<?php
/**
* Cache for article titles (prefixed DB keys) and ids linked from one source
- * @package MediaWiki
- * @subpackage Cache
- */
-
-/**
- *
- */
-# These are used in incrementalSetup()
-define ('LINKCACHE_GOOD', 0);
-define ('LINKCACHE_BAD', 1);
-define ('LINKCACHE_IMAGE', 2);
-define ('LINKCACHE_PAGE', 3);
-
-/**
- * @package MediaWiki
- * @subpackage Cache
+ *
+ * @addtogroup Cache
*/
class LinkCache {
// Increment $mClassVer whenever old serialized versions of this class
/* private */ var $mClassVer = 3;
/* private */ var $mPageLinks;
- /* private */ var $mGoodLinks, $mBadLinks, $mActive;
- /* private */ var $mImageLinks, $mCategoryLinks;
- /* private */ var $mPreFilled, $mOldGoodLinks, $mOldBadLinks;
+ /* private */ var $mGoodLinks, $mBadLinks;
/* private */ var $mForUpdate;
- /* private */ function getKey( $title ) {
- global $wgDBname;
- return $wgDBname.':lc:title:'.$title;
+ /**
+ * Get an instance of this class
+ */
+ static function &singleton() {
+ static $instance;
+ if ( !isset( $instance ) ) {
+ $instance = new LinkCache;
+ }
+ return $instance;
}
- function LinkCache() {
- $this->mActive = true;
- $this->mPreFilled = false;
+ function __construct() {
$this->mForUpdate = false;
$this->mPageLinks = array();
$this->mGoodLinks = array();
$this->mBadLinks = array();
- $this->mImageLinks = array();
- $this->mCategoryLinks = array();
- $this->mOldGoodLinks = array();
- $this->mOldBadLinks = array();
- $this->mOldPageLinks = array();
+ }
+
+ /* private */ function getKey( $title ) {
+ return wfMemcKey( 'lc', 'title', $title );
}
/**
}
function addGoodLinkObj( $id, $title ) {
- if ( $this->mActive ) {
- $dbkey = $title->getPrefixedDbKey();
- $this->mGoodLinks[$dbkey] = $id;
- $this->mPageLinks[$dbkey] = $title;
- }
+ $dbkey = $title->getPrefixedDbKey();
+ $this->mGoodLinks[$dbkey] = $id;
+ $this->mPageLinks[$dbkey] = $title;
}
function addBadLinkObj( $title ) {
$dbkey = $title->getPrefixedDbKey();
- if ( $this->mActive && ( ! $this->isBadLink( $dbkey ) ) ) {
+ if ( ! $this->isBadLink( $dbkey ) ) {
$this->mBadLinks[$dbkey] = 1;
$this->mPageLinks[$dbkey] = $title;
}
}
- function addImageLink( $title ) {
- if ( $this->mActive ) { $this->mImageLinks[$title] = 1; }
- }
-
- function addImageLinkObj( $nt ) {
- 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 ) {
unset( $this->mBadLinks[$title] );
$this->clearLink( $title );
$wgMemc->delete( $this->getKey( $title ) );
}
- /** @deprecated */
- function suspend() { $this->mActive = false; }
- /** @deprecated */
- function resume() { $this->mActive = true; }
-
function getPageLinks() { return $this->mPageLinks; }
function getGoodLinks() { return $this->mGoodLinks; }
function getBadLinks() { return array_keys( $this->mBadLinks ); }
- function getImageLinks() { return $this->mImageLinks; }
- function getCategoryLinks() { return $this->mCategoryLinks; }
/**
* Add a title to the link cache, return the page_id or zero if non-existent
- * @param string $title Title to add
+ * @param $title String: title to add
* @return integer
*/
function addLink( $title ) {
return 0;
}
}
-
+
/**
* Add a title to the link cache, return the page_id or zero if non-existent
- * @param Title $nt Title to add
+ * @param $nt Title to add.
* @return integer
*/
function addLinkObj( &$nt ) {
$id = $wgMemc->get( $key = $this->getKey( $title ) );
if( ! is_integer( $id ) ) {
if ( $this->mForUpdate ) {
- $db =& wfGetDB( DB_MASTER );
+ $db = wfGetDB( DB_MASTER );
if ( !( $wgAntiLockFlags & ALF_NO_LINK_LOCK ) ) {
$options = array( 'FOR UPDATE' );
} else {
$options = array();
}
} else {
- $db =& wfGetDB( DB_SLAVE );
+ $db = wfGetDB( DB_SLAVE );
$options = array();
}
return $id;
}
- /**
- * Bulk-check the pagelinks and page arrays for existence info.
- * @param Title $fromtitle
- * @deprecated
- */
- function preFill( &$fromtitle ) {
- global $wgAntiLockFlags;
- $fname = 'LinkCache::preFill';
- wfProfileIn( $fname );
-
- $this->suspend();
- $id = $fromtitle->getArticleID();
- $this->resume();
-
- if( $id == 0 ) {
- wfDebug( "$fname - got id 0 for title '" . $fromtitle->getPrefixedDBkey() . "'\n" );
- wfProfileOut( $fname );
- return;
- }
-
- if ( $this->mForUpdate ) {
- $db =& wfGetDB( DB_MASTER );
- if ( !( $wgAntiLockFlags & ALF_NO_LINK_LOCK ) ) {
- $options = 'FOR UPDATE';
- } else {
- $options = '';
- }
- } else {
- $db =& wfGetDB( DB_SLAVE );
- $options = '';
- }
-
- $page = $db->tableName( 'page' );
- $pagelinks = $db->tableName( 'pagelinks' );
-
- $sql = "SELECT page_id,pl_namespace,pl_title
- FROM $pagelinks
- LEFT JOIN $page
- ON pl_namespace=page_namespace AND pl_title=page_title
- WHERE pl_from=$id $options";
- $res = $db->query( $sql, $fname );
- while( $s = $db->fetchObject( $res ) ) {
- $title = Title::makeTitle( $s->pl_namespace, $s->pl_title );
- if( $s->page_id ) {
- $this->addGoodLinkObj( $s->page_id, $title );
- } else {
- $this->addBadLinkObj( $title );
- }
- }
- $this->mPreFilled = true;
-
- wfProfileOut( $fname );
- }
-
/**
* Clears cache
*/
$this->mPageLinks = array();
$this->mGoodLinks = array();
$this->mBadLinks = array();
- $this->mImageLinks = array();
- $this->mCategoryLinks = array();
- $this->mOldGoodLinks = array();
- $this->mOldBadLinks = array();
- $this->mOldPageLinks = array();
- }
-
- /**
- * Swaps old and current link registers
- * @deprecated
- */
- function swapRegisters() {
- swap( $this->mGoodLinks, $this->mOldGoodLinks );
- swap( $this->mBadLinks, $this->mOldBadLinks );
- swap( $this->mImageLinks, $this->mOldImageLinks );
- swap( $this->mPageLinks, $this->mOldPageLinks );
}
}
-?>
+
dépôts / lhc / web / wiklou.git / blobdiff