includes/jobqueue/jobs/ActivityUpdateJob.php

   1 <?php
   2 /**
   3  * This program is free software; you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation; either version 2 of the License, or
   6  * (at your option) any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  16  * http://www.gnu.org/copyleft/gpl.html
  17  *
  18  * @file
  19  * @author Aaron Schulz
  20  * @ingroup JobQueue
  21  */
  22
  23 /**
  24  * Job for updating user activity like "last viewed" timestamps
  25  *
  26  * @ingroup JobQueue
  27  * @since 1.26
  28  */
  29 class ActivityUpdateJob extends Job {
  30         function __construct( Title $title, array $params ) {
  31                 parent::__construct( 'activityUpdateJob', $title, $params );
  32
  33                 if ( !isset( $params['type'] ) ) {
  34                         throw new InvalidArgumentException( "Missing 'type' parameter." );
  35                 }
  36
  37                 $this->removeDuplicates = true;
  38         }
  39
  40         public function run() {
  41                 if ( $this->params['type'] === 'updateWatchlistNotification' ) {
  42                         $this->updateWatchlistNotification();
  43                 } else {
  44                         throw new Exception( "Invalid 'type' parameter '{$this->params['type']}'." );
  45                 }
  46
  47                 return true;
  48         }
  49
  50         protected function updateWatchlistNotification() {
  51                 $casTimestamp = ( $this->params['notifTime'] !== null )
  52                         ? $this->params['notifTime']
  53                         : $this->params['curTime'];
  54
  55                 $dbw = wfGetDB( DB_MASTER );
  56                 $dbw->update( 'watchlist',
  57                         array(
  58                                 'wl_notificationtimestamp' => $dbw->timestampOrNull( $this->params['notifTime'] )
  59                         ),
  60                         array(
  61                                 'wl_user' => $this->params['userid'],
  62                                 'wl_namespace' => $this->title->getNamespace(),
  63                                 'wl_title' => $this->title->getDBkey(),
  64                                 // Add a "check and set" style comparison to handle conflicts.
  65                                 // The inequality always avoids updates when the current value
  66                                 // is already NULL per ANSI SQL. This is desired since NULL means
  67                                 // that the user is "caught up" on edits already. When the field
  68                                 // is non-NULL, make sure not to set it back in time or set it to
  69                                 // NULL when newer revisions were in fact added to the page.
  70                                 'wl_notificationtimestamp < ' . $dbw->addQuotes( $dbw->timestamp( $casTimestamp ) )
  71                         ),
  72                         __METHOD__
  73                 );
  74         }
  75 }