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