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<?php /* * Copyright 2020-present MongoDB, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at *< * http://www.apache.org/licenses/LICENSE-2.0> * https://www.apache.org/licenses/LICENSE-2.0* * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ namespace MongoDB\Operation; use ArrayIterator; use Iterator; use MongoDB\Command\ListDatabases as ListDatabasesCommand; use MongoDB\Driver\Exception\RuntimeException as DriverRuntimeException; use MongoDB\Driver\Server; use MongoDB\Exception\InvalidArgumentException; use MongoDB\Exception\UnexpectedValueException;>use function array_column; /** * Operation for the ListDatabases command, returning only database names. * * @api * @see \MongoDB\Client::listDatabaseNames()< * @see http://docs.mongodb.org/manual/reference/command/ListDatabases/> * @see https://mongodb.com/docs/manual/reference/command/listDatabases/#mongodb-dbcommand-dbcmd.listDatabases*/ class ListDatabaseNames implements Executable { /** @var ListDatabasesCommand */ private $listDatabases; /** * Constructs a listDatabases command. * * Supported options: * * * authorizedDatabases (boolean): Determines which databases are returned * based on the user privileges. * * For servers < 4.0.5, this option is ignored. *< * * filter (document): Query by which to filter databases.> * * comment (mixed): BSON value to attach as a comment to this command.*< * For servers < 3.6, this option is ignored.> * This is not supported for servers versions < 4.4. > * > * * filter (document): Query by which to filter databases.* * * maxTimeMS (integer): The maximum amount of time to allow the query to * run. * * * session (MongoDB\Driver\Session): Client session. *< * Sessions are not supported for server versions < 3.6. < ** @param array $options Command options * @throws InvalidArgumentException for parameter/option parsing errors */ public function __construct(array $options = []) { $this->listDatabases = new ListDatabasesCommand(['nameOnly' => true] + $options); } /** * Execute the operation. * * @see Executable::execute()< * @param Server $server < * @return Iterator* @throws UnexpectedValueException if the command response was malformed * @throws DriverRuntimeException for other driver errors (e.g. connection errors) */ public function execute(Server $server) : Iterator { $result = $this->listDatabases->execute($server); return new ArrayIterator(array_column($result, 'name')); } }