PostgresDatabaseCreator.php

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<?php
 
namespace MediaWiki\Installer;
 
use MediaWiki\Status\Status;
use Wikimedia\Rdbms\IDatabase;
 
class PostgresDatabaseCreator extends NetworkedDatabaseCreator {
    protected function existsInConnection( IDatabase $conn, $database ) {
        return (bool)$conn->selectField( '"pg_catalog"."pg_database"', '1',
            [ 'datname' => $database ], __METHOD__ );
    }
 
    protected function createInConnection( IDatabase $conn, $database ): Status {
        $safedb = $conn->addIdentifierQuotes( $database );
        $conn->query( "CREATE DATABASE $safedb", __METHOD__ );
        return Status::newGood();
    }
}