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MongoDB\Driver\Server::executeWriteCommand

(mongodb >=1.4.0)

MongoDB\Driver\Server::executeWriteCommand — Execute a database command that writes on this server

Beschreibung

final public MongoDB\Driver\Server::executeWriteCommand(string $db, MongoDB\Driver\Command $command, ?array $options = null): MongoDB\Driver\Cursor

Executes the command on this server.

This method will apply logic that is specific to commands that write (e.g. » drop). The default value for the "writeConcern" option will be inferred from an active transaction (indicated by the "session" option), followed by the connection URI.

Hinweis: This method is not intended to be used to execute » insert, » update, or » delete commands. Users are encouraged to use MongoDB\Driver\Server::executeBulkWrite() for those operations.

Parameter-Liste

db (string)

The name of the database on which to execute the command.

command (MongoDB\Driver\Command)

Der auszuführende Befehl.

options

options
Option Type Description
session MongoDB\Driver\Session

Eine Session, die mit dem Vorgang verknüpft werden soll.

writeConcern MongoDB\Driver\WriteConcern

Eine Schreibanweisung (Write Concern), das auf den Vorgang angewendet werden soll.

Warnung

If you are using a "session" which has a transaction in progress, you cannot specify a "readConcern" or "writeConcern" option. This will result in an MongoDB\Driver\Exception\InvalidArgumentException being thrown. Instead, you should set these two options when you create the transaction with MongoDB\Driver\Session::startTransaction().

Rückgabewerte

Gibt bei Erfolg einen MongoDB\Driver\Cursor zurück.

Fehler/Exceptions

Changelog

Version Beschreibung
PECL mongodb 1.4.4 MongoDB\Driver\Exception\InvalidArgumentException will be thrown if the "session" option is used in combination with an unacknowledged write concern.

Anmerkungen

Hinweis: Es liegt in der Verantwortung des aufrufenden Codes, sicherzustellen, dass der Server in der Lage ist, den Schreibvorgang auszuführen. So schlägt beispielsweise die Ausführung eines Schreibvorgangs auf einem sekundären Server (mit Ausnahme seiner "lokalen" Datenbank) fehl.

Siehe auch