fix code for MW 1.40

IUTClass.php

@@ -1,4 +1,7 @@
 <?php
+use MediaWiki\MediaWikiServices;
+use MediaWiki\Logger\LoggerFactory;
+
 /**
  * Vote class - class for handling vote-related functions (counting
  * the average score of a given page, inserting/updating/removing a vote etc.)
@@ -31,17 +34,19 @@ class IUT {
 	 * @return int Amount of votes
 	 */
 	function count() {
-		global $wgMemc;
+    $cache = MediaWikiServices::getInstance()->getMainWANObjectCache();
+    $logger = LoggerFactory::getInstance( 'VoteNY' );
 
-		$key = wfMemcKey( 'iusethis', 'count', $this->PageID );
+		$key = 'iusethis_count_'.$this->PageID;
-		$data = $wgMemc->get( $key );
+		$data = $cache->get( $key );
 
 		// Try cache
 		if ( $data ) {
-			wfDebug( "Loading vote count for page {$this->PageID} from cache\n" );
+		  $logger->debug( "Loading vote count for page {$this->PageID} from cache\n" );
 			$vote_count = $data;
 		} else {
-			$dbr = wfGetDB( DB_SLAVE );
+      $lb = MediaWikiServices::getInstance()->getDBLoadBalancer();
+      $dbr = $lb->getConnection( DB_PRIMARY );
 			$vote_count = 0;
 			$res = $dbr->select(
 				'IUseThis',
@@ -49,11 +54,11 @@ class IUT {
 				array( 'vote_page_id' => $this->PageID ),
 				__METHOD__
 			);
-			$row = $dbr->fetchObject( $res );
+			$row = $res->fetchRow();
 			if ( $row ) {
 				$vote_count = $row->votecount;
 			}
-			$wgMemc->set( $key, $vote_count );
+			$cache->set( $key, $vote_count );
 		}
 
 		return $vote_count;
@@ -63,11 +68,12 @@ class IUT {
 	 * Clear caches - memcached, parser cache and Squid cache
 	 */
 	function clearCache() {
-		global $wgUser, $wgMemc;
+    $cache = MediaWikiServices::getInstance()->getMainWANObjectCache();
+		global $wgUser;
 
 		// Kill internal cache
-		$wgMemc->delete( wfMemcKey( 'iusethis', 'count', $this->PageID ) );
+		$cache->delete( 'iusethis_count_'.$this->PageID );
-		$wgMemc->delete( wfMemcKey( 'iusethis', 'avg', $this->PageID ) );
+		$cache->delete( 'iusethis_avg_'.$this->PageID );
 
 		// Purge squid
 		$pageTitle = Title::newFromID( $this->PageID );
@@ -79,7 +85,7 @@ class IUT {
 			$article = new Article( $pageTitle, /* oldid */0 );
 			$parserCache = ParserCache::singleton();
 			$parserKey = $parserCache->getKey( $article, $wgUser );
-			$wgMemc->delete( $parserKey );
+			$cache->delete( $parserKey );
 		}
 	}
 
@@ -87,7 +93,8 @@ class IUT {
 	 * Delete the user's vote from the database, purges normal caches.
 	 */
 	function delete() {
-		$dbw = wfGetDB( DB_MASTER );
+    $lb = MediaWikiServices::getInstance()->getDBLoadBalancer();
+    $dbw = $lb->getConnection( DB_PRIMARY );
 		$dbw->delete(
 			'IUseThis',
 			array(
@@ -105,7 +112,8 @@ class IUT {
 	 */
 	function insert() {
 		global $wgRequest;
-		$dbw = wfGetDB( DB_MASTER );
+    $lb = MediaWikiServices::getInstance()->getDBLoadBalancer();
+    $dbw = $lb->getConnection( DB_PRIMARY );
 		wfSuppressWarnings(); // E_STRICT whining
 		$voteDate = date( 'Y-m-d H:i:s' );
 		wfRestoreWarnings();
@@ -133,7 +141,8 @@ class IUT {
 	 *                  value of 'vote_value' column from Vote DB table
 	 */
 	function UserAlreadyVoted() {
-		$dbr = wfGetDB( DB_SLAVE );
+    $lb = MediaWikiServices::getInstance()->getDBLoadBalancer();
+    $dbr = $lb->getConnection( DB_PRIMARY );
 		$s = $dbr->selectRow(
 			'IUseThis',
 			'COUNT(*) as count',
@@ -167,6 +176,8 @@ class IUT {
 		$output = "<div id='iutbox' class=\"noprint iut-box{$make_vote_box_clickable}\">";
 	 	$output .= '<span id="iutcount" class="count">' . $this->count() . ' ' . wfMessage('people-count')->parse() . ' </span>';
 		$output .= '<span id="iutaction" class="iut-action">';
+    
+    $services = MediaWikiServices::getInstance();
 
 		if ( !$wgUser->isAllowed( 'iusethis' ) ) {
 			// @todo FIXME: this is horrible. If we don't have enough
@@ -177,7 +188,8 @@ class IUT {
 				htmlspecialchars( $login->getFullURL() ) . '" rel="nofollow">' .
 				wfMessage('iusethis-link')->parse() . '</a>';
 		} else {
-			if ( !wfReadOnly() ) {
+      $readonly = $services->getReadOnlyMode()->isReadOnly();
+			if ( $readonly ) {
 				if ( $voted === false ) {
 					$output .= '<a href="javascript:void(0);" class="iut-vote-link">' .
 						wfMessage('iusethis-link')->parse() . '</a>';

IUTHooks.php

@@ -1,4 +1,6 @@
 <?php
+use MediaWiki\MediaWikiServices;
+
 /**
  * All hooked functions used by IUseThis extension.
  *
@@ -32,7 +34,7 @@ class IUTHooks {
 		// Disable parser cache (sadly we have to do this, because the caching is
 		// messing stuff up; we want to show an up-to-date rating instead of old
 		// or totally wrong rating, i.e. another page's rating...)
-		$parser->disableCache();
+    $parser->getOutput()->updateCacheExpiry(0);
 
 		// Add CSS & JS
 		// In order for us to do this *here* instead of having to do this in