Migrate to IDatabase::newInsertQueryBuilder for upsert

Change-Id: I532b206b6c1d652369d4f986d0f5b91958a1ef47

includes/UnreadWikis.php

@@ -140,13 +140,14 @@ class UnreadWikis {
 			];
 
 			// when there is unread alert(s) and/or message(s), upsert the row
-			$dbw->upsert(
-				'echo_unread_wikis',
-				$conditions + $values,
-				[ [ 'euw_user', 'euw_wiki' ] ],
-				$values,
-				__METHOD__
-			);
+			$dbw->newInsertQueryBuilder()
+				->insertInto( 'echo_unread_wikis' )
+				->row( $conditions + $values )
+				->onDuplicateKeyUpdate()
+				->uniqueIndexFields( [ 'euw_user', 'euw_wiki' ] )
+				->set( $values )
+				->caller( __METHOD__ )
+				->execute();
 		} else {
 			// No unread notifications, delete the row
 			$dbw->delete(