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<?php
/**
* Init the user_editcount database field based on the number of rows in the
* revision table.
*
* 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
*
* @file
* @ingroup Maintenance
*/
// @codeCoverageIgnoreStart
require_once __DIR__ . '/Maintenance.php';
// @codeCoverageIgnoreEnd
use MediaWiki\WikiMap\WikiMap;
use Wikimedia\Rdbms\IDatabase;
use Wikimedia\Rdbms\RawSQLValue;
class InitEditCount extends Maintenance {
public function __construct() {
parent::__construct();
$this->addOption( 'quick', 'Force the update to be done in a single query' );
$this->addOption( 'background', 'Force replication-friendly mode; may be inefficient but avoids'
. 'locking tables or lagging replica DBs with large updates; calculates counts on a replica DB'
. 'if possible. Background mode will be automatically used if multiple servers are listed in the'
. 'load balancer, usually indicating a replication environment.' );
$this->addDescription( 'Batch-recalculate user_editcount fields from the revision table' );
}
public function execute() {
$dbw = $this->getPrimaryDB();
// Autodetect mode...
if ( $this->hasOption( 'background' ) ) {
$backgroundMode = true;
} elseif ( $this->hasOption( 'quick' ) ) {
$backgroundMode = false;
} else {
$lb = $this->getServiceContainer()->getDBLoadBalancer();
$backgroundMode = $lb->hasReplicaServers();
}
if ( $backgroundMode ) {
$this->output( "Using replication-friendly background mode...\n" );
$dbr = $this->getReplicaDB();
$chunkSize = 100;
$lastUser = $dbr->newSelectQueryBuilder()
->select( 'MAX(user_id)' )
->from( 'user' )
->caller( __METHOD__ )->fetchField();
$start = microtime( true );
$migrated = 0;
for ( $min = 0; $min <= $lastUser; $min += $chunkSize ) {
$max = $min + $chunkSize;
$result = $dbr->newSelectQueryBuilder()
->select( [ 'user_id', 'user_editcount' => "COUNT(actor_rev_user.actor_user)" ] )
->from( 'user' )
->join( 'actor', 'actor_rev_user', 'user_id = actor_rev_user.actor_user' )
->leftJoin( 'revision', 'rev', 'actor_rev_user.actor_id = rev.rev_actor' )
->where( $dbr->expr( 'user_id', '>', $min )->and( 'user_id', '<=', $max ) )
->groupBy( 'user_id' )
->caller( __METHOD__ )->fetchResultSet();
foreach ( $result as $row ) {
$dbw->newUpdateQueryBuilder()
->update( 'user' )
->set( [ 'user_editcount' => $row->user_editcount ] )
->where( [ 'user_id' => $row->user_id ] )
->caller( __METHOD__ )->execute();
++$migrated;
}
$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",
WikiMap::getCurrentWikiDbDomain()->getId(),
$migrated,
min( $max, $lastUser ) / $lastUser * 100.0,
$delta,
$rate ) );
$this->waitForReplication();
}
} else {
$this->output( "Using single-query mode...\n" );
$subquery = $dbw->newSelectQueryBuilder()
->select( 'COUNT(*)' )
->from( 'revision' )
->join( 'actor', 'actor_rev_user', 'actor_rev_user.actor_id = rev_actor' )
->where( 'user_id = actor_rev_user.actor_user' )
->caller( __METHOD__ )->getSQL();
$dbw->newUpdateQueryBuilder()
->table( 'user' )
->set( [ 'user_editcount' => new RawSQLValue( "($subquery)" ) ] )
->where( IDatabase::ALL_ROWS )
->caller( __METHOD__ )
->execute();
}
$this->output( "Done!\n" );
}
}
// @codeCoverageIgnoreStart
$maintClass = InitEditCount::class;
require_once RUN_MAINTENANCE_IF_MAIN;
// @codeCoverageIgnoreEnd
|
