# MongoDB\Driver\Manager::executeWriteCommand

(mongodb >=1.4.0)

MongoDB\Driver\Manager::executeWriteCommand — Execute a database command that writes

### 说明

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

Executes the command on the primary 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.

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

### 参数

`db` (string)

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

`command` (MongoDB\Driver\Command)

  The command to execute.

`options`

  options
  Option | Type | Description
  --- | --- | ---
  session | MongoDB\Driver\Session | A session to associate with the operation.
  writeConcern | MongoDB\Driver\WriteConcern | A write concern to apply to the operation.

  警告

  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().

### 返回值

Returns MongoDB\Driver\Cursor on success.

### 错误／异常

- Throws MongoDB\Driver\Exception\InvalidArgumentException if the `"session"` option is used with an associated transaction in combination with a `"readConcern"` or `"writeConcern"` option.
- Throws MongoDB\Driver\Exception\InvalidArgumentException if the `"session"` option is used in combination with an unacknowledged write concern.
- Throws MongoDB\Driver\Exception\InvalidArgumentException on argument parsing errors.
- Throws MongoDB\Driver\Exception\ConnectionException if connection to the server fails (for reasons other than authentication).
- Throws MongoDB\Driver\Exception\AuthenticationException if authentication is needed and fails.
- Throws MongoDB\Driver\Exception\RuntimeException on other errors (e.g. invalid command).

### 更新日志

版本 | 说明
--- | ---
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.

### 参见

- MongoDB\Driver\Command
- MongoDB\Driver\Cursor
- MongoDB\Driver\Manager::executeCommand() - Execute a database command
- MongoDB\Driver\Manager::executeReadCommand() - Execute a database command that reads
- MongoDB\Driver\Manager::executeReadWriteCommand() - Execute a database command that reads and writes
- MongoDB\Driver\Server::executeWriteCommand() - Execute a database command that writes on this server

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