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-rw-r--r--maintenance/migrateUserGroup.php70
1 files changed, 70 insertions, 0 deletions
diff --git a/maintenance/migrateUserGroup.php b/maintenance/migrateUserGroup.php
new file mode 100644
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+++ b/maintenance/migrateUserGroup.php
@@ -0,0 +1,70 @@
+<?php
+/**
+ * Re-assign users from an old group to a new one
+ *
+ * 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
+ *
+ * @ingroup Maintenance
+ */
+
+require_once( dirname(__FILE__) . '/Maintenance.php' );
+
+class MigrateUserGroup extends Maintenance {
+ public function __construct() {
+ parent::__construct();
+ $this->mDescription = "Re-assign users from an old group to a new one";
+ $this->addArg( 'oldgroup', 'Old user group key', true );
+ $this->addArg( 'newgroup', 'New user group key', true );
+ $this->setBatchSize( 200 );
+ }
+
+ public function execute() {
+ $count = 0;
+ $oldGroup = $this->getArg( 0 );
+ $newGroup = $this->getArg( 1 );
+ $dbw = wfGetDB( DB_MASTER );
+ $start = $dbw->selectField( 'user_groups', 'MIN(ug_user)',
+ array('ug_group' => $oldGroup), __FUNCTION__ );
+ $end = $dbw->selectField( 'user_groups', 'MAX(ug_user)',
+ array('ug_group' => $oldGroup), __FUNCTION__ );
+ if( $start === null ) {
+ $this->error( "Nothing to do - no users in the '$oldGroup' group", true );
+ }
+ # Do remaining chunk
+ $end += $this->mBatchSize - 1;
+ $blockStart = $start;
+ $blockEnd = $start + $this->mBatchSize - 1;
+ // Migrate users over in batches...
+ while( $blockEnd <= $end ) {
+ $this->output( "Doing users $blockStart to $blockEnd\n" );
+ $dbw->begin();
+ $dbw->update( 'user_groups',
+ array('ug_group' => $newGroup),
+ array('ug_group' => $oldGroup,
+ "ug_user BETWEEN $blockStart AND $blockEnd" )
+ );
+ $count += $dbw->affectedRows();
+ $dbw->commit();
+ $blockStart += $this->mBatchSize;
+ $blockEnd += $this->mBatchSize;
+ wfWaitForSlaves( 5 );
+ }
+ $this->output( "Done! $count user(s) in group '$oldGroup' are now in '$newGroup' instead.\n" );
+ }
+}
+
+$maintClass = "MigrateUserGroup";
+require_once( DO_MAINTENANCE );