-if( $backgroundMode ) {
- echo "Using replication-friendly background mode...\n";
-
- $dbr = wfGetDB( DB_SLAVE );
- $chunkSize = 100;
- $lastUser = $dbr->selectField( 'user', 'MAX(user_id)', '', __FUNCTION__ );
-
- $start = microtime( true );
- $migrated = 0;
- for( $min = 0; $min <= $lastUser; $min += $chunkSize ) {
- $max = $min + $chunkSize;
- $result = $dbr->query(
- "SELECT
- user_id,
- COUNT(rev_user) AS user_editcount
- FROM $user
- LEFT OUTER JOIN $revision ON user_id=rev_user
- WHERE user_id > $min AND user_id <= $max
- GROUP BY user_id",
- __FUNCTION__ );
-
- while( $row = $dbr->fetchObject( $result ) ) {
- $dbw->update( 'user',
- array( 'user_editcount' => $row->user_editcount ),
- array( 'user_id' => $row->user_id ),
- __FUNCTION__ );
- ++$migrated;
+ $dbr = wfGetDB( DB_SLAVE );
+ $chunkSize = 100;
+ $lastUser = $dbr->selectField( 'user', 'MAX(user_id)', '', __METHOD__ );
+
+ $start = microtime( true );
+ $migrated = 0;
+ for( $min = 0; $min <= $lastUser; $min += $chunkSize ) {
+ $max = $min + $chunkSize;
+ $result = $dbr->query(
+ "SELECT
+ user_id,
+ COUNT(rev_user) AS user_editcount
+ FROM $user
+ LEFT OUTER JOIN $revision ON user_id=rev_user
+ WHERE user_id > $min AND user_id <= $max
+ GROUP BY user_id",
+ __METHOD__ );
+
+ while( $row = $dbr->fetchObject( $result ) ) {
+ $dbw->update( 'user',
+ array( 'user_editcount' => $row->user_editcount ),
+ array( 'user_id' => $row->user_id ),
+ __METHOD__ );
+ ++$migrated;
+ }
+ $dbr->freeResult( $result );
+
+ $delta = microtime( true ) - $start;
+ $rate = ($delta == 0.0) ? 0.0 : $migrated / $delta;
+ $this->output( sprintf( "%s %d (%0.1f%%) done in %0.1f secs (%0.3f accounts/sec).\n",
+ $wgDBname,
+ $migrated,
+ min( $max, $lastUser ) / $lastUser * 100.0,
+ $delta,
+ $rate ) );
+
+ wfWaitForSlaves( 10 );
+ }
+ } else {
+ // Subselect should work on modern MySQLs etc
+ $this->output( "Using single-query mode...\n" );
+ $sql = "UPDATE $user SET user_editcount=(SELECT COUNT(*) FROM $revision WHERE rev_user=user_id)";
+ $dbw->query( $sql );