Current Path : C:/xampp/htdocs/moodle/cache/stores/mongodb/MongoDB/Operation/ |
Current File : C:/xampp/htdocs/moodle/cache/stores/mongodb/MongoDB/Operation/Delete.php |
<?php /* * Copyright 2015-2017 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 * * 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 MongoDB\DeleteResult; use MongoDB\Driver\BulkWrite as Bulk; use MongoDB\Driver\Exception\RuntimeException as DriverRuntimeException; use MongoDB\Driver\Server; use MongoDB\Driver\Session; use MongoDB\Driver\WriteConcern; use MongoDB\Exception\InvalidArgumentException; use MongoDB\Exception\UnsupportedException; use function is_array; use function is_object; use function MongoDB\server_supports_feature; /** * Operation for the delete command. * * This class is used internally by the DeleteMany and DeleteOne operation * classes. * * @internal * @see http://docs.mongodb.org/manual/reference/command/delete/ */ class Delete implements Executable, Explainable { /** @var integer */ private static $wireVersionForCollation = 5; /** @var string */ private $databaseName; /** @var string */ private $collectionName; /** @var array|object */ private $filter; /** @var integer */ private $limit; /** @var array */ private $options; /** * Constructs a delete command. * * Supported options: * * * collation (document): Collation specification. * * This is not supported for server versions < 3.4 and will result in an * exception at execution time if used. * * * session (MongoDB\Driver\Session): Client session. * * Sessions are not supported for server versions < 3.6. * * * writeConcern (MongoDB\Driver\WriteConcern): Write concern. * * @param string $databaseName Database name * @param string $collectionName Collection name * @param array|object $filter Query by which to delete documents * @param integer $limit The number of matching documents to * delete. Must be 0 or 1, for all or a * single document, respectively. * @param array $options Command options * @throws InvalidArgumentException for parameter/option parsing errors */ public function __construct($databaseName, $collectionName, $filter, $limit, array $options = []) { if (! is_array($filter) && ! is_object($filter)) { throw InvalidArgumentException::invalidType('$filter', $filter, 'array or object'); } if ($limit !== 0 && $limit !== 1) { throw new InvalidArgumentException('$limit must be 0 or 1'); } if (isset($options['collation']) && ! is_array($options['collation']) && ! is_object($options['collation'])) { throw InvalidArgumentException::invalidType('"collation" option', $options['collation'], 'array or object'); } if (isset($options['session']) && ! $options['session'] instanceof Session) { throw InvalidArgumentException::invalidType('"session" option', $options['session'], Session::class); } if (isset($options['writeConcern']) && ! $options['writeConcern'] instanceof WriteConcern) { throw InvalidArgumentException::invalidType('"writeConcern" option', $options['writeConcern'], WriteConcern::class); } if (isset($options['writeConcern']) && $options['writeConcern']->isDefault()) { unset($options['writeConcern']); } $this->databaseName = (string) $databaseName; $this->collectionName = (string) $collectionName; $this->filter = $filter; $this->limit = $limit; $this->options = $options; } /** * Execute the operation. * * @see Executable::execute() * @param Server $server * @return DeleteResult * @throws DriverRuntimeException for other driver errors (e.g. connection errors) */ public function execute(Server $server) { if (isset($this->options['collation']) && ! server_supports_feature($server, self::$wireVersionForCollation)) { throw UnsupportedException::collationNotSupported(); } $inTransaction = isset($this->options['session']) && $this->options['session']->isInTransaction(); if ($inTransaction && isset($this->options['writeConcern'])) { throw UnsupportedException::writeConcernNotSupportedInTransaction(); } $bulk = new Bulk(); $bulk->delete($this->filter, $this->createDeleteOptions()); $writeResult = $server->executeBulkWrite($this->databaseName . '.' . $this->collectionName, $bulk, $this->createExecuteOptions()); return new DeleteResult($writeResult); } public function getCommandDocument(Server $server) { $cmd = ['delete' => $this->collectionName, 'deletes' => [['q' => $this->filter] + $this->createDeleteOptions()]]; if (isset($this->options['writeConcern'])) { $cmd['writeConcern'] = $this->options['writeConcern']; } return $cmd; } /** * Create options for the delete command. * * Note that these options are different from the bulk write options, which * are created in createExecuteOptions(). * * @return array */ private function createDeleteOptions() { $deleteOptions = ['limit' => $this->limit]; if (isset($this->options['collation'])) { $deleteOptions['collation'] = (object) $this->options['collation']; } return $deleteOptions; } /** * Create options for executing the bulk write. * * @see http://php.net/manual/en/mongodb-driver-server.executebulkwrite.php * @return array */ private function createExecuteOptions() { $options = []; if (isset($this->options['session'])) { $options['session'] = $this->options['session']; } if (isset($this->options['writeConcern'])) { $options['writeConcern'] = $this->options['writeConcern']; } return $options; } }