maintenance/convertUserOptions.php

   1 <?php
   2 /**
   3  * Convert user options to the new `user_properties` table.
   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 __DIR__ . '/Maintenance.php';
  25
  26 /**
  27  * Maintenance script to convert user options to the new `user_properties` table.
  28  *
  29  * @ingroup Maintenance
  30  */
  31 class ConvertUserOptions extends Maintenance {
  32
  33         private $mConversionCount = 0;
  34
  35         public function __construct() {
  36                 parent::__construct();
  37                 $this->mDescription = "Convert user options from old to new system";
  38                 $this->setBatchSize( 50 );
  39         }
  40
  41         public function execute() {
  42                 $this->output( "...batch conversion of user_options: " );
  43                 $id = 0;
  44                 $dbw = wfGetDB( DB_MASTER );
  45
  46                 if ( !$dbw->fieldExists( 'user', 'user_options', __METHOD__ ) ) {
  47                         $this->output( "nothing to migrate. " );
  48
  49                         return;
  50                 }
  51                 while ( $id !== null ) {
  52                         $res = $dbw->select( 'user',
  53                                 array( 'user_id', 'user_options' ),
  54                                 array(
  55                                         'user_id > ' . $dbw->addQuotes( $id ),
  56                                         "user_options != " . $dbw->addQuotes( '' ),
  57                                 ),
  58                                 __METHOD__,
  59                                 array(
  60                                         'ORDER BY' => 'user_id',
  61                                         'LIMIT' => $this->mBatchSize,
  62                                 )
  63                         );
  64                         $id = $this->convertOptionBatch( $res, $dbw );
  65
  66                         wfWaitForSlaves();
  67
  68                         if ( $id ) {
  69                                 $this->output( "--Converted to ID $id\n" );
  70                         }
  71                 }
  72                 $this->output( "done. Converted " . $this->mConversionCount . " user records.\n" );
  73         }
  74
  75         /**
  76          * @param ResultWrapper $res
  77          * @param DatabaseBase $dbw
  78          * @return null|int
  79          */
  80         function convertOptionBatch( $res, $dbw ) {
  81                 $id = null;
  82                 foreach ( $res as $row ) {
  83                         $this->mConversionCount++;
  84                         $insertRows = array();
  85                         foreach ( explode( "\n", $row->user_options ) as $s ) {
  86                                 $m = array();
  87                                 if ( !preg_match( "/^(.[^=]*)=(.*)$/", $s, $m ) ) {
  88                                         continue;
  89                                 }
  90
  91                                 // MW < 1.16 would save even default values. Filter them out
  92                                 // here (as in User) to avoid adding many unnecessary rows.
  93                                 $defaultOption = User::getDefaultOption( $m[1] );
  94                                 if ( is_null( $defaultOption ) || $m[2] != $defaultOption ) {
  95                                         $insertRows[] = array(
  96                                                 'up_user' => $row->user_id,
  97                                                 'up_property' => $m[1],
  98                                                 'up_value' => $m[2],
  99                                         );
 100                                 }
 101                         }
 102
 103                         if ( count( $insertRows ) ) {
 104                                 $dbw->insert( 'user_properties', $insertRows, __METHOD__, array( 'IGNORE' ) );
 105                         }
 106
 107                         $dbw->update(
 108                                 'user',
 109                                 array( 'user_options' => '' ),
 110                                 array( 'user_id' => $row->user_id ),
 111                                 __METHOD__
 112                         );
 113                         $id = $row->user_id;
 114                 }
 115
 116                 return $id;
 117         }
 118 }
 119
 120 $maintClass = "ConvertUserOptions";
 121 require_once RUN_MAINTENANCE_IF_MAIN;