X-Git-Url: http://git.cyclocoop.org/?a=blobdiff_plain;f=includes%2FLinksUpdate.php;h=716e7d80722747599edbb83a0ed54b6af1e7e40d;hb=72b0e4cdfa6212d412e741b15c7633f8be7d40cc;hp=92856e9f42ce98384a6b93208cf143c70048b196;hpb=4f3efbf4065a98ea0a9b5d2bcbf8223207f12d7d;p=lhc%2Fweb%2Fwiklou.git diff --git a/includes/LinksUpdate.php b/includes/LinksUpdate.php index 92856e9f42..716e7d8072 100644 --- a/includes/LinksUpdate.php +++ b/includes/LinksUpdate.php @@ -2,6 +2,21 @@ /** * See docs/deferred.txt * + * 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 + * * @todo document (e.g. one-sentence top-level class description). */ class LinksUpdate { @@ -11,6 +26,7 @@ class LinksUpdate { */ var $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 @@ -26,11 +42,11 @@ class LinksUpdate { /** * Constructor * - * @param Title $title Title of the page we're updating - * @param ParserOutput $parserOutput Output from a full parse of this page - * @param bool $recursive Queue jobs for recursive updates? + * @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 LinksUpdate( $title, $parserOutput, $recursive = true ) { + function __construct( $title, $parserOutput, $recursive = true ) { global $wgAntiLockFlags; if ( $wgAntiLockFlags & ALF_NO_LINK_LOCK ) { @@ -41,8 +57,8 @@ class LinksUpdate { $this->mDb = wfGetDB( DB_MASTER ); if ( !is_object( $title ) ) { - throw new MWException( "The calling convention to LinksUpdate::LinksUpdate() has changed. " . - "Please see Article::editUpdates() for an invocation example.\n" ); + 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(); @@ -54,6 +70,7 @@ class LinksUpdate { $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 @@ -66,8 +83,18 @@ class LinksUpdate { $this->mInterlangs[$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; - $this->mTouchTmplLinks = false; wfRunHooks( 'LinksUpdateConstructed', array( &$this ) ); } @@ -99,7 +126,8 @@ class LinksUpdate { $existing = $this->getExistingImages(); $imageDeletes = $this->getImageDeletions( $existing ); - $this->incrTableUpdate( 'imagelinks', 'il', $imageDeletes, $this->getImageInsertions( $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 ); @@ -108,13 +136,18 @@ class LinksUpdate { # External links $existing = $this->getExistingExternals(); $this->incrTableUpdate( 'externallinks', 'el', $this->getExternalDeletions( $existing ), - $this->getExternalInsertions( $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 ), @@ -125,7 +158,8 @@ class LinksUpdate { $categoryDeletes = $this->getCategoryDeletions( $existing ); - $this->incrTableUpdate( 'categorylinks', 'cl', $categoryDeletes, $this->getCategoryInsertions( $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 ); @@ -138,7 +172,8 @@ class LinksUpdate { $propertiesDeletes = $this->getPropertyDeletions( $existing ); - $this->incrTableUpdate( 'page_props', 'pp', $propertiesDeletes, $this->getPropertyInsertions( $existing ) ); + $this->incrTableUpdate( 'page_props', 'pp', $propertiesDeletes, + $this->getPropertyInsertions( $existing ) ); # Invalidate the necessary pages $changed = $propertiesDeletes + array_diff_assoc( $this->mProperties, $existing ); @@ -175,6 +210,7 @@ class LinksUpdate { $this->dumbTableUpdate( 'templatelinks', $this->getTemplateInsertions(), 'tl_from' ); $this->dumbTableUpdate( 'externallinks', $this->getExternalInsertions(), 'el_from' ); $this->dumbTableUpdate( 'langlinks', $this->getInterlangInsertions(),'ll_from' ); + $this->dumbTableUpdate( 'iwlinks', $this->getInterwikiInsertions(),'iwl_from' ); $this->dumbTableUpdate( 'page_props', $this->getPropertyInsertions(), 'pp_page' ); # Update the cache of all the category pages and image description @@ -199,12 +235,14 @@ class LinksUpdate { $cache = $this->mTitle->getBacklinkCache(); $batches = $cache->partition( 'templatelinks', $wgUpdateRowsPerJob ); if ( !$batches ) { + wfProfileOut( __METHOD__ ); return; } $jobs = array(); foreach ( $batches as $batch ) { list( $start, $end ) = $batch; $params = array( + 'table' => 'templatelinks', 'start' => $start, 'end' => $end, ); @@ -218,8 +256,8 @@ class LinksUpdate { /** * Invalidate the cache of a list of pages from a single namespace * - * @param integer $namespace - * @param array $dbkeys + * @param $namespace Integer + * @param $dbkeys Array */ function invalidatePages( $namespace, $dbkeys ) { if ( !count( $dbkeys ) ) { @@ -240,7 +278,7 @@ class LinksUpdate { 'page_touched < ' . $this->mDb->addQuotes( $now ) ), __METHOD__ ); - while ( $row = $this->mDb->fetchObject( $res ) ) { + foreach ( $res as $row ) { $ids[] = $row->page_id; } if ( !count( $ids ) ) { @@ -260,27 +298,38 @@ class LinksUpdate { ); } + /** + * @param $cats + */ 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 @@ -290,21 +339,12 @@ class LinksUpdate { } } - /** - * Make a WHERE clause from a 2-d NS/dbkey array - * - * @param array $arr 2-d array indexed by namespace and DB key - * @param string $prefix Field name prefix, without the underscore - */ - function makeWhereFrom2d( &$arr, $prefix ) { - $lb = new LinkBatch; - $lb->setArray( $arr ); - return $lb->constructSet( $prefix, $this->mDb ); - } - /** * 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' ) { @@ -313,8 +353,13 @@ class LinksUpdate { $fromField = "{$prefix}_from"; } $where = array( $fromField => $this->mId ); - if ( $table == 'pagelinks' || $table == 'templatelinks' ) { - $clause = $this->makeWhereFrom2d( $deletions, $prefix ); + 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 { @@ -342,18 +387,18 @@ class LinksUpdate { } } - /** * 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 ) { - # array_diff_key() was introduced in PHP 5.1, there is a compatibility function - # in GlobalFunctions.php - $diffs = isset( $existing[$ns] ) ? array_diff_key( $dbkeys, $existing[$ns] ) : $dbkeys; + $diffs = isset( $existing[$ns] ) + ? array_diff_key( $dbkeys, $existing[$ns] ) + : $dbkeys; foreach ( $diffs as $dbk => $id ) { $arr[] = array( 'pl_from' => $this->mId, @@ -367,9 +412,10 @@ class LinksUpdate { /** * 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; @@ -387,9 +433,10 @@ class LinksUpdate { /** * 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 ) { @@ -403,47 +450,63 @@ class LinksUpdate { /** * 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 array $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() ) { - global $wgContLang; + private function getCategoryInsertions( $existing = array() ) { + global $wgContLang, $wgCategoryCollation; $diffs = array_diff_assoc( $this->mCategories, $existing ); $arr = array(); - foreach ( $diffs as $name => $sortkey ) { + foreach ( $diffs as $name => $prefix ) { $nt = Title::makeTitleSafe( NS_CATEGORY, $name ); $wgContLang->findVariantLink( $name, $nt, true ); - // for category redirection - if ( $nt->isRedirect() ) { - $at = new Article( $nt ); - $nt = $at->getRedirectTarget(); - // we only redirect a category to another category - if ( $nt->getNamespace() == NS_CATEGORY ) - $name = $nt->getText(); + + 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_timestamp' => $this->mDb->timestamp(), + 'cl_sortkey_prefix' => $prefix, + 'cl_collation' => $wgCategoryCollation, + 'cl_type' => $type, ); } return $arr; @@ -451,24 +514,28 @@ class LinksUpdate { /** * Get an array of interlanguage link insertions - * @param array $existing Array mapping existing language codes to titles - * @private + * + * @param $existing Array mapping existing language codes to titles + * + * @return array */ - 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; + 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 ); @@ -483,13 +550,34 @@ class LinksUpdate { 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. - * @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] ) ) { @@ -504,9 +592,10 @@ class LinksUpdate { /** * 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] ) ) { @@ -521,170 +610,229 @@ class LinksUpdate { /** * 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 ) { - return array_diff_assoc( $existing, $this->mInterlangs ); + 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. + * @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 - * @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(); - while ( $row = $this->mDb->fetchObject( $res ) ) { + foreach ( $res as $row ) { if ( !isset( $arr[$row->pl_namespace] ) ) { $arr[$row->pl_namespace] = array(); } $arr[$row->pl_namespace][$row->pl_title] = 1; } - $this->mDb->freeResult( $res ); return $arr; } /** * 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(); - while ( $row = $this->mDb->fetchObject( $res ) ) { + foreach ( $res as $row ) { if ( !isset( $arr[$row->tl_namespace] ) ) { $arr[$row->tl_namespace] = array(); } $arr[$row->tl_namespace][$row->tl_title] = 1; } - $this->mDb->freeResult( $res ); return $arr; } /** * 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(); - while ( $row = $this->mDb->fetchObject( $res ) ) { + foreach ( $res as $row ) { $arr[$row->il_to] = 1; } - $this->mDb->freeResult( $res ); return $arr; } /** * 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(); - while ( $row = $this->mDb->fetchObject( $res ) ) { + foreach ( $res as $row ) { $arr[$row->el_to] = 1; } - $this->mDb->freeResult( $res ); return $arr; } /** * Get an array of existing categories, with the name in the key and sort key in the value. - * @private + * + * @return array */ - function getExistingCategories() { - $res = $this->mDb->select( 'categorylinks', array( 'cl_to', 'cl_sortkey' ), + private function getExistingCategories() { + $res = $this->mDb->select( 'categorylinks', array( 'cl_to', 'cl_sortkey_prefix' ), array( 'cl_from' => $this->mId ), __METHOD__, $this->mOptions ); $arr = array(); - while ( $row = $this->mDb->fetchObject( $res ) ) { - $arr[$row->cl_to] = $row->cl_sortkey; + foreach ( $res as $row ) { + $arr[$row->cl_to] = $row->cl_sortkey_prefix; } - $this->mDb->freeResult( $res ); return $arr; } /** * 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(); - while ( $row = $this->mDb->fetchObject( $res ) ) { + 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. - * @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(); - while ( $row = $this->mDb->fetchObject( $res ) ) { + foreach ( $res as $row ) { $arr[$row->pp_propname] = $row->pp_value; } - $this->mDb->freeResult( $res ); 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 ) {