<?php
/**
- * See docs/deferred.txt
+ * Updater for link tracking tables after a page edit.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
+ * @file
+ */
+
+/**
+ * See docs/deferred.txt
+ *
* @todo document (e.g. one-sentence top-level class description).
*/
-class LinksUpdate {
+class LinksUpdate extends SqlDataUpdate {
- /**@{{
- * @private
- */
- var $mId, //!< Page ID of the article linked from
+ // @todo: make members protected, but make sure extensions don't break
+
+ public $mId, //!< Page ID of the article linked from
$mTitle, //!< Title object of the article linked from
+ $mParserOutput, //!< Parser output
$mLinks, //!< Map of title strings to IDs for the links in the document
$mImages, //!< DB keys of the images used, in the array key only
$mTemplates, //!< Map of title strings to IDs for the template references, including broken ones
$mDb, //!< Database connection reference
$mOptions, //!< SELECT options to be used (array)
$mRecursive; //!< Whether to queue jobs for recursive updates
- /**@}}*/
/**
* Constructor
* @param $recursive Boolean: queue jobs for recursive updates?
*/
function __construct( $title, $parserOutput, $recursive = true ) {
- global $wgAntiLockFlags;
+ parent::__construct( );
- if ( $wgAntiLockFlags & ALF_NO_LINK_LOCK ) {
- $this->mOptions = array();
- } else {
- $this->mOptions = array( 'FOR UPDATE' );
- }
- $this->mDb = wfGetDB( DB_MASTER );
-
- if ( !is_object( $title ) ) {
+ if ( !( $title instanceof Title ) ) {
throw new MWException( "The calling convention to LinksUpdate::LinksUpdate() has changed. " .
"Please see Article::editUpdates() for an invocation example.\n" );
}
+
+ if ( !( $parserOutput instanceof ParserOutput ) ) {
+ throw new MWException( "The calling convention to LinksUpdate::__construct() has changed. " .
+ "Please see WikiPage::doEditUpdates() for an invocation example.\n" );
+ }
+
$this->mTitle = $title;
$this->mId = $title->getArticleID();
+ if ( !$this->mId ) {
+ throw new MWException( "The Title object did not provide an article ID. Perhaps the page doesn't exist?" );
+ }
+
$this->mParserOutput = $parserOutput;
$this->mLinks = $parserOutput->getLinks();
$this->mImages = $parserOutput->getImages();
wfProfileOut( __METHOD__ );
}
- /**
- * Invalidate the cache of a list of pages from a single namespace
- *
- * @param $namespace Integer
- * @param $dbkeys Array
- */
- function invalidatePages( $namespace, $dbkeys ) {
- if ( !count( $dbkeys ) ) {
- return;
- }
-
- /**
- * Determine which pages need to be updated
- * This is necessary to prevent the job queue from smashing the DB with
- * large numbers of concurrent invalidations of the same page
- */
- $now = $this->mDb->timestamp();
- $ids = array();
- $res = $this->mDb->select( 'page', array( 'page_id' ),
- array(
- 'page_namespace' => $namespace,
- 'page_title IN (' . $this->mDb->makeList( $dbkeys ) . ')',
- 'page_touched < ' . $this->mDb->addQuotes( $now )
- ), __METHOD__
- );
- foreach ( $res as $row ) {
- $ids[] = $row->page_id;
- }
- if ( !count( $ids ) ) {
- return;
- }
-
- /**
- * Do the update
- * We still need the page_touched condition, in case the row has changed since
- * the non-locking select above.
- */
- $this->mDb->update( 'page', array( 'page_touched' => $now ),
- array(
- 'page_id IN (' . $this->mDb->makeList( $ids ) . ')',
- 'page_touched < ' . $this->mDb->addQuotes( $now )
- ), __METHOD__
- );
- }
-
/**
* @param $cats
*/
* @param $deleted array associative array of category name => sort key
*/
function updateCategoryCounts( $added, $deleted ) {
- $a = new Article($this->mTitle);
+ $a = WikiPage::factory( $this->mTitle );
$a->updateCategoryCounts(
array_keys( $added ), array_keys( $deleted )
);
$arr = array();
$diffs = array_diff_key( $this->mExternals, $existing );
foreach( $diffs as $url => $dummy ) {
- $arr[] = array(
- 'el_from' => $this->mId,
- 'el_to' => $url,
- 'el_index' => wfMakeUrlIndex( $url ),
- );
+ foreach( wfMakeUrlIndexes( $url ) as $index ) {
+ $arr[] = array(
+ 'el_from' => $this->mId,
+ 'el_to' => $url,
+ 'el_index' => $index,
+ );
+ }
}
return $arr;
}
return $this->mTitle;
}
+ /**
+ * Returns parser output
+ * @since 1.19
+ * @return ParserOutput
+ */
+ public function getParserOutput() {
+ return $this->mParserOutput;
+ }
+
/**
* Return the list of images used as generated by the parser
* @return array
}
}
}
+
+/**
+ * Update object handling the cleanup of links tables after a page was deleted.
+ **/
+class LinksDeletionUpdate extends SqlDataUpdate {
+
+ protected $mPage; //!< WikiPage the wikipage that was deleted
+
+ /**
+ * Constructor
+ *
+ * @param $title Title of the page we're updating
+ * @param $parserOutput ParserOutput: output from a full parse of this page
+ * @param $recursive Boolean: queue jobs for recursive updates?
+ */
+ function __construct( WikiPage $page ) {
+ parent::__construct( );
+
+ $this->mPage = $page;
+ }
+
+ /**
+ * Do some database updates after deletion
+ */
+ public function doUpdate() {
+ $title = $this->mPage->getTitle();
+ $id = $this->mPage->getId();
+
+ # Delete restrictions for it
+ $this->mDb->delete( 'page_restrictions', array ( 'pr_page' => $id ), __METHOD__ );
+
+ # Fix category table counts
+ $cats = array();
+ $res = $this->mDb->select( 'categorylinks', 'cl_to', array( 'cl_from' => $id ), __METHOD__ );
+
+ foreach ( $res as $row ) {
+ $cats [] = $row->cl_to;
+ }
+
+ $this->mPage->updateCategoryCounts( array(), $cats );
+
+ # If using cascading deletes, we can skip some explicit deletes
+ if ( !$this->mDb->cascadingDeletes() ) {
+ $this->mDb->delete( 'revision', array( 'rev_page' => $id ), __METHOD__ );
+
+ # Delete outgoing links
+ $this->mDb->delete( 'pagelinks', array( 'pl_from' => $id ), __METHOD__ );
+ $this->mDb->delete( 'imagelinks', array( 'il_from' => $id ), __METHOD__ );
+ $this->mDb->delete( 'categorylinks', array( 'cl_from' => $id ), __METHOD__ );
+ $this->mDb->delete( 'templatelinks', array( 'tl_from' => $id ), __METHOD__ );
+ $this->mDb->delete( 'externallinks', array( 'el_from' => $id ), __METHOD__ );
+ $this->mDb->delete( 'langlinks', array( 'll_from' => $id ), __METHOD__ );
+ $this->mDb->delete( 'iwlinks', array( 'iwl_from' => $id ), __METHOD__ );
+ $this->mDb->delete( 'redirect', array( 'rd_from' => $id ), __METHOD__ );
+ $this->mDb->delete( 'page_props', array( 'pp_page' => $id ), __METHOD__ );
+ }
+
+ # If using cleanup triggers, we can skip some manual deletes
+ if ( !$this->mDb->cleanupTriggers() ) {
+ # Clean up recentchanges entries...
+ $this->mDb->delete( 'recentchanges',
+ array( 'rc_type != ' . RC_LOG,
+ 'rc_namespace' => $title->getNamespace(),
+ 'rc_title' => $title->getDBkey() ),
+ __METHOD__ );
+ $this->mDb->delete( 'recentchanges',
+ array( 'rc_type != ' . RC_LOG, 'rc_cur_id' => $id ),
+ __METHOD__ );
+ }
+ }
+}
dépôts / lhc / web / wiklou.git / blobdiff