PHPWales 2020 - June 3rd to June 4th

MongoDB\Driver\Manager::executeReadCommand

(mongodb >=1.4.0)

MongoDB\Driver\Manager::executeReadCommandExecute a database command that reads

Descrição

final public MongoDB\Driver\Manager::executeReadCommand ( string $db , MongoDB\Driver\Command $command [, array $options = array() ] ) : MongoDB\Driver\Cursor

Selects a server according to the "readPreference" option and executes the command on that server. By default, the read preference from the MongoDB Connection URI will be used.

This method will apply logic that is specific to commands that read (e.g. » count) and take the MongoDB server version into account. The "readConcern" option will default to the corresponding value from the MongoDB Connection URI.

Parâmetros

db (string)

O nome do banco a executar o comando.

command (MongoDB\Driver\Command)

O MongoDB\Driver\Command a executar.

options

options
Option Type Description
readConcern MongoDB\Driver\ReadConcern

A read concern to apply to the operation.

This option is available in MongoDB 3.2+ and will result in an exception at execution time if specified for an older server version.

readPreference MongoDB\Driver\ReadPreference

A read preference to use for selecting a server for the operation.

session MongoDB\Driver\Session

A session to associate with the operation.

Aviso

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().

Valor Retornado

Retorna MongoDB\Driver\Cursor no sucesso.

Erros

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