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<?php /*< * Copyright 2015-2017 MongoDB, Inc.> * Copyright 2015-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\Model; use IteratorIterator; use Traversable;>use function array_key_exists; /** * IndexInfoIterator for both listIndexes command and legacy query results. * * This common iterator may be used to wrap a Cursor returned by both the * listIndexes command and, for legacy servers, queries on the "system.indexes" * collection. * * @internal * @see \MongoDB\Collection::listIndexes() * @see https://github.com/mongodb/specifications/blob/master/source/enumerate-indexes.rst< * @see http://docs.mongodb.org/manual/reference/command/listIndexes/ < * @see http://docs.mongodb.org/manual/reference/system-collections/> * @see https://mongodb.com/docs/manual/reference/command/listIndexes/ > * @see https://mongodb.com/docs/manual/reference/system-collections/*/ class IndexInfoIteratorIterator extends IteratorIterator implements IndexInfoIterator { /** @var string|null $ns */ private $ns;< /** < * @param string|null $ns < */ < public function __construct(Traversable $iterator, $ns = null)> public function __construct(Traversable $iterator, ?string $ns = null){ parent::__construct($iterator); $this->ns = $ns; } /** * Return the current element as an IndexInfo instance. * * @see IndexInfoIterator::current()< * @see http://php.net/iterator.current < * @return IndexInfo> * @see https://php.net/iterator.current*/< public function current()> public function current(): IndexInfo{ $info = parent::current(); if (! array_key_exists('ns', $info) && $this->ns !== null) { $info['ns'] = $this->ns; } return new IndexInfo($info); } }