle) == $x->cl_sortkey ) {
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array_push ( $children_start_char, $wgContLang->firstChar( $x->cur_title ) );
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} else {
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array_push ( $children_start_char, $wgContLang->firstChar( $x->cl_sortkey ) ) ;
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}
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} else {
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array_push ( $articles , $sk->makeKnownLink ( $t ) ) ; # Page in this category
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array_push ( $articles_start_char, $wgContLang->firstChar( $x->cl_sortkey ) ) ;
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}
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}
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$dbr->freeResult ( $res ) ;
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$ti = $this->mTitle->getText() ;
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# Don't show subcategories section if there are none.
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if ( count ( $children ) > 0 )
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{
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# Showing subcategories
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$r .= '<h2>' . wfMsg( 'subcategories' ) . "</h2>\n";
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$numchild = count( $children );
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if($numchild == 1) {
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$r .= wfMsg( 'subcategorycount1', 1 );
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} else {
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$r .= wfMsg( 'subcategorycount' , $numchild );
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}
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unset($numchild);
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if ( count ( $children ) > 6 ) {
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// divide list into three equal chunks
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$chunk = (int) (count ( $children ) / 3);
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// get and display header
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$r .= '<table width="100%"><tr valign="top">';
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$startChunk = 0;
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$endChunk = $chunk;
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// loop through the chunks
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for($startChunk = 0, $endChunk = $chunk, $chunkIndex = 0;
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$chunkIndex < 3;
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$chunkIndex++, $startChunk = $endChunk, $endChunk += $chunk + 1)
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{
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$r .= '<td><ul>';
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// output all subcategories to category
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for ($index = $startChunk ;
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$index < $endChunk && $index < count($children);
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$index++ )
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{
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// check for change of starting letter or begging of chunk
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if ( ($index == $startChunk)
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|| ($children_start_char[$index] != $children_start_char[$index - 1]) )
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{
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$r .= "</ul><h3>{$children_start_char[$index]}</h3>\n<ul>";
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}
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$r .= "<li>{$children[$index]}</li>";
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}
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$r .= '</ul></td>';
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}
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$r .= '</tr></table>';
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} else {
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// for short lists of subcategories to category.
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$r .= "<h3>{$children_start_char[0]}</h3>\n";
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$r .= '<ul><li>'.$children[0].'</li>';
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for ($index = 1; $index < count($children); $index++ )
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{
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if ($children_start_char[$index] != $children_start_char[$index - 1])
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{
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$r .= "</ul><h3>{$children_start_char[$index]}</h3>\n<ul>";
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}
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$r .= "<li>{$children[$index]}</li>";
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}
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$r .= '</ul>';
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}
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} # END of if ( count($children) > 0 )
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$r .= '<h2>' . wfMsg( 'category_header', $ti ) . "</h2>\n";
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$numart = count( $articles );
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if($numart == 1) {
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$r .= wfMsg( 'categoryarticlecount1', 1 );
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} else {
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$r .= wfMsg( 'categoryarticlecount' , $numart );
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}
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unset($numart);
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# Showing articles in this category
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if ( count ( $articles ) > 6) {
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$ti = $this->mTitle->getText() ;
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// divide list into three equal chunks
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$chunk = (int) (count ( $articles ) / 3);
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// get and display header
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$r .= '<table width="100%"><tr valign="top">';
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// loop through the chunks
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for($startChunk = 0, $endChunk = $chunk, $chunkIndex = 0;
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$chunkIndex < 3;
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$chunkIndex++, $startChunk = $endChunk, $endChunk += $chunk + 1)
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{
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$r .= '<td><ul>';
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// output all articles in category
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for ($index = $startChunk ;
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$index < $endChunk && $index < count($articles);
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$index++ )
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{
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// check for change of starting letter or begging of chunk
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if ( ($index == $startChunk) ||
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($articles_start_char[$index] != $articles_start_char[$index - 1]) )
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{
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$r .= "</ul><h3>{$articles_start_char[$index]}</h3>\n<ul>";
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}
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$r .= "<li>{$articles[$index]}</li>";
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}
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$r .= '</ul></td>';
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}
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$r .= '</tr></table>';
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} elseif ( count($articles) > 0) {
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// for short lists of articles in categories.
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$ti = $this->mTitle->getText() ;
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$r .= '<h3>'.$articles_start_char[0]."</h3>\n";
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$r .= '<ul><li>'.$articles[0].'</li>';
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for ($index = 1; $index < count($articles); $index++ )
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{
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if ($articles_start_char[$index] != $articles_start_char[$index - 1])
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{
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$r .= "</ul><h3>{$articles_start_char[$index]}</h3>\n<ul>";
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}
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$r .= "<li>{$articles[$index]}</li>";
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}
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$r .= '</ul>';
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}
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return $r ;
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}
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}
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?>
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