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<?php
/**
* Static accessor class for site_stats and related things
*/
class SiteStats {
static $row, $loaded = false;
static $admins;
static $pageCount = array();
static function recache() {
self::load( true );
}
static function load( $recache = false ) {
if ( self::$loaded && !$recache ) {
return;
}
self::$row = self::loadAndLazyInit();
# This code is somewhat schema-agnostic, because I'm changing it in a minor release -- TS
if ( !isset( self::$row->ss_total_pages ) && self::$row->ss_total_pages == -1 ) {
# Update schema
$u = new SiteStatsUpdate( 0, 0, 0 );
$u->doUpdate();
$dbr = wfGetDB( DB_SLAVE );
self::$row = $dbr->selectRow( 'site_stats', '*', false, __METHOD__ );
}
}
static function loadAndLazyInit() {
wfDebug( __METHOD__ . ": reading site_stats from slave\n" );
$row = self::doLoad( wfGetDB( DB_SLAVE ) );
if( $row === false ) {
// Might have just been initialzed during this request?
wfDebug( __METHOD__ . ": site_stats missing on slave\n" );
$row = self::doLoad( wfGetDB( DB_MASTER ) );
}
if( $row === false ) {
// Normally the site_stats table is initialized at install time.
// Some manual construction scenarios may leave the table empty,
// however, for instance when importing from a dump into a clean
// schema with mwdumper.
wfDebug( __METHOD__ . ": initializing empty site_stats\n" );
global $IP;
require_once "$IP/maintenance/initStats.inc";
ob_start();
wfInitStats();
ob_end_clean();
$row = self::doLoad( wfGetDB( DB_MASTER ) );
}
if( $row === false ) {
wfDebug( __METHOD__ . ": init of site_stats failed o_O\n" );
}
return $row;
}
static function doLoad( $db ) {
return $db->selectRow( 'site_stats', '*', false, __METHOD__ );
}
static function views() {
self::load();
return self::$row->ss_total_views;
}
static function edits() {
self::load();
return self::$row->ss_total_edits;
}
static function articles() {
self::load();
return self::$row->ss_good_articles;
}
static function pages() {
self::load();
return self::$row->ss_total_pages;
}
static function users() {
self::load();
return self::$row->ss_users;
}
static function images() {
self::load();
return self::$row->ss_images;
}
static function admins() {
if ( !isset( self::$admins ) ) {
$dbr = wfGetDB( DB_SLAVE );
self::$admins = $dbr->selectField( 'user_groups', 'COUNT(*)', array( 'ug_group' => 'sysop' ), __METHOD__ );
}
return self::$admins;
}
static function pagesInNs( $ns ) {
wfProfileIn( __METHOD__ );
if( !isset( self::$pageCount[$ns] ) ) {
$dbr = wfGetDB( DB_SLAVE );
$pageCount[$ns] = (int)$dbr->selectField( 'page', 'COUNT(*)', array( 'page_namespace' => $ns ), __METHOD__ );
}
wfProfileOut( __METHOD__ );
return $pageCount[$ns];
}
}
/**
*
*/
class SiteStatsUpdate {
var $mViews, $mEdits, $mGood, $mPages, $mUsers;
function __construct( $views, $edits, $good, $pages = 0, $users = 0 ) {
$this->mViews = $views;
$this->mEdits = $edits;
$this->mGood = $good;
$this->mPages = $pages;
$this->mUsers = $users;
}
function appendUpdate( &$sql, $field, $delta ) {
if ( $delta ) {
if ( $sql ) {
$sql .= ',';
}
if ( $delta < 0 ) {
$sql .= "$field=$field-1";
} else {
$sql .= "$field=$field+1";
}
}
}
function doUpdate() {
$fname = 'SiteStatsUpdate::doUpdate';
$dbw = wfGetDB( DB_MASTER );
# First retrieve the row just to find out which schema we're in
$row = $dbw->selectRow( 'site_stats', '*', false, $fname );
$updates = '';
$this->appendUpdate( $updates, 'ss_total_views', $this->mViews );
$this->appendUpdate( $updates, 'ss_total_edits', $this->mEdits );
$this->appendUpdate( $updates, 'ss_good_articles', $this->mGood );
if ( isset( $row->ss_total_pages ) ) {
# Update schema if required
if ( $row->ss_total_pages == -1 && !$this->mViews ) {
$dbr = wfGetDB( DB_SLAVE, array( 'SpecialStatistics', 'vslow') );
list( $page, $user ) = $dbr->tableNamesN( 'page', 'user' );
$sql = "SELECT COUNT(page_namespace) AS total FROM $page";
$res = $dbr->query( $sql, $fname );
$pageRow = $dbr->fetchObject( $res );
$pages = $pageRow->total + $this->mPages;
$sql = "SELECT COUNT(user_id) AS total FROM $user";
$res = $dbr->query( $sql, $fname );
$userRow = $dbr->fetchObject( $res );
$users = $userRow->total + $this->mUsers;
if ( $updates ) {
$updates .= ',';
}
$updates .= "ss_total_pages=$pages, ss_users=$users";
} else {
$this->appendUpdate( $updates, 'ss_total_pages', $this->mPages );
$this->appendUpdate( $updates, 'ss_users', $this->mUsers );
}
}
if ( $updates ) {
$site_stats = $dbw->tableName( 'site_stats' );
$sql = $dbw->limitResultForUpdate("UPDATE $site_stats SET $updates", 1);
$dbw->begin();
$dbw->query( $sql, $fname );
$dbw->commit();
}
/*
global $wgDBname, $wgTitle;
if ( $this->mGood && $wgDBname == 'enwiki' ) {
$good = $dbw->selectField( 'site_stats', 'ss_good_articles', '', $fname );
error_log( $good . ' ' . $wgTitle->getPrefixedDBkey() . "\n", 3, '/home/wikipedia/logs/million.log' );
}
*/
}
}
?>
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