<?php
/**
* Cache for article titles (prefixed DB keys) and ids linked from one source
- *
- * @addtogroup Cache
+ *
+ * @ingroup Cache
*/
class LinkCache {
// Increment $mClassVer whenever old serialized versions of this class
// becomes incompatible with the new version.
/* private */ var $mClassVer = 4;
- /* private */ var $mPageLinks;
/* private */ var $mGoodLinks, $mBadLinks;
/* private */ var $mForUpdate;
function __construct() {
$this->mForUpdate = false;
- $this->mPageLinks = array();
$this->mGoodLinks = array();
$this->mGoodLinkFields = array();
$this->mBadLinks = array();
/**
* General accessor to get/set whether SELECT FOR UPDATE should be used
*/
- public function forUpdate( $update = NULL ) {
+ public function forUpdate( $update = null ) {
return wfSetVar( $this->mForUpdate, $update );
}
return 0;
}
}
-
+
/**
- * Get a field of a title object from cache.
+ * Get a field of a title object from cache.
* If this link is not good, it will return NULL.
- * @param Title $title
- * @param string $field ('length','redirect')
+ * @param $title Title
+ * @param $field String: ('length','redirect','revision')
* @return mixed
*/
public function getGoodLinkFieldObj( $title, $field ) {
if ( array_key_exists( $dbkey, $this->mGoodLinkFields ) ) {
return $this->mGoodLinkFields[$dbkey][$field];
} else {
- return NULL;
+ return null;
}
}
/**
* Add a link for the title to the link cache
- * @param int $id
- * @param Title $title
- * @param int $len
- * @param int $redir
+ *
+ * @param $id Integer: page's ID
+ * @param $title Title object
+ * @param $len Integer: text's length
+ * @param $redir Integer: whether the page is a redirect
+ * @param $revision Integer: latest revision's ID
*/
- public function addGoodLinkObj( $id, $title, $len = -1, $redir = NULL ) {
+ public function addGoodLinkObj( $id, $title, $len = -1, $redir = null, $revision = false ) {
$dbkey = $title->getPrefixedDbKey();
- $this->mGoodLinks[$dbkey] = $id;
- $this->mGoodLinkFields[$dbkey] = array( 'length' => $len, 'redirect' => $redir );
- $this->mPageLinks[$dbkey] = $title;
+ $this->mGoodLinks[$dbkey] = intval( $id );
+ $this->mGoodLinkFields[$dbkey] = array(
+ 'length' => intval( $len ),
+ 'redirect' => intval( $redir ),
+ 'revision' => intval( $revision ) );
}
public function addBadLinkObj( $title ) {
$dbkey = $title->getPrefixedDbKey();
- if ( ! $this->isBadLink( $dbkey ) ) {
+ if ( !$this->isBadLink( $dbkey ) ) {
$this->mBadLinks[$dbkey] = 1;
- $this->mPageLinks[$dbkey] = $title;
}
}
public function clearBadLink( $title ) {
unset( $this->mBadLinks[$title] );
- $this->clearLink( $title );
}
- /* obsolete, for old $wgLinkCacheMemcached stuff */
- public function clearLink( $title ) {}
+ public function clearLink( $title ) {
+ $dbkey = $title->getPrefixedDbKey();
+ if( isset($this->mBadLinks[$dbkey]) ) {
+ unset($this->mBadLinks[$dbkey]);
+ }
+ if( isset($this->mGoodLinks[$dbkey]) ) {
+ unset($this->mGoodLinks[$dbkey]);
+ }
+ if( isset($this->mGoodLinkFields[$dbkey]) ) {
+ unset($this->mGoodLinkFields[$dbkey]);
+ }
+ }
- public function getPageLinks() { return $this->mPageLinks; }
public function getGoodLinks() { return $this->mGoodLinks; }
public function getBadLinks() { return array_keys( $this->mBadLinks ); }
/**
* Add a title to the link cache, return the page_id or zero if non-existent
+ *
* @param $title String: title to add
- * @param $len int, page size
- * @param $redir bool, is redirect?
- * @return integer
+ * @return Integer
*/
- public function addLink( $title, $len = -1, $redir = NULL ) {
+ public function addLink( $title ) {
$nt = Title::newFromDBkey( $title );
if( $nt ) {
- return $this->addLinkObj( $nt, $len, $redir );
+ return $this->addLinkObj( $nt );
} else {
return 0;
}
/**
* Add a title to the link cache, return the page_id or zero if non-existent
- * @param $nt Title to add.
- * @param $len int, page size
- * @param $redir bool, is redirect?
- * @return integer
+ *
+ * @param $nt Title object to add
+ * @return Integer
*/
- public function addLinkObj( &$nt, $len = -1, $redirect = NULL ) {
+ public function addLinkObj( $nt ) {
global $wgAntiLockFlags;
- $title = $nt->getPrefixedDBkey();
- if ( $this->isBadLink( $title ) ) { return 0; }
- $id = $this->getGoodLinkID( $title );
- if ( 0 != $id ) { return $id; }
-
- $fname = 'LinkCache::addLinkObj';
- global $wgProfiler;
- if ( isset( $wgProfiler ) ) {
- $fname .= ' (' . $wgProfiler->getCurrentSection() . ')';
- }
-
- wfProfileIn( $fname );
+ wfProfileIn( __METHOD__ );
- $ns = $nt->getNamespace();
- $t = $nt->getDBkey();
+ $key = $nt->getPrefixedDBkey();
+ if ( $this->isBadLink( $key ) || $nt->isExternal() ) {
+ wfProfileOut( __METHOD__ );
+ return 0;
+ }
+ $id = $this->getGoodLinkID( $key );
+ if ( $id != 0 ) {
+ wfProfileOut( __METHOD__ );
+ return $id;
+ }
- if ( '' == $title ) {
- wfProfileOut( $fname );
+ if ( $key === '' ) {
+ wfProfileOut( __METHOD__ );
return 0;
}
+
# Some fields heavily used for linking...
- $id = NULL;
-
- if( !is_integer( $id ) ) {
- if ( $this->mForUpdate ) {
- $db = wfGetDB( DB_MASTER );
- if ( !( $wgAntiLockFlags & ALF_NO_LINK_LOCK ) ) {
- $options = array( 'FOR UPDATE' );
- } else {
- $options = array();
- }
+ if ( $this->mForUpdate ) {
+ $db = wfGetDB( DB_MASTER );
+ if ( !( $wgAntiLockFlags & ALF_NO_LINK_LOCK ) ) {
+ $options = array( 'FOR UPDATE' );
} else {
- $db = wfGetDB( DB_SLAVE );
$options = array();
}
+ } else {
+ $db = wfGetDB( DB_SLAVE );
+ $options = array();
+ }
- $s = $db->selectRow( 'page',
- array( 'page_id', 'page_len', 'page_is_redirect' ),
- array( 'page_namespace' => $ns, 'page_title' => $t ),
- $fname, $options );
- # Set fields...
- $id = $s ? $s->page_id : 0;
- $len = $s ? $s->page_len : -1;
- $redirect = $s ? $s->page_is_redirect : 0;
+ $s = $db->selectRow( 'page',
+ array( 'page_id', 'page_len', 'page_is_redirect', 'page_latest' ),
+ array( 'page_namespace' => $nt->getNamespace(), 'page_title' => $nt->getDBkey() ),
+ __METHOD__, $options );
+ # Set fields...
+ if ( $s !== false ) {
+ $id = intval( $s->page_id );
+ $len = intval( $s->page_len );
+ $redirect = intval( $s->page_is_redirect );
+ $revision = intval( $s->page_latest );
+ } else {
+ $id = 0;
+ $len = -1;
+ $redirect = 0;
+ $revision = 0;
}
- if( 0 == $id ) {
+ if ( $id == 0 ) {
$this->addBadLinkObj( $nt );
} else {
- $this->addGoodLinkObj( $id, $nt, $len, $redirect );
+ $this->addGoodLinkObj( $id, $nt, $len, $redirect, $revision );
}
- wfProfileOut( $fname );
+ wfProfileOut( __METHOD__ );
return $id;
}
* Clears cache
*/
public function clear() {
- $this->mPageLinks = array();
$this->mGoodLinks = array();
$this->mGoodLinkFields = array();
$this->mBadLinks = array();
}
}
-
dépôts / lhc / web / wiklou.git / blobdiff