maintenance/convertUserOptions.php

   1 <?php
   2 /**
   3  * Do each user sequentially, since accounts can't be deleted
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup Maintenance
  22  */
  23
  24 require_once( dirname( __FILE__ ) . '/Maintenance.php' );
  25
  26 class ConvertUserOptions extends Maintenance {
  27
  28         private $mConversionCount = 0;
  29
  30         public function __construct() {
  31                 parent::__construct();
  32                 $this->mDescription = "Convert user options from old to new system";
  33         }
  34
  35         public function execute() {
  36                 $this->output( "...batch conversion of user_options: " );
  37                 $id = 0;
  38                 $dbw = wfGetDB( DB_MASTER );
  39
  40                 if ( !$dbw->fieldExists( 'user', 'user_options', __METHOD__ ) ) {
  41                         $this->output( "nothing to migrate. " );
  42                         return;
  43                 }
  44                 while ( $id !== null ) {
  45                         $idCond = 'user_id > ' . $dbw->addQuotes( $id );
  46                         $optCond = "user_options != " . $dbw->addQuotes( '' ); // For compatibility
  47                         $res = $dbw->select( 'user', '*',
  48                                 array( $optCond, $idCond ), __METHOD__,
  49                                 array( 'LIMIT' => 50, 'FOR UPDATE' )
  50                         );
  51                         $id = $this->convertOptionBatch( $res, $dbw );
  52                         $dbw->commit();
  53
  54                         wfWaitForSlaves();
  55
  56                         if ( $id ) {
  57                                 $this->output( "--Converted to ID $id\n" );
  58                         }
  59                 }
  60                 $this->output( "done. Converted " . $this->mConversionCount . " user records.\n" );
  61         }
  62
  63         /**
  64          * @param $res
  65          * @param $dbw DatabaseBase
  66          * @return null|int
  67          */
  68         function convertOptionBatch( $res, $dbw ) {
  69                 $id = null;
  70                 foreach ( $res as $row ) {
  71                         $this->mConversionCount++;
  72
  73                         $u = User::newFromRow( $row );
  74
  75                         $u->saveSettings();
  76
  77                         // Do this here as saveSettings() doesn't set user_options to '' anymore!
  78                         $dbw->update(
  79                                 'user',
  80                                 array( 'user_options' => '' ),
  81                                 array( 'user_id' => $row->user_id ),
  82                                 __METHOD__
  83                         );
  84                         $id = $row->user_id;
  85                 }
  86
  87                 return $id;
  88         }
  89 }
  90
  91 $maintClass = "ConvertUserOptions";
  92 require_once( RUN_MAINTENANCE_IF_MAIN );