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ForeignDBViaLBRepo.php
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ForeignDBViaLBRepo.php
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<?php
/**
* 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
*/
use MediaWiki\MediaWikiServices;
use Wikimedia\Rdbms\IConnectionProvider;
/**
* A foreign repository with a MediaWiki database accessible via the configured LBFactory.
*
* @ingroup FileRepo
*/
class ForeignDBViaLBRepo extends LocalRepo implements IForeignRepoWithDB {
/** @var array */
protected $fileFactory = [ ForeignDBFile::class, 'newFromTitle' ];
/** @var array */
protected $fileFromRowFactory = [ ForeignDBFile::class, 'newFromRow' ];
/**
* @param array|null $info
*/
public function __construct( $info ) {
parent::__construct( $info );
'@phan-var array $info';
$this->dbDomain = $info['wiki'];
$this->hasAccessibleSharedCache = $info['hasSharedCache'];
}
public function getPrimaryDB() {
return $this->getDbProvider()->getPrimaryDatabase( $this->dbDomain );
}
public function getReplicaDB() {
return $this->getDbProvider()->getReplicaDatabase( $this->dbDomain );
}
/**
* @return Closure
*/
protected function getDBFactory() {
return function ( $index ) {
if ( $index == DB_PRIMARY ) {
return $this->getDbProvider()->getPrimaryDatabase( $this->dbDomain );
} else {
return $this->getDbProvider()->getReplicaDatabase( $this->dbDomain );
}
};
}
/**
* @return IConnectionProvider
*/
protected function getDbProvider(): IConnectionProvider {
return MediaWikiServices::getInstance()->getConnectionProvider();
}
/**
* @return never
*/
protected function assertWritableRepo() {
throw new LogicException( static::class . ': write operations are not supported.' );
}
public function getInfo() {
return FileRepo::getInfo();
}
}

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ForeignDBViaLBRepo.php (2 KB)

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