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<?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\Driver\Command;
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\UnexpectedValueException;
use MongoDB\Exception\UnsupportedException;
use function current;
use function is_array;
use function is_bool;
use function is_integer;
use function is_object;
use function MongoDB\create_field_path_type_map;
use function MongoDB\is_pipeline;
use function MongoDB\server_supports_feature;
/**
* Operation for the findAndModify command.
*
* This class is used internally by the FindOneAndDelete, FindOneAndReplace, and
* FindOneAndUpdate operation classes.
*
* @internal
* @see http://docs.mongodb.org/manual/reference/command/findAndModify/
*/
class FindAndModify implements Executable, Explainable
{
/** @var integer */
private static $wireVersionForArrayFilters = 6;
/** @var integer */
private static $wireVersionForCollation = 5;
/** @var integer */
private static $wireVersionForDocumentLevelValidation = 4;
/** @var integer */
private static $wireVersionForWriteConcern = 4;
/** @var string */
private $databaseName;
/** @var string */
private $collectionName;
/** @var array */
private $options;
/**
* Constructs a findAndModify command.
*
* Supported options:
*
* * arrayFilters (document array): A set of filters specifying to which
* array elements an update should apply.
*
* This is not supported for server versions < 3.6 and will result in an
* exception at execution time if used.
*
* * collation (document): Collation specification.
*
* This is not supported for server versions < 3.4 and will result in an
* exception at execution time if used.
*
* * bypassDocumentValidation (boolean): If true, allows the write to
* circumvent document level validation.
*
* For servers < 3.2, this option is ignored as document level validation
* is not available.
*
* * fields (document): Limits the fields to return for the matching
* document.
*
* * maxTimeMS (integer): The maximum amount of time to allow the query to
* run.
*
* * new (boolean): When true, returns the modified document rather than
* the original. This option is ignored for remove operations. The
* The default is false.
*
* * query (document): Query by which to filter documents.
*
* * remove (boolean): When true, removes the matched document. This option
* cannot be true if the update option is set. The default is false.
*
* * session (MongoDB\Driver\Session): Client session.
*
* Sessions are not supported for server versions < 3.6.
*
* * sort (document): Determines which document the operation modifies if
* the query selects multiple documents.
*
* * typeMap (array): Type map for BSON deserialization.
*
* * update (document): Update or replacement to apply to the matched
* document. This option cannot be set if the remove option is true.
*
* * upsert (boolean): When true, a new document is created if no document
* matches the query. This option is ignored for remove operations. The
* default is false.
*
* * writeConcern (MongoDB\Driver\WriteConcern): Write concern.
*
* This is not supported for server versions < 3.2 and will result in an
* exception at execution time if used.
*
* @param string $databaseName Database name
* @param string $collectionName Collection name
* @param array $options Command options
* @throws InvalidArgumentException for parameter/option parsing errors
*/
public function __construct($databaseName, $collectionName, array $options)
{
$options += [
'new' => false,
'remove' => false,
'upsert' => false,
];
if (isset($options['arrayFilters']) && ! is_array($options['arrayFilters'])) {
throw InvalidArgumentException::invalidType('"arrayFilters" option', $options['arrayFilters'], 'array');
}
if (isset($options['bypassDocumentValidation']) && ! is_bool($options['bypassDocumentValidation'])) {
throw InvalidArgumentException::invalidType('"bypassDocumentValidation" option', $options['bypassDocumentValidation'], 'boolean');
}
if (isset($options['collation']) && ! is_array($options['collation']) && ! is_object($options['collation'])) {
throw InvalidArgumentException::invalidType('"collation" option', $options['collation'], 'array or object');
}
if (isset($options['fields']) && ! is_array($options['fields']) && ! is_object($options['fields'])) {
throw InvalidArgumentException::invalidType('"fields" option', $options['fields'], 'array or object');
}
if (isset($options['maxTimeMS']) && ! is_integer($options['maxTimeMS'])) {
throw InvalidArgumentException::invalidType('"maxTimeMS" option', $options['maxTimeMS'], 'integer');
}
if (! is_bool($options['new'])) {
throw InvalidArgumentException::invalidType('"new" option', $options['new'], 'boolean');
}
if (isset($options['query']) && ! is_array($options['query']) && ! is_object($options['query'])) {
throw InvalidArgumentException::invalidType('"query" option', $options['query'], 'array or object');
}
if (! is_bool($options['remove'])) {
throw InvalidArgumentException::invalidType('"remove" option', $options['remove'], 'boolean');
}
if (isset($options['session']) && ! $options['session'] instanceof Session) {
throw InvalidArgumentException::invalidType('"session" option', $options['session'], Session::class);
}
if (isset($options['sort']) && ! is_array($options['sort']) && ! is_object($options['sort'])) {
throw InvalidArgumentException::invalidType('"sort" option', $options['sort'], 'array or object');
}
if (isset($options['typeMap']) && ! is_array($options['typeMap'])) {
throw InvalidArgumentException::invalidType('"typeMap" option', $options['typeMap'], 'array');
}
if (isset($options['update']) && ! is_array($options['update']) && ! is_object($options['update'])) {
throw InvalidArgumentException::invalidType('"update" option', $options['update'], 'array or object');
}
if (isset($options['writeConcern']) && ! $options['writeConcern'] instanceof WriteConcern) {
throw InvalidArgumentException::invalidType('"writeConcern" option', $options['writeConcern'], WriteConcern::class);
}
if (! is_bool($options['upsert'])) {
throw InvalidArgumentException::invalidType('"upsert" option', $options['upsert'], 'boolean');
}
if (! (isset($options['update']) xor $options['remove'])) {
throw new InvalidArgumentException('The "remove" option must be true or an "update" document must be specified, but not both');
}
if (isset($options['writeConcern']) && $options['writeConcern']->isDefault()) {
unset($options['writeConcern']);
}
$this->databaseName = (string) $databaseName;
$this->collectionName = (string) $collectionName;
$this->options = $options;
}
/**
* Execute the operation.
*
* @see Executable::execute()
* @param Server $server
* @return array|object|null
* @throws UnexpectedValueException if the command response was malformed
* @throws UnsupportedException if array filters, collation, or write concern is used and unsupported
* @throws DriverRuntimeException for other driver errors (e.g. connection errors)
*/
public function execute(Server $server)
{
if (isset($this->options['arrayFilters']) && ! server_supports_feature($server, self::$wireVersionForArrayFilters)) {
throw UnsupportedException::arrayFiltersNotSupported();
}
if (isset($this->options['collation']) && ! server_supports_feature($server, self::$wireVersionForCollation)) {
throw UnsupportedException::collationNotSupported();
}
if (isset($this->options['writeConcern']) && ! server_supports_feature($server, self::$wireVersionForWriteConcern)) {
throw UnsupportedException::writeConcernNotSupported();
}
$inTransaction = isset($this->options['session']) && $this->options['session']->isInTransaction();
if ($inTransaction && isset($this->options['writeConcern'])) {
throw UnsupportedException::writeConcernNotSupportedInTransaction();
}
$cursor = $server->executeWriteCommand($this->databaseName, new Command($this->createCommandDocument($server)), $this->createOptions());
if (isset($this->options['typeMap'])) {
$cursor->setTypeMap(create_field_path_type_map($this->options['typeMap'], 'value'));
}
$result = current($cursor->toArray());
return isset($result->value) ? $result->value : null;
}
public function getCommandDocument(Server $server)
{
return $this->createCommandDocument($server);
}
/**
* Create the findAndModify command document.
*
* @param Server $server
* @return array
*/
private function createCommandDocument(Server $server)
{
$cmd = ['findAndModify' => $this->collectionName];
if ($this->options['remove']) {
$cmd['remove'] = true;
} else {
$cmd['new'] = $this->options['new'];
$cmd['upsert'] = $this->options['upsert'];
}
foreach (['collation', 'fields', 'query', 'sort'] as $option) {
if (isset($this->options[$option])) {
$cmd[$option] = (object) $this->options[$option];
}
}
if (isset($this->options['update'])) {
$cmd['update'] = is_pipeline($this->options['update'])
? $this->options['update']
: (object) $this->options['update'];
}
if (isset($this->options['arrayFilters'])) {
$cmd['arrayFilters'] = $this->options['arrayFilters'];
}
if (isset($this->options['maxTimeMS'])) {
$cmd['maxTimeMS'] = $this->options['maxTimeMS'];
}
if (! empty($this->options['bypassDocumentValidation']) &&
server_supports_feature($server, self::$wireVersionForDocumentLevelValidation)
) {
$cmd['bypassDocumentValidation'] = $this->options['bypassDocumentValidation'];
}
return $cmd;
}
/**
* Create options for executing the command.
*
* @see http://php.net/manual/en/mongodb-driver-server.executewritecommand.php
* @return array
*/
private function createOptions()
{
$options = [];
if (isset($this->options['session'])) {
$options['session'] = $this->options['session'];
}
if (isset($this->options['writeConcern'])) {
$options['writeConcern'] = $this->options['writeConcern'];
}
return $options;
}
}