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<?php
/**
* User edit count incrementing.
*
* 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
*/
namespace MediaWiki\Deferred;
use MediaWiki\HookContainer\HookRunner;
use MediaWiki\MediaWikiServices;
use MediaWiki\User\UserIdentity;
use RuntimeException;
use Wikimedia\Assert\Assert;
use Wikimedia\Rdbms\RawSQLValue;
/**
* Handles increment the edit count for a given set of users
*/
class UserEditCountUpdate implements DeferrableUpdate, MergeableUpdate {
/**
* We need to keep a single copy of the relevant UserIdentity to be able to pass to UserEditTracker
*
* @var UserEditCountInfo[] Map of (user ID => UserEditCountInfo)
*/
private $infoByUser;
/**
* @param UserIdentity $user
* @param int $increment
*/
public function __construct( UserIdentity $user, $increment ) {
if ( !$user->getId() ) {
throw new RuntimeException( "Got anonymous user" );
}
$this->infoByUser = [
$user->getId() => new UserEditCountInfo( $user, $increment ),
];
}
public function merge( MergeableUpdate $update ) {
/** @var UserEditCountUpdate $update */
Assert::parameterType( __CLASS__, $update, '$update' );
'@phan-var UserEditCountUpdate $update';
foreach ( $update->infoByUser as $userId => $info ) {
if ( !isset( $this->infoByUser[$userId] ) ) {
$this->infoByUser[$userId] = $info;
} else {
$this->infoByUser[$userId]->merge( $info );
}
}
}
/**
* Commits the provided user edit count increments to the database
*/
public function doUpdate() {
$mwServices = MediaWikiServices::getInstance();
$lb = $mwServices->getDBLoadBalancer();
$dbw = $lb->getConnection( DB_PRIMARY );
$editTracker = $mwServices->getUserEditTracker();
$fname = __METHOD__;
( new AutoCommitUpdate( $dbw, __METHOD__, function () use ( $lb, $dbw, $fname, $editTracker ) {
foreach ( $this->infoByUser as $userId => $info ) {
$dbw->newUpdateQueryBuilder()
->update( 'user' )
->set( [
'user_editcount' => new RawSQLValue(
'user_editcount+' . (int)$info->getIncrement()
)
] )
->where( [ 'user_id' => $userId, $dbw->expr( 'user_editcount', '!=', null ) ] )
->caller( $fname )->execute();
// Lazy initialization check...
if ( $dbw->affectedRows() == 0 ) {
// The user_editcount is probably NULL (e.g. not initialized).
// Since this update runs after the new revisions were committed,
// wait for the replica DB to catch up so they will be counted.
$dbr = $lb->getConnection( DB_REPLICA );
// If $dbr is actually the primary DB, then clearing the snapshot
// is harmless and waitForPrimaryPos() will just no-op.
$dbr->flushSnapshot( $fname );
$lb->waitForPrimaryPos( $dbr );
$editTracker->initializeUserEditCount( $info->getUser() );
}
// Clear the edit count in the UserEditTracker cache.
$editTracker->clearUserEditCache( $info->getUser() );
}
} ) )->doUpdate();
$hookRunner = new HookRunner( $mwServices->getHookContainer() );
$hookRunner->onUserEditCountUpdate( array_values( $this->infoByUser ) );
}
}
/** @deprecated class alias since 1.42 */
class_alias( UserEditCountUpdate::class, 'UserEditCountUpdate' );
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