105 lines
3.3 KiB
PHP
105 lines
3.3 KiB
PHP
<?php
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/**
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* Init the user_editcount database field based on the number of rows in the
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* revision table.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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* @ingroup Maintenance
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*/
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require_once __DIR__ . '/Maintenance.php';
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class InitEditCount extends Maintenance {
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public function __construct() {
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parent::__construct();
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$this->addOption( 'quick', 'Force the update to be done in a single query' );
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$this->addOption( 'background', 'Force replication-friendly mode; may be inefficient but
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avoids locking tables or lagging replica DBs with large updates;
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calculates counts on a replica DB if possible.
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Background mode will be automatically used if multiple servers are listed
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in the load balancer, usually indicating a replication environment.' );
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$this->addDescription( 'Batch-recalculate user_editcount fields from the revision table' );
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}
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public function execute() {
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$dbw = $this->getDB( DB_MASTER );
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$user = $dbw->tableName( 'user' );
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$revision = $dbw->tableName( 'revision' );
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// Autodetect mode...
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if ( $this->hasOption( 'background' ) ) {
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$backgroundMode = true;
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} elseif ( $this->hasOption( 'quick' ) ) {
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$backgroundMode = false;
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} else {
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$backgroundMode = wfGetLB()->getServerCount() > 1;
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}
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if ( $backgroundMode ) {
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$this->output( "Using replication-friendly background mode...\n" );
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$dbr = $this->getDB( DB_REPLICA );
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$chunkSize = 100;
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$lastUser = $dbr->selectField( 'user', 'MAX(user_id)', '', __METHOD__ );
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$start = microtime( true );
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$migrated = 0;
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for ( $min = 0; $min <= $lastUser; $min += $chunkSize ) {
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$max = $min + $chunkSize;
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$result = $dbr->query(
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"SELECT
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user_id,
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COUNT(rev_user) AS user_editcount
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FROM $user
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LEFT OUTER JOIN $revision ON user_id=rev_user
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WHERE user_id > $min AND user_id <= $max
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GROUP BY user_id",
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__METHOD__ );
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foreach ( $result as $row ) {
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$dbw->update( 'user',
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[ 'user_editcount' => $row->user_editcount ],
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[ 'user_id' => $row->user_id ],
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__METHOD__ );
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++$migrated;
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}
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$delta = microtime( true ) - $start;
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$rate = ( $delta == 0.0 ) ? 0.0 : $migrated / $delta;
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$this->output( sprintf( "%s %d (%0.1f%%) done in %0.1f secs (%0.3f accounts/sec).\n",
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wfWikiID(),
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$migrated,
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min( $max, $lastUser ) / $lastUser * 100.0,
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$delta,
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$rate ) );
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wfWaitForSlaves();
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}
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} else {
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$this->output( "Using single-query mode...\n" );
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$sql = "UPDATE $user SET user_editcount=(SELECT COUNT(*) FROM $revision WHERE rev_user=user_id)";
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$dbw->query( $sql );
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}
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$this->output( "Done!\n" );
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}
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}
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$maintClass = "InitEditCount";
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require_once RUN_MAINTENANCE_IF_MAIN;
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