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<?php
/**
*
* @addtogroup SpecialPage
*/
/**
*
* @addtogroup SpecialPage
*/
class UnusedCategoriesPage extends QueryPage {
function getName() {
return 'Unusedcategories';
}
function getPageHeader() {
return wfMsgExt( 'unusedcategoriestext', array( 'parse' ) );
}
function getSQL() {
$NScat = NS_CATEGORY;
$dbr = wfGetDB( DB_SLAVE );
list( $categorylinks, $page ) = $dbr->tableNamesN( 'categorylinks', 'page' );
return "SELECT 'Unusedcategories' as type,
{$NScat} as namespace, page_title as title, page_title as value
FROM $page
LEFT JOIN $categorylinks ON page_title=cl_to
WHERE cl_from IS NULL
AND page_namespace = {$NScat}
AND page_is_redirect = 0";
}
function formatResult( $skin, $result ) {
$title = Title::makeTitle( NS_CATEGORY, $result->title );
return $skin->makeLinkObj( $title, $title->getText() );
}
}
/** constructor */
function wfSpecialUnusedCategories() {
list( $limit, $offset ) = wfCheckLimits();
$uc = new UnusedCategoriesPage();
return $uc->doQuery( $offset, $limit );
}
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