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<?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 slaves with large updates; |
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calculates counts on a slave 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 = $dbw->tableName( 'revision' ); |
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$dbver = $dbw->getServerVersion(); |
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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 = $this->getDB( DB_SLAVE ); |
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$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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wikimedia /
mediawiki
Loading history...
The PSR-1: Basic Coding Standard recommends that a file should either introduce new symbols, that is classes, functions, constants or similar, or have side effects. Side effects are anything that executes logic, like for example printing output, changing ini settings or writing to a file.
The idea behind this recommendation is that merely auto-loading a class should not change the state of an application. It also promotes a cleaner style of programming and makes your code less prone to errors, because the logic is not spread out all over the place.
To learn more about the PSR-1, please see the PHP-FIG site on the PSR-1.