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authorPierre Schmitz <pierre@archlinux.de>2014-12-27 15:41:37 +0100
committerPierre Schmitz <pierre@archlinux.de>2014-12-31 11:43:28 +0100
commitc1f9b1f7b1b77776192048005dcc66dcf3df2bfb (patch)
tree2b38796e738dd74cb42ecd9bfd151803108386bc /includes/LinksUpdate.php
parentb88ab0086858470dd1f644e64cb4e4f62bb2be9b (diff)
Update to MediaWiki 1.24.1
Diffstat (limited to 'includes/LinksUpdate.php')
-rw-r--r--includes/LinksUpdate.php893
1 files changed, 0 insertions, 893 deletions
diff --git a/includes/LinksUpdate.php b/includes/LinksUpdate.php
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index ed52eb9c..00000000
--- a/includes/LinksUpdate.php
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@@ -1,893 +0,0 @@
-<?php
-/**
- * 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
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 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 extends SqlDataUpdate {
-
- // @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
- $mExternals, //!< URLs of external links, array key only
- $mCategories, //!< Map of category names to sort keys
- $mInterlangs, //!< Map of language codes to titles
- $mProperties, //!< Map of arbitrary name to value
- $mDb, //!< Database connection reference
- $mOptions, //!< SELECT options to be used (array)
- $mRecursive; //!< Whether to queue jobs for recursive updates
-
- /**
- * @var null|array Added links if calculated.
- */
- private $linkInsertions = null;
-
- /**
- * @var null|array Deleted links if calculated.
- */
- private $linkDeletions = null;
-
- /**
- * 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?
- * @throws MWException
- */
- function __construct( $title, $parserOutput, $recursive = true ) {
- parent::__construct( false ); // no implicit transaction
-
- 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();
- $this->mTemplates = $parserOutput->getTemplates();
- $this->mExternals = $parserOutput->getExternalLinks();
- $this->mCategories = $parserOutput->getCategories();
- $this->mProperties = $parserOutput->getProperties();
- $this->mInterwikis = $parserOutput->getInterwikiLinks();
-
- # Convert the format of the interlanguage links
- # I didn't want to change it in the ParserOutput, because that array is passed all
- # the way back to the skin, so either a skin API break would be required, or an
- # inefficient back-conversion.
- $ill = $parserOutput->getLanguageLinks();
- $this->mInterlangs = array();
- foreach ( $ill as $link ) {
- list( $key, $title ) = explode( ':', $link, 2 );
- $this->mInterlangs[$key] = $title;
- }
-
- foreach ( $this->mCategories as &$sortkey ) {
- # If the sortkey is longer then 255 bytes,
- # it truncated by DB, and then doesn't get
- # matched when comparing existing vs current
- # categories, causing bug 25254.
- # Also. substr behaves weird when given "".
- if ( $sortkey !== '' ) {
- $sortkey = substr( $sortkey, 0, 255 );
- }
- }
-
- $this->mRecursive = $recursive;
-
- wfRunHooks( 'LinksUpdateConstructed', array( &$this ) );
- }
-
- /**
- * Update link tables with outgoing links from an updated article
- */
- public function doUpdate() {
- wfRunHooks( 'LinksUpdate', array( &$this ) );
- $this->doIncrementalUpdate();
- wfRunHooks( 'LinksUpdateComplete', array( &$this ) );
- }
-
- protected function doIncrementalUpdate() {
- wfProfileIn( __METHOD__ );
-
- # Page links
- $existing = $this->getExistingLinks();
- $this->linkDeletions = $this->getLinkDeletions( $existing );
- $this->linkInsertions = $this->getLinkInsertions( $existing );
- $this->incrTableUpdate( 'pagelinks', 'pl', $this->linkDeletions, $this->linkInsertions );
-
- # Image links
- $existing = $this->getExistingImages();
-
- $imageDeletes = $this->getImageDeletions( $existing );
- $this->incrTableUpdate( 'imagelinks', 'il', $imageDeletes,
- $this->getImageInsertions( $existing ) );
-
- # Invalidate all image description pages which had links added or removed
- $imageUpdates = $imageDeletes + array_diff_key( $this->mImages, $existing );
- $this->invalidateImageDescriptions( $imageUpdates );
-
- # External links
- $existing = $this->getExistingExternals();
- $this->incrTableUpdate( 'externallinks', 'el', $this->getExternalDeletions( $existing ),
- $this->getExternalInsertions( $existing ) );
-
- # Language links
- $existing = $this->getExistingInterlangs();
- $this->incrTableUpdate( 'langlinks', 'll', $this->getInterlangDeletions( $existing ),
- $this->getInterlangInsertions( $existing ) );
-
- # Inline interwiki links
- $existing = $this->getExistingInterwikis();
- $this->incrTableUpdate( 'iwlinks', 'iwl', $this->getInterwikiDeletions( $existing ),
- $this->getInterwikiInsertions( $existing ) );
-
- # Template links
- $existing = $this->getExistingTemplates();
- $this->incrTableUpdate( 'templatelinks', 'tl', $this->getTemplateDeletions( $existing ),
- $this->getTemplateInsertions( $existing ) );
-
- # Category links
- $existing = $this->getExistingCategories();
-
- $categoryDeletes = $this->getCategoryDeletions( $existing );
-
- $this->incrTableUpdate( 'categorylinks', 'cl', $categoryDeletes,
- $this->getCategoryInsertions( $existing ) );
-
- # Invalidate all categories which were added, deleted or changed (set symmetric difference)
- $categoryInserts = array_diff_assoc( $this->mCategories, $existing );
- $categoryUpdates = $categoryInserts + $categoryDeletes;
- $this->invalidateCategories( $categoryUpdates );
- $this->updateCategoryCounts( $categoryInserts, $categoryDeletes );
-
- # Page properties
- $existing = $this->getExistingProperties();
-
- $propertiesDeletes = $this->getPropertyDeletions( $existing );
-
- $this->incrTableUpdate( 'page_props', 'pp', $propertiesDeletes,
- $this->getPropertyInsertions( $existing ) );
-
- # Invalidate the necessary pages
- $changed = $propertiesDeletes + array_diff_assoc( $this->mProperties, $existing );
- $this->invalidateProperties( $changed );
-
- # Refresh links of all pages including this page
- # This will be in a separate transaction
- if ( $this->mRecursive ) {
- $this->queueRecursiveJobs();
- }
-
- wfProfileOut( __METHOD__ );
- }
-
- /**
- * Queue recursive jobs for this page
- *
- * Which means do LinksUpdate on all templates
- * that include the current page, using the job queue.
- */
- function queueRecursiveJobs() {
- self::queueRecursiveJobsForTable( $this->mTitle, 'templatelinks' );
- }
-
- /**
- * Queue a RefreshLinks job for any table.
- *
- * @param Title $title Title to do job for
- * @param String $table Table to use (e.g. 'templatelinks')
- */
- public static function queueRecursiveJobsForTable( Title $title, $table ) {
- wfProfileIn( __METHOD__ );
- if ( $title->getBacklinkCache()->hasLinks( $table ) ) {
- $job = new RefreshLinksJob2(
- $title,
- array(
- 'table' => $table,
- ) + Job::newRootJobParams( // "overall" refresh links job info
- "refreshlinks:{$table}:{$title->getPrefixedText()}"
- )
- );
- JobQueueGroup::singleton()->push( $job );
- JobQueueGroup::singleton()->deduplicateRootJob( $job );
- }
- wfProfileOut( __METHOD__ );
- }
-
- /**
- * @param $cats
- */
- function invalidateCategories( $cats ) {
- $this->invalidatePages( NS_CATEGORY, array_keys( $cats ) );
- }
-
- /**
- * Update all the appropriate counts in the category table.
- * @param array $added associative array of category name => sort key
- * @param array $deleted associative array of category name => sort key
- */
- function updateCategoryCounts( $added, $deleted ) {
- $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 ) );
- }
-
- /**
- * Update a table by doing a delete query then an insert query
- * @param $table
- * @param $prefix
- * @param $deletions
- * @param $insertions
- */
- function incrTableUpdate( $table, $prefix, $deletions, $insertions ) {
- if ( $table == 'page_props' ) {
- $fromField = 'pp_page';
- } else {
- $fromField = "{$prefix}_from";
- }
- $where = array( $fromField => $this->mId );
- if ( $table == 'pagelinks' || $table == 'templatelinks' || $table == 'iwlinks' ) {
- if ( $table == 'iwlinks' ) {
- $baseKey = 'iwl_prefix';
- } else {
- $baseKey = "{$prefix}_namespace";
- }
- $clause = $this->mDb->makeWhereFrom2d( $deletions, $baseKey, "{$prefix}_title" );
- if ( $clause ) {
- $where[] = $clause;
- } else {
- $where = false;
- }
- } else {
- if ( $table == 'langlinks' ) {
- $toField = 'll_lang';
- } elseif ( $table == 'page_props' ) {
- $toField = 'pp_propname';
- } else {
- $toField = $prefix . '_to';
- }
- if ( count( $deletions ) ) {
- $where[] = "$toField IN (" . $this->mDb->makeList( array_keys( $deletions ) ) . ')';
- } else {
- $where = false;
- }
- }
- if ( $where ) {
- $this->mDb->delete( $table, $where, __METHOD__ );
- }
- if ( count( $insertions ) ) {
- $this->mDb->insert( $table, $insertions, __METHOD__, 'IGNORE' );
- wfRunHooks( 'LinksUpdateAfterInsert', array( $this, $table, $insertions ) );
- }
- }
-
- /**
- * Get an array of pagelinks insertions for passing to the DB
- * Skips the titles specified by the 2-D array $existing
- * @param $existing array
- * @return array
- */
- private function getLinkInsertions( $existing = array() ) {
- $arr = array();
- foreach ( $this->mLinks as $ns => $dbkeys ) {
- $diffs = isset( $existing[$ns] )
- ? array_diff_key( $dbkeys, $existing[$ns] )
- : $dbkeys;
- foreach ( $diffs as $dbk => $id ) {
- $arr[] = array(
- 'pl_from' => $this->mId,
- 'pl_namespace' => $ns,
- 'pl_title' => $dbk
- );
- }
- }
- return $arr;
- }
-
- /**
- * Get an array of template insertions. Like getLinkInsertions()
- * @param $existing array
- * @return 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;
- foreach ( $diffs as $dbk => $id ) {
- $arr[] = array(
- 'tl_from' => $this->mId,
- 'tl_namespace' => $ns,
- 'tl_title' => $dbk
- );
- }
- }
- return $arr;
- }
-
- /**
- * Get an array of image insertions
- * Skips the names specified in $existing
- * @param $existing array
- * @return array
- */
- private function getImageInsertions( $existing = array() ) {
- $arr = array();
- $diffs = array_diff_key( $this->mImages, $existing );
- foreach ( $diffs as $iname => $dummy ) {
- $arr[] = array(
- 'il_from' => $this->mId,
- 'il_to' => $iname
- );
- }
- return $arr;
- }
-
- /**
- * Get an array of externallinks insertions. Skips the names specified in $existing
- * @param $existing array
- * @return array
- */
- private function getExternalInsertions( $existing = array() ) {
- $arr = array();
- $diffs = array_diff_key( $this->mExternals, $existing );
- foreach ( $diffs as $url => $dummy ) {
- foreach ( wfMakeUrlIndexes( $url ) as $index ) {
- $arr[] = array(
- 'el_id' => $this->mDb->nextSequenceValue( 'externallinks_el_id_seq' ),
- 'el_from' => $this->mId,
- 'el_to' => $url,
- 'el_index' => $index,
- );
- }
- }
- return $arr;
- }
-
- /**
- * Get an array of category insertions
- *
- * @param array $existing mapping existing category names to sort keys. If both
- * match a link in $this, the link will be omitted from the output
- *
- * @return array
- */
- private function getCategoryInsertions( $existing = array() ) {
- global $wgContLang, $wgCategoryCollation;
- $diffs = array_diff_assoc( $this->mCategories, $existing );
- $arr = array();
- foreach ( $diffs as $name => $prefix ) {
- $nt = Title::makeTitleSafe( NS_CATEGORY, $name );
- $wgContLang->findVariantLink( $name, $nt, true );
-
- if ( $this->mTitle->getNamespace() == NS_CATEGORY ) {
- $type = 'subcat';
- } elseif ( $this->mTitle->getNamespace() == NS_FILE ) {
- $type = 'file';
- } else {
- $type = 'page';
- }
-
- # Treat custom sortkeys as a prefix, so that if multiple
- # things are forced to sort as '*' or something, they'll
- # sort properly in the category rather than in page_id
- # order or such.
- $sortkey = Collation::singleton()->getSortKey(
- $this->mTitle->getCategorySortkey( $prefix ) );
-
- $arr[] = array(
- 'cl_from' => $this->mId,
- 'cl_to' => $name,
- 'cl_sortkey' => $sortkey,
- 'cl_timestamp' => $this->mDb->timestamp(),
- 'cl_sortkey_prefix' => $prefix,
- 'cl_collation' => $wgCategoryCollation,
- 'cl_type' => $type,
- );
- }
- return $arr;
- }
-
- /**
- * Get an array of interlanguage link insertions
- *
- * @param array $existing mapping existing language codes to titles
- *
- * @return array
- */
- private function getInterlangInsertions( $existing = array() ) {
- $diffs = array_diff_assoc( $this->mInterlangs, $existing );
- $arr = array();
- foreach ( $diffs as $lang => $title ) {
- $arr[] = array(
- 'll_from' => $this->mId,
- 'll_lang' => $lang,
- 'll_title' => $title
- );
- }
- return $arr;
- }
-
- /**
- * Get an array of page property insertions
- * @param $existing array
- * @return array
- */
- function getPropertyInsertions( $existing = array() ) {
- $diffs = array_diff_assoc( $this->mProperties, $existing );
- $arr = array();
- foreach ( $diffs as $name => $value ) {
- $arr[] = array(
- 'pp_page' => $this->mId,
- 'pp_propname' => $name,
- 'pp_value' => $value,
- );
- }
- return $arr;
- }
-
- /**
- * Get an array of interwiki insertions for passing to the DB
- * Skips the titles specified by the 2-D array $existing
- * @param $existing array
- * @return 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;
- foreach ( $diffs as $dbk => $id ) {
- $arr[] = array(
- 'iwl_from' => $this->mId,
- 'iwl_prefix' => $prefix,
- 'iwl_title' => $dbk
- );
- }
- }
- return $arr;
- }
-
- /**
- * Given an array of existing links, returns those links which are not in $this
- * and thus should be deleted.
- * @param $existing array
- * @return array
- */
- private function getLinkDeletions( $existing ) {
- $del = array();
- foreach ( $existing as $ns => $dbkeys ) {
- if ( isset( $this->mLinks[$ns] ) ) {
- $del[$ns] = array_diff_key( $existing[$ns], $this->mLinks[$ns] );
- } else {
- $del[$ns] = $existing[$ns];
- }
- }
- return $del;
- }
-
- /**
- * Given an array of existing templates, returns those templates which are not in $this
- * and thus should be deleted.
- * @param $existing array
- * @return array
- */
- private function getTemplateDeletions( $existing ) {
- $del = array();
- foreach ( $existing as $ns => $dbkeys ) {
- if ( isset( $this->mTemplates[$ns] ) ) {
- $del[$ns] = array_diff_key( $existing[$ns], $this->mTemplates[$ns] );
- } else {
- $del[$ns] = $existing[$ns];
- }
- }
- return $del;
- }
-
- /**
- * Given an array of existing images, returns those images which are not in $this
- * and thus should be deleted.
- * @param $existing array
- * @return array
- */
- 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.
- * @param $existing array
- * @return array
- */
- 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.
- * @param $existing array
- * @return array
- */
- 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.
- * @param $existing array
- * @return array
- */
- private function getInterlangDeletions( $existing ) {
- return array_diff_assoc( $existing, $this->mInterlangs );
- }
-
- /**
- * Get array of properties which should be deleted.
- * @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.
- * @param $existing array
- * @return array
- */
- private function getInterwikiDeletions( $existing ) {
- $del = array();
- foreach ( $existing as $prefix => $dbkeys ) {
- if ( isset( $this->mInterwikis[$prefix] ) ) {
- $del[$prefix] = array_diff_key( $existing[$prefix], $this->mInterwikis[$prefix] );
- } else {
- $del[$prefix] = $existing[$prefix];
- }
- }
- return $del;
- }
-
- /**
- * Get an array of existing links, as a 2-D array
- *
- * @return array
- */
- private function getExistingLinks() {
- $res = $this->mDb->select( 'pagelinks', array( 'pl_namespace', 'pl_title' ),
- array( 'pl_from' => $this->mId ), __METHOD__, $this->mOptions );
- $arr = array();
- foreach ( $res as $row ) {
- if ( !isset( $arr[$row->pl_namespace] ) ) {
- $arr[$row->pl_namespace] = array();
- }
- $arr[$row->pl_namespace][$row->pl_title] = 1;
- }
- return $arr;
- }
-
- /**
- * Get an array of existing templates, as a 2-D array
- *
- * @return array
- */
- private function getExistingTemplates() {
- $res = $this->mDb->select( 'templatelinks', array( 'tl_namespace', 'tl_title' ),
- array( 'tl_from' => $this->mId ), __METHOD__, $this->mOptions );
- $arr = array();
- foreach ( $res as $row ) {
- if ( !isset( $arr[$row->tl_namespace] ) ) {
- $arr[$row->tl_namespace] = array();
- }
- $arr[$row->tl_namespace][$row->tl_title] = 1;
- }
- return $arr;
- }
-
- /**
- * Get an array of existing images, image names in the keys
- *
- * @return array
- */
- private function getExistingImages() {
- $res = $this->mDb->select( 'imagelinks', array( 'il_to' ),
- array( 'il_from' => $this->mId ), __METHOD__, $this->mOptions );
- $arr = array();
- foreach ( $res as $row ) {
- $arr[$row->il_to] = 1;
- }
- return $arr;
- }
-
- /**
- * Get an array of existing external links, URLs in the keys
- *
- * @return array
- */
- private function getExistingExternals() {
- $res = $this->mDb->select( 'externallinks', array( 'el_to' ),
- array( 'el_from' => $this->mId ), __METHOD__, $this->mOptions );
- $arr = array();
- foreach ( $res as $row ) {
- $arr[$row->el_to] = 1;
- }
- return $arr;
- }
-
- /**
- * Get an array of existing categories, with the name in the key and sort key in the value.
- *
- * @return array
- */
- private function getExistingCategories() {
- $res = $this->mDb->select( 'categorylinks', array( 'cl_to', 'cl_sortkey_prefix' ),
- array( 'cl_from' => $this->mId ), __METHOD__, $this->mOptions );
- $arr = array();
- foreach ( $res as $row ) {
- $arr[$row->cl_to] = $row->cl_sortkey_prefix;
- }
- return $arr;
- }
-
- /**
- * Get an array of existing interlanguage links, with the language code in the key and the
- * title in the value.
- *
- * @return array
- */
- private function getExistingInterlangs() {
- $res = $this->mDb->select( 'langlinks', array( 'll_lang', 'll_title' ),
- array( 'll_from' => $this->mId ), __METHOD__, $this->mOptions );
- $arr = array();
- foreach ( $res as $row ) {
- $arr[$row->ll_lang] = $row->ll_title;
- }
- return $arr;
- }
-
- /**
- * Get an array of existing inline interwiki links, as a 2-D array
- * @return array (prefix => array(dbkey => 1))
- */
- protected function getExistingInterwikis() {
- $res = $this->mDb->select( 'iwlinks', array( 'iwl_prefix', 'iwl_title' ),
- array( 'iwl_from' => $this->mId ), __METHOD__, $this->mOptions );
- $arr = array();
- foreach ( $res as $row ) {
- if ( !isset( $arr[$row->iwl_prefix] ) ) {
- $arr[$row->iwl_prefix] = array();
- }
- $arr[$row->iwl_prefix][$row->iwl_title] = 1;
- }
- return $arr;
- }
-
- /**
- * Get an array of existing categories, with the name in the key and sort key in the value.
- *
- * @return array
- */
- private function getExistingProperties() {
- $res = $this->mDb->select( 'page_props', array( 'pp_propname', 'pp_value' ),
- array( 'pp_page' => $this->mId ), __METHOD__, $this->mOptions );
- $arr = array();
- foreach ( $res as $row ) {
- $arr[$row->pp_propname] = $row->pp_value;
- }
- return $arr;
- }
-
- /**
- * Return the title object of the page being updated
- * @return Title
- */
- 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
- */
- private function invalidateProperties( $changed ) {
- global $wgPagePropLinkInvalidations;
-
- foreach ( $changed as $name => $value ) {
- if ( isset( $wgPagePropLinkInvalidations[$name] ) ) {
- $inv = $wgPagePropLinkInvalidations[$name];
- if ( !is_array( $inv ) ) {
- $inv = array( $inv );
- }
- foreach ( $inv as $table ) {
- $update = new HTMLCacheUpdate( $this->mTitle, $table );
- $update->doUpdate();
- }
- }
- }
- }
-
- /**
- * Fetch page links added by this LinksUpdate. Only available after the update is complete.
- * @since 1.22
- * @return null|array of Titles
- */
- public function getAddedLinks() {
- if ( $this->linkInsertions === null ) {
- return null;
- }
- $result = array();
- foreach ( $this->linkInsertions as $insertion ) {
- $result[] = Title::makeTitle( $insertion[ 'pl_namespace' ], $insertion[ 'pl_title' ] );
- }
- return $result;
- }
-
- /**
- * Fetch page links removed by this LinksUpdate. Only available after the update is complete.
- * @since 1.22
- * @return null|array of Titles
- */
- public function getRemovedLinks() {
- if ( $this->linkDeletions === null ) {
- return null;
- }
- $result = array();
- foreach ( $this->linkDeletions as $ns => $titles ) {
- foreach ( $titles as $title => $unused ) {
- $result[] = Title::makeTitle( $ns, $title );
- }
- }
- return $result;
- }
-}
-
-/**
- * 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 $page WikiPage Page we are updating
- * @throws MWException
- */
- function __construct( WikiPage $page ) {
- parent::__construct( false ); // no implicit transaction
-
- $this->mPage = $page;
-
- if ( !$page->exists() ) {
- throw new MWException( "Page ID not known, perhaps the page doesn't exist?" );
- }
- }
-
- /**
- * 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() ) {
- # 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__ );
- }
- }
-
- /**
- * Update all the appropriate counts in the category table.
- * @param array $added associative array of category name => sort key
- * @param array $deleted associative array of category name => sort key
- */
- function updateCategoryCounts( $added, $deleted ) {
- $a = WikiPage::factory( $this->mTitle );
- $a->updateCategoryCounts(
- array_keys( $added ), array_keys( $deleted )
- );
- }
-}