<?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;
-
- if ( $wgAntiLockFlags & ALF_NO_LINK_LOCK ) {
- $this->mOptions = array();
- } else {
- $this->mOptions = array( 'FOR UPDATE' );
- }
- $this->mDb = wfGetDB( DB_MASTER );
+ parent::__construct( );
- 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();
}
/**
- * Invalidate the cache of a list of pages from a single namespace
- *
- * @param $namespace Integer
- * @param $dbkeys Array
+ * @param $cats
*/
- 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__
- );
- }
-
function invalidateCategories( $cats ) {
$this->invalidatePages( NS_CATEGORY, array_keys( $cats ) );
}
/**
* Update all the appropriate counts in the category table.
- * @param $added associative array of category name => sort key
- * @param $deleted associative array of category name => sort key
+ * @param $added array associative array of category name => sort key
+ * @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 )
);
}
+ /**
+ * @param $images
+ */
function invalidateImageDescriptions( $images ) {
$this->invalidatePages( NS_FILE, array_keys( $images ) );
}
- function dumbTableUpdate( $table, $insertions, $fromField ) {
+ /**
+ * @param $table
+ * @param $insertions
+ * @param $fromField
+ */
+ private function dumbTableUpdate( $table, $insertions, $fromField ) {
$this->mDb->delete( $table, array( $fromField => $this->mId ), __METHOD__ );
if ( count( $insertions ) ) {
# The link array was constructed without FOR UPDATE, so there may
/**
* Update a table by doing a delete query then an insert query
- * @private
+ * @param $table
+ * @param $prefix
+ * @param $deletions
+ * @param $insertions
*/
function incrTableUpdate( $table, $prefix, $deletions, $insertions ) {
if ( $table == 'page_props' ) {
}
}
-
/**
* Get an array of pagelinks insertions for passing to the DB
* Skips the titles specified by the 2-D array $existing
- * @private
+ * @param $existing array
+ * @return array
*/
- function getLinkInsertions( $existing = array() ) {
+ private function getLinkInsertions( $existing = array() ) {
$arr = array();
foreach( $this->mLinks as $ns => $dbkeys ) {
$diffs = isset( $existing[$ns] )
/**
* Get an array of template insertions. Like getLinkInsertions()
- * @private
+ * @param $existing array
+ * @return array
*/
- function getTemplateInsertions( $existing = array() ) {
+ private function getTemplateInsertions( $existing = array() ) {
$arr = array();
foreach( $this->mTemplates as $ns => $dbkeys ) {
$diffs = isset( $existing[$ns] ) ? array_diff_key( $dbkeys, $existing[$ns] ) : $dbkeys;
/**
* Get an array of image insertions
* Skips the names specified in $existing
- * @private
+ * @param $existing array
+ * @return array
*/
- function getImageInsertions( $existing = array() ) {
+ private function getImageInsertions( $existing = array() ) {
$arr = array();
$diffs = array_diff_key( $this->mImages, $existing );
foreach( $diffs as $iname => $dummy ) {
/**
* Get an array of externallinks insertions. Skips the names specified in $existing
- * @private
+ * @param $existing array
+ * @return array
*/
- function getExternalInsertions( $existing = array() ) {
+ private function getExternalInsertions( $existing = array() ) {
$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;
}
/**
* Get an array of category insertions
*
- * @param $existing Array mapping existing category names to sort keys. If both
+ * @param $existing array mapping existing category names to sort keys. If both
* match a link in $this, the link will be omitted from the output
- * @private
+ *
+ * @return array
*/
- function getCategoryInsertions( $existing = array() ) {
+ private function getCategoryInsertions( $existing = array() ) {
global $wgContLang, $wgCategoryCollation;
$diffs = array_diff_assoc( $this->mCategories, $existing );
$arr = array();
* Get an array of interlanguage link insertions
*
* @param $existing Array mapping existing language codes to titles
- * @private
+ *
+ * @return array
*/
- function getInterlangInsertions( $existing = array() ) {
+ private function getInterlangInsertions( $existing = array() ) {
$diffs = array_diff_assoc( $this->mInterlangs, $existing );
$arr = array();
foreach( $diffs as $lang => $title ) {
/**
* Get an array of page property insertions
+ * @param $existing array
+ * @return array
*/
function getPropertyInsertions( $existing = array() ) {
$diffs = array_diff_assoc( $this->mProperties, $existing );
/**
* Get an array of interwiki insertions for passing to the DB
* Skips the titles specified by the 2-D array $existing
- * @private
+ * @param $existing array
+ * @return array
*/
- function getInterwikiInsertions( $existing = array() ) {
+ private function getInterwikiInsertions( $existing = array() ) {
$arr = array();
foreach( $this->mInterwikis as $prefix => $dbkeys ) {
$diffs = isset( $existing[$prefix] ) ? array_diff_key( $dbkeys, $existing[$prefix] ) : $dbkeys;
/**
* Given an array of existing links, returns those links which are not in $this
* and thus should be deleted.
- * @private
+ * @param $existing array
+ * @return array
*/
- function getLinkDeletions( $existing ) {
+ private function getLinkDeletions( $existing ) {
$del = array();
foreach ( $existing as $ns => $dbkeys ) {
if ( isset( $this->mLinks[$ns] ) ) {
/**
* Given an array of existing templates, returns those templates which are not in $this
* and thus should be deleted.
- * @private
+ * @param $existing array
+ * @return array
*/
- function getTemplateDeletions( $existing ) {
+ private function getTemplateDeletions( $existing ) {
$del = array();
foreach ( $existing as $ns => $dbkeys ) {
if ( isset( $this->mTemplates[$ns] ) ) {
/**
* Given an array of existing images, returns those images which are not in $this
* and thus should be deleted.
- * @private
+ * @param $existing array
+ * @return array
*/
- function getImageDeletions( $existing ) {
+ private function getImageDeletions( $existing ) {
return array_diff_key( $existing, $this->mImages );
}
/**
* Given an array of existing external links, returns those links which are not
* in $this and thus should be deleted.
- * @private
+ * @param $existing array
+ * @return array
*/
- function getExternalDeletions( $existing ) {
+ private function getExternalDeletions( $existing ) {
return array_diff_key( $existing, $this->mExternals );
}
/**
* Given an array of existing categories, returns those categories which are not in $this
* and thus should be deleted.
- * @private
+ * @param $existing array
+ * @return array
*/
- function getCategoryDeletions( $existing ) {
+ private function getCategoryDeletions( $existing ) {
return array_diff_assoc( $existing, $this->mCategories );
}
/**
* Given an array of existing interlanguage links, returns those links which are not
* in $this and thus should be deleted.
- * @private
+ * @param $existing array
+ * @return array
*/
- function getInterlangDeletions( $existing ) {
+ private function getInterlangDeletions( $existing ) {
return array_diff_assoc( $existing, $this->mInterlangs );
}
/**
* Get array of properties which should be deleted.
- * @private
+ * @param $existing array
+ * @return array
*/
function getPropertyDeletions( $existing ) {
return array_diff_assoc( $existing, $this->mProperties );
/**
* Given an array of existing interwiki links, returns those links which are not in $this
* and thus should be deleted.
- * @private
+ * @param $existing array
+ * @return array
*/
- function getInterwikiDeletions( $existing ) {
+ private function getInterwikiDeletions( $existing ) {
$del = array();
foreach ( $existing as $prefix => $dbkeys ) {
if ( isset( $this->mInterwikis[$prefix] ) ) {
/**
* Get an array of existing links, as a 2-D array
- * @private
+ *
+ * @return array
*/
- function getExistingLinks() {
+ private function getExistingLinks() {
$res = $this->mDb->select( 'pagelinks', array( 'pl_namespace', 'pl_title' ),
array( 'pl_from' => $this->mId ), __METHOD__, $this->mOptions );
$arr = array();
/**
* Get an array of existing templates, as a 2-D array
- * @private
+ *
+ * @return array
*/
- function getExistingTemplates() {
+ private function getExistingTemplates() {
$res = $this->mDb->select( 'templatelinks', array( 'tl_namespace', 'tl_title' ),
array( 'tl_from' => $this->mId ), __METHOD__, $this->mOptions );
$arr = array();
/**
* Get an array of existing images, image names in the keys
- * @private
+ *
+ * @return array
*/
- function getExistingImages() {
+ private function getExistingImages() {
$res = $this->mDb->select( 'imagelinks', array( 'il_to' ),
array( 'il_from' => $this->mId ), __METHOD__, $this->mOptions );
$arr = array();
/**
* Get an array of existing external links, URLs in the keys
- * @private
+ *
+ * @return array
*/
- function getExistingExternals() {
+ private function getExistingExternals() {
$res = $this->mDb->select( 'externallinks', array( 'el_to' ),
array( 'el_from' => $this->mId ), __METHOD__, $this->mOptions );
$arr = array();
/**
* Get an array of existing categories, with the name in the key and sort key in the value.
- * @private
+ *
+ * @return array
*/
- function getExistingCategories() {
+ private function getExistingCategories() {
$res = $this->mDb->select( 'categorylinks', array( 'cl_to', 'cl_sortkey_prefix' ),
array( 'cl_from' => $this->mId ), __METHOD__, $this->mOptions );
$arr = array();
/**
* Get an array of existing interlanguage links, with the language code in the key and the
* title in the value.
- * @private
+ *
+ * @return array
*/
- function getExistingInterlangs() {
+ private function getExistingInterlangs() {
$res = $this->mDb->select( 'langlinks', array( 'll_lang', 'll_title' ),
array( 'll_from' => $this->mId ), __METHOD__, $this->mOptions );
$arr = array();
/**
* Get an array of existing categories, with the name in the key and sort key in the value.
- * @private
+ *
+ * @return array
*/
- function getExistingProperties() {
+ private function getExistingProperties() {
$res = $this->mDb->select( 'page_props', array( 'pp_propname', 'pp_value' ),
array( 'pp_page' => $this->mId ), __METHOD__, $this->mOptions );
$arr = array();
return $arr;
}
-
/**
* Return the title object of the page being updated
+ * @return Title
*/
- function getTitle() {
+ public function getTitle() {
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
*/
public function getImages() {
return $this->mImages;
/**
* Invalidate any necessary link lists related to page property changes
+ * @param $changed
*/
- function invalidateProperties( $changed ) {
+ private function invalidateProperties( $changed ) {
global $wgPagePropLinkInvalidations;
foreach ( $changed as $name => $value ) {
}
}
}
+
+/**
+ * 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