-<?
-# Cache for article titles and ids linked from one source
+<?php
+# Cache for article titles (prefixed DB keys) and ids linked from one source
# These are used in incrementalSetup()
define ('LINKCACHE_GOOD', 0);
class LinkCache {
// Increment $mClassVer whenever old serialized versions of this class
// becomes incompatible with the new version.
- /* private */ var $mClassVer = 1;
+ /* private */ var $mClassVer = 2;
/* private */ var $mGoodLinks, $mBadLinks, $mActive;
- /* private */ var $mImageLinks;
+ /* private */ var $mImageLinks, $mCategoryLinks;
/* private */ var $mPreFilled, $mOldGoodLinks, $mOldBadLinks;
/* private */ function getKey( $title ) {
$this->mGoodLinks = array();
$this->mBadLinks = array();
$this->mImageLinks = array();
+ $this->mCategoryLinks = array();
$this->mOldGoodLinks = array();
$this->mOldBadLinks = array();
}
{
if ( $this->mActive ) { $this->mImageLinks[$nt->getDBkey()] = 1; }
}
+
+ function addCategoryLink( $title, $sortkey ) {
+ if ( $this->mActive ) { $this->mCategoryLinks[$title] = $sortkey; }
+ }
+
+ function addCategoryLinkObj( &$nt, $sortkey ) {
+ $this->addCategoryLink( $nt->getDBkey(), $sortkey );
+ }
function clearBadLink( $title )
{
function getGoodLinks() { return $this->mGoodLinks; }
function getBadLinks() { return array_keys( $this->mBadLinks ); }
function getImageLinks() { return $this->mImageLinks; }
+ function getCategoryLinks() { return $this->mCategoryLinks; }
function addLink( $title )
{
function addLinkObj( &$nt )
{
global $wgMemc, $wgLinkCacheMemcached;
-
$title = $nt->getPrefixedDBkey();
if ( $this->isBadLink( $title ) ) { return 0; }
$id = $this->getGoodLinkID( $title );
return 0;
}
- $id = FALSE;
+ $id = NULL;
if( $wgLinkCacheMemcached )
$id = $wgMemc->get( $key = $this->getKey( $title ) );
- if( $id === FALSE ) {
+ if( ! is_integer( $id ) ) {
$sql = "SELECT cur_id FROM cur WHERE cur_namespace=" .
"{$ns} AND cur_title='" . wfStrencode( $t ) . "'";
$res = wfQuery( $sql, DB_READ, "LinkCache::addLink" );
$id = $s->cur_id;
}
if( $wgLinkCacheMemcached )
- $wgMemc->add( $key, $id, time()+3600 );
+ $wgMemc->add( $key, $id, 3600*24 );
}
if ( 0 == $id ) { $this->addBadLink( $title ); }
function preFill( &$fromtitle )
{
- global $wgEnablePersistentLC, $wgCompressedPersistentLC;
+ global $wgEnablePersistentLC;
$fname = "LinkCache::preFill";
wfProfileIn( $fname );
# Note -- $fromtitle is a Title *object*
- $dbkeyfrom = wfStrencode( $fromtitle->getPrefixedDBKey() );
+ $this->suspend();
+ $id = $fromtitle->getArticleID();
+ $this->resume();
+
+ if( $id == 0 ) {
+ wfDebug( "$fname - got id 0 for title '" . $fromtitle->getPrefixedDBkey() . "'\n" );
+ wfProfileOut( $fname );
+ return;
+ }
+
if ( $wgEnablePersistentLC ) {
- $cc =& $this->getFromLinkscc( $dbkeyfrom );
- if( $cc != FALSE ){
- $this->mOldGoodLinks = $this->mGoodLinks = $cc->mGoodLinks;
- $this->mOldBadLinks = $this->mBadLinks = $cc->mBadLinks;
- $this->mPreFilled = true;
+ if( $this->fillFromLinkscc( $id ) ){
wfProfileOut( $fname );
- wfDebug( "LinkCache::preFill - got from linkscc\n" );
return;
- }
+ }
}
-
$sql = "SELECT cur_id,cur_namespace,cur_title
FROM cur,links
- WHERE cur_id=l_to AND l_from='{$dbkeyfrom}'";
+ WHERE cur_id=l_to AND l_from=$id";
$res = wfQuery( $sql, DB_READ, $fname );
while( $s = wfFetchObject( $res ) ) {
$this->addGoodLink( $s->cur_id,
);
}
- $this->suspend();
- $id = $fromtitle->getArticleID();
- $this->resume();
-
$sql = "SELECT bl_to
FROM brokenlinks
WHERE bl_from='{$id}'";
$this->mPreFilled = true;
if ( $wgEnablePersistentLC ) {
- // put fetched link data into cache
- if( $wgCompressedPersistentLC and function_exists( "gzcompress" ) ) {
- $ser = wfStrencode( gzcompress( serialize( $this ), 3 ));
- } else {
- $ser = wfStrencode( serialize( $this ) );
- }
- wfQuery("REPLACE INTO linkscc VALUES({$id}, '{$dbkeyfrom}', '{$ser}')",
- DB_WRITE);
- wfDebug( "LinkCache::preFill - saved to linkscc\n" );
+ $this->saveToLinkscc( $id );
}
-
wfProfileOut( $fname );
}
$this->mImageLinks = array();
}
-
- function &getFromLinkscc( $dbkeyfrom ){
- $res = wfQuery("SELECT lcc_cacheobj FROM linkscc WHERE lcc_title = '{$dbkeyfrom}'",
+ /* private */ function fillFromLinkscc( $id ){
+ $id = IntVal( $id );
+ $res = wfQuery("SELECT lcc_cacheobj FROM linkscc WHERE lcc_pageid = $id",
DB_READ);
$row = wfFetchObject( $res );
if( $row == FALSE)
}
$cc = @unserialize( $cacheobj );
if( isset( $cc->mClassVer ) and ($cc->mClassVer == $this->mClassVer ) ){
- return $cc;
+ $this->mOldGoodLinks = $this->mGoodLinks = $cc->mGoodLinks;
+ $this->mOldBadLinks = $this->mBadLinks = $cc->mBadLinks;
+ $this->mPreFilled = true;
+ return TRUE;
} else {
return FALSE;
}
+
+ }
+
+ /* private */ function saveToLinkscc( $pid ){
+ global $wgCompressedPersistentLC, $wgIsMySQL;
+ if( $wgCompressedPersistentLC and function_exists( "gzcompress" ) ) {
+ $ser = wfStrencode( gzcompress( serialize( $this ), 3 ));
+ } else {
+ $ser = wfStrencode( serialize( $this ) );
+ }
+ if ($wgIsMySQL) {
+ wfQuery("REPLACE INTO linkscc(lcc_pageid,lcc_cacheobj) " .
+ "VALUES({$pid}, '{$ser}')", DB_WRITE);
+ } else {
+ wfQuery("DELETE FROM linkscc WHERE lcc_pageid={$pid}",DB_WRITE);
+ wfQuery("INSERT INTO linkscc(lcc_pageid,lcc_cacheobj) " .
+ "VALUES({$pid}, '{$ser}')", DB_WRITE);
+ }
+ }
+
+ # $pid is a page id
+ /* static */ function linksccClearLinksTo( $pid ){
+ global $wgEnablePersistentLC, $wgIsMySQL;
+ if ( $wgEnablePersistentLC ) {
+ $pid = intval( $pid );
+ if ($wgIsMySQL) {
+ wfQuery("DELETE linkscc FROM linkscc,links ".
+ "WHERE lcc_pageid=links.l_from AND l_to={$pid}", DB_WRITE);
+ } else {
+ wfQuery("DELETE FROM linkscc WHERE lcc_pageid IN ".
+ "(SELECT l_from FROM links WHERE l_to={$pid}", DB_WRITE);
+ }
+ wfQuery("DELETE FROM linkscc WHERE lcc_pageid='{$pid}')", DB_WRITE);
+ }
+ }
+
+ # $title is a prefixed db title, for example like Title->getPrefixedDBkey() returns.
+ /* static */ function linksccClearBrokenLinksTo( $title ){
+ global $wgEnablePersistentLC,$wgIsMySQL;
+ if ( $wgEnablePersistentLC ) {
+ $title = wfStrencode( $title );
+ if ($wgIsMySQL) {
+ wfQuery("DELETE linkscc FROM linkscc,brokenlinks ".
+ "WHERE lcc_pageid=bl_from AND bl_to='{$title}'", DB_WRITE);
+ } else {
+ wfQuery("DELETE FROM linkscc WHERE lcc_pageid IN ".
+ "(SELECT bl_from FROM brokenlinks ".
+ "WHERE bl_to='{$title}')",DB_WRITE);
+ }
+ }
+ }
+
+ # $pid is a page id
+ /* static */ function linksccClearPage( $pid ){
+ global $wgEnablePersistentLC;
+ if ( $wgEnablePersistentLC ) {
+ $pid = intval( $pid );
+ wfQuery("DELETE FROM linkscc WHERE lcc_pageid='{$pid}'", DB_WRITE);
+ }
}
}
?>