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<?php
/**
* @file
* @ingroup SpecialPage
*/
function wfSpecialCategories( $par=null ) {
global $wgOut, $wgRequest;
if( $par == '' ) {
$from = $wgRequest->getText( 'from' );
} else {
$from = $par;
}
$wgOut->allowClickjacking();
$cap = new CategoryPager( $from );
$cap->doQuery();
$wgOut->addHTML(
XML::openElement( 'div', array('class' => 'mw-spcontent') ) .
wfMsgExt( 'categoriespagetext', array( 'parse' ), $cap->getNumRows() ) .
$cap->getStartForm( $from ) .
$cap->getNavigationBar() .
'<ul>' . $cap->getBody() . '</ul>' .
$cap->getNavigationBar() .
XML::closeElement( 'div' )
);
}
/**
* TODO: Allow sorting by count. We need to have a unique index to do this
* properly.
*
* @ingroup SpecialPage Pager
*/
class CategoryPager extends AlphabeticPager {
function __construct( $from ) {
parent::__construct();
$from = str_replace( ' ', '_', $from );
if( $from !== '' ) {
$from = Title::capitalize( $from, NS_CATEGORY );
$this->mOffset = $from;
}
}
function getQueryInfo() {
return array(
'tables' => array( 'category' ),
'fields' => array( 'cat_title','cat_pages' ),
'conds' => array( 'cat_pages > 0' ),
'options' => array( 'USE INDEX' => 'cat_title' ),
);
}
function getIndexField() {
# return array( 'abc' => 'cat_title', 'count' => 'cat_pages' );
return 'cat_title';
}
function getDefaultQuery() {
parent::getDefaultQuery();
unset( $this->mDefaultQuery['from'] );
return $this->mDefaultQuery;
}
# protected function getOrderTypeMessages() {
# return array( 'abc' => 'special-categories-sort-abc',
# 'count' => 'special-categories-sort-count' );
# }
protected function getDefaultDirections() {
# return array( 'abc' => false, 'count' => true );
return false;
}
/* Override getBody to apply LinksBatch on resultset before actually outputting anything. */
public function getBody() {
$batch = new LinkBatch;
$this->mResult->rewind();
while ( $row = $this->mResult->fetchObject() ) {
$batch->addObj( Title::makeTitleSafe( NS_CATEGORY, $row->cat_title ) );
}
$batch->execute();
$this->mResult->rewind();
return parent::getBody();
}
function formatRow($result) {
global $wgLang;
$title = Title::makeTitle( NS_CATEGORY, $result->cat_title );
$titleText = $this->getSkin()->link( $title, htmlspecialchars( $title->getText() ) );
$count = wfMsgExt( 'nmembers', array( 'parsemag', 'escape' ),
$wgLang->formatNum( $result->cat_pages ) );
return Xml::tags('li', null, "$titleText ($count)" ) . "\n";
}
public function getStartForm( $from ) {
global $wgScript;
$t = SpecialPage::getTitleFor( 'Categories' );
return
Xml::tags( 'form', array( 'method' => 'get', 'action' => $wgScript ),
Xml::hidden( 'title', $t->getPrefixedText() ) .
Xml::fieldset( wfMsg( 'categories' ),
Xml::inputLabel( wfMsg( 'categoriesfrom' ),
'from', 'from', 20, $from ) .
' ' .
Xml::submitButton( wfMsg( 'allpagessubmit' ) ) ) );
}
}
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