diff options
author | Pierre Schmitz <pierre@archlinux.de> | 2014-12-27 15:41:37 +0100 |
---|---|---|
committer | Pierre Schmitz <pierre@archlinux.de> | 2014-12-31 11:43:28 +0100 |
commit | c1f9b1f7b1b77776192048005dcc66dcf3df2bfb (patch) | |
tree | 2b38796e738dd74cb42ecd9bfd151803108386bc /includes/DataUpdate.php | |
parent | b88ab0086858470dd1f644e64cb4e4f62bb2be9b (diff) |
Update to MediaWiki 1.24.1
Diffstat (limited to 'includes/DataUpdate.php')
-rw-r--r-- | includes/DataUpdate.php | 126 |
1 files changed, 0 insertions, 126 deletions
diff --git a/includes/DataUpdate.php b/includes/DataUpdate.php deleted file mode 100644 index 7b9ac281..00000000 --- a/includes/DataUpdate.php +++ /dev/null @@ -1,126 +0,0 @@ -<?php -/** - * Base code for update jobs that do something with some secondary - * data extracted from article. - * - * 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 - */ - -/** - * Abstract base class for update jobs that do something with some secondary - * data extracted from article. - * - * @note: subclasses should NOT start or commit transactions in their doUpdate() method, - * a transaction will automatically be wrapped around the update. If need be, - * subclasses can override the beginTransaction() and commitTransaction() methods. - */ -abstract class DataUpdate implements DeferrableUpdate { - - /** - * Constructor - */ - public function __construct() { - # noop - } - - /** - * Begin an appropriate transaction, if any. - * This default implementation does nothing. - */ - public function beginTransaction() { - //noop - } - - /** - * Commit the transaction started via beginTransaction, if any. - * This default implementation does nothing. - */ - public function commitTransaction() { - //noop - } - - /** - * Abort / roll back the transaction started via beginTransaction, if any. - * This default implementation does nothing. - */ - public function rollbackTransaction() { - //noop - } - - /** - * Convenience method, calls doUpdate() on every DataUpdate in the array. - * - * This methods supports transactions logic by first calling beginTransaction() - * on all updates in the array, then calling doUpdate() on each, and, if all goes well, - * then calling commitTransaction() on each update. If an error occurs, - * rollbackTransaction() will be called on any update object that had beginTransaction() - * called but not yet commitTransaction(). - * - * This allows for limited transactional logic across multiple backends for storing - * secondary data. - * - * @param array $updates a list of DataUpdate instances - * @throws Exception|null - */ - public static function runUpdates( $updates ) { - if ( empty( $updates ) ) { - return; # nothing to do - } - - $open_transactions = array(); - $exception = null; - - /** - * @var $update DataUpdate - * @var $trans DataUpdate - */ - - try { - // begin transactions - foreach ( $updates as $update ) { - $update->beginTransaction(); - $open_transactions[] = $update; - } - - // do work - foreach ( $updates as $update ) { - $update->doUpdate(); - } - - // commit transactions - while ( count( $open_transactions ) > 0 ) { - $trans = array_pop( $open_transactions ); - $trans->commitTransaction(); - } - } catch ( Exception $ex ) { - $exception = $ex; - wfDebug( "Caught exception, will rethrow after rollback: " . $ex->getMessage() ); - } - - // rollback remaining transactions - while ( count( $open_transactions ) > 0 ) { - $trans = array_pop( $open_transactions ); - $trans->rollbackTransaction(); - } - - if ( $exception ) { - throw $exception; // rethrow after cleanup - } - } - -} |