- function isBadLink( $title ) {
- return array_key_exists( $title, $this->mBadLinks );
- }
-
- function addGoodLinkObj( $id, $title ) {
- if ( $this->mActive ) {
- $dbkey = $title->getPrefixedDbKey();
- $this->mGoodLinks[$dbkey] = $id;
- $this->mPageLinks[$dbkey] = $title;
- }
- }
-
- function addBadLinkObj( $title ) {
- $dbkey = $title->getPrefixedDbKey();
- if ( $this->mActive && ( ! $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 );
- }
-
- function clearLink( $title ) {
- global $wgMemc, $wgLinkCacheMemcached;
- if( $wgLinkCacheMemcached )
- $wgMemc->delete( $this->getKey( $title ) );
- }
-
- function suspend() { $this->mActive = false; }
- 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; }
-
- function addLink( $title ) {
- $nt = Title::newFromDBkey( $title );
- if( $nt ) {
- return $this->addLinkObj( $nt );
- } else {
- return 0;
- }
- }
-
- function addLinkObj( &$nt ) {
- global $wgMemc, $wgLinkCacheMemcached;
- $title = $nt->getPrefixedDBkey();
- if ( $this->isBadLink( $title ) ) { return 0; }
- $id = $this->getGoodLinkID( $title );
- if ( 0 != $id ) { return $id; }
-
- $fname = 'LinkCache::addLinkObj';
- wfProfileIn( $fname );
-
- $ns = $nt->getNamespace();
- $t = $nt->getDBkey();
-
- if ( '' == $title ) {
- wfProfileOut( $fname );
- return 0;
- }
-
- $id = NULL;
- if( $wgLinkCacheMemcached )
- $id = $wgMemc->get( $key = $this->getKey( $title ) );
- if( ! is_integer( $id ) ) {
- if ( $this->mForUpdate ) {
- $db =& wfGetDB( DB_MASTER );
- $options = array( 'FOR UPDATE' );
- } else {
- $db =& wfGetDB( DB_SLAVE );
- $options = array();
- }
-
- $id = $db->selectField( 'page', 'page_id', array( 'page_namespace' => $ns, 'page_title' => $t ), $fname, $options );
- if ( !$id ) {
- $id = 0;
- }
- if( $wgLinkCacheMemcached )
- $wgMemc->add( $key, $id, 3600*24 );
- }
-
- if( 0 == $id ) {
- $this->addBadLinkObj( $nt );
- } else {
- $this->addGoodLinkObj( $id, $nt );
- }
- wfProfileOut( $fname );
- return $id;
- }
-