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<?php
/**
* Support class for the updateArticleCount.php maintenance script
*
* @package MediaWiki
* @subpackage Maintenance
* @author Rob Church <robchur@gmail.com>
*/
class ArticleCounter {
var $dbr;
var $namespaces;
function ArticleCounter() {
global $wgContentNamespaces;
$this->namespaces = $wgContentNamespaces;
$this->dbr =& wfGetDB( DB_SLAVE );
}
/**
* Produce a comma-delimited set of namespaces
* Includes paranoia
*
* @return string
*/
function makeNsSet() {
foreach( $this->namespaces as $namespace )
$namespaces[] = intval( $namespace );
return implode( ', ', $namespaces );
}
/**
* Produce SQL for the query
*
* @return string
*/
function makeSql() {
extract( $this->dbr->tableNames( 'page', 'pagelinks' ) );
$nsset = $this->makeNsSet();
return "SELECT COUNT(*) AS count FROM {$page}
LEFT JOIN {$pagelinks} ON pl_from = page_id
WHERE page_namespace IN ( $nsset )
AND page_is_redirect = 0
AND page_len > 0
AND pl_namespace IS NOT NULL";
}
/**
* Count the number of valid content pages in the wiki
*
* @return mixed Integer, or false if there's a problem
*/
function count() {
$res = $this->dbr->query( $this->makeSql(), __METHOD__ );
if( $res ) {
$row = $this->dbr->fetchObject( $res );
$this->dbr->freeResult( $res );
return (int)$row->count;
} else {
return false; # Look out for this when handling the result
}
}
}
?>
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