| Index: trunk/phase3/maintenance/migrateUserGroup.php |
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| | 2 | +<?php
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| | 3 | +/**
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| | 4 | + * Re-assign users from an old group to a new one
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| | 5 | + *
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| | 6 | + * This program is free software; you can redistribute it and/or modify
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| | 7 | + * it under the terms of the GNU General Public License as published by
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| | 8 | + * the Free Software Foundation; either version 2 of the License, or
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| | 9 | + * (at your option) any later version.
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| | 10 | + *
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| | 11 | + * This program is distributed in the hope that it will be useful,
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| | 12 | + * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| | 13 | + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| | 14 | + * GNU General Public License for more details.
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| | 15 | + *
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| | 16 | + * You should have received a copy of the GNU General Public License along
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| | 17 | + * with this program; if not, write to the Free Software Foundation, Inc.,
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| | 18 | + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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| | 19 | + * http://www.gnu.org/copyleft/gpl.html
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| | 20 | + *
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| | 21 | + * @ingroup Maintenance
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| | 22 | + */
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| | 23 | +
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| | 24 | +require_once( dirname(__FILE__) . '/Maintenance.php' );
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| | 25 | +
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| | 26 | +class MigrateUserGroup extends Maintenance {
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| | 27 | + public function __construct() {
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| | 28 | + parent::__construct();
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| | 29 | + $this->mDescription = "Re-assign users from an old group to a new one";
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| | 30 | + $this->addArg( 'oldgroup', 'Old user group key', true );
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| | 31 | + $this->addArg( 'newgroup', 'New user group key', true );
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| | 32 | + $this->setBatchSize( 200 );
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| | 33 | + }
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| | 34 | +
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| | 35 | + public function execute() {
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| | 36 | + $count = 0;
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| | 37 | + $oldGroup = $this->getArg( 0 );
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| | 38 | + $newGroup = $this->getArg( 1 );
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| | 39 | + $dbr = wfGetDB( DB_SLAVE );
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| | 40 | + $start = $dbr->selectField( 'user_groups', 'MIN(ug_user)',
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| | 41 | + array('ug_group' => $oldGroup), __FUNCTION__ );
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| | 42 | + $end = $dbr->selectField( 'user_groups', 'MAX(ug_user)',
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| | 43 | + array('ug_group' => $oldGroup), __FUNCTION__ );
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| | 44 | + if( $start === null ) {
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| | 45 | + $this->error( "Nothing to do - no users in the '$oldGroup' group", true );
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| | 46 | + }
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| | 47 | + # Do remaining chunk
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| | 48 | + $end += $this->mBatchSize - 1;
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| | 49 | + $blockStart = $start;
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| | 50 | + $blockEnd = $start + $this->mBatchSize - 1;
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| | 51 | + // Migrate users over in batches...
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| | 52 | + $dbw = wfGetDB( DB_MASTER );
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| | 53 | + while( $blockEnd <= $end ) {
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| | 54 | + $this->output( "Doing users $blockStart to $blockEnd\n" );
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| | 55 | + $dbw->begin();
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| | 56 | + $dbw->update( 'user_groups',
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| | 57 | + array('ug_group' => $newGroup),
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| | 58 | + array('ug_group' => $oldGroup,
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| | 59 | + "ug_user BETWEEN $blockStart AND $blockEnd" )
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| | 60 | + );
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| | 61 | + $count += $dbw->affectedRows();
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| | 62 | + $dbw->commit();
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| | 63 | + $blockStart += $this->mBatchSize;
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| | 64 | + $blockEnd += $this->mBatchSize;
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| | 65 | + wfWaitForSlaves( 5 );
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| | 66 | + }
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| | 67 | + $this->output( "Done! $count user(s) in group '$oldGroup' are now in '$newGroup' instead.\n" );
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| | 68 | + }
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| | 69 | +}
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| | 70 | +
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| | 71 | +$maintClass = "MigrateUserGroup";
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| | 72 | +require_once( DO_MAINTENANCE );
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