(mongodb >=1.0.0)
MongoDB\Driver\Server::executeCommand — Execute a database command on this server
$db
, MongoDB\Driver\Command $command
[, MongoDB\Driver\ReadPreference $readPreference
] )
Executes command on this server.
注意:
The
readPreferenceparameter does not control the server to which the driver issues the command; the command will always be executed on this server object. Instead, it may be used when issuing the command to a secondary (from a replica set connection, not standalone) or mongos node to ensure that the driver sets the wire protocol accordingly or adds the read preference to the command document, respectively.
db (string)コマンドを実行するデータベースの名前。
command (MongoDB\Driver\Command)実行する MongoDB\Driver\Command。
readPreference (MongoDB\Driver\ReadPreference)オプションの MongoDB\Driver\ReadPreference で、この操作の対象となるサーバーを指定します。省略した場合は、MongoDB Connection URI で設定したデフォルトの優先読み込みを使います。
成功した場合に MongoDB\Driver\Cursor を返します。
注意:
This method does not take a MongoDB\Driver\WriteConcern parameter. For write commands (e.g. » findAndModify in MongoDB 3.2+), the write concern should be included in the
commanddocument itself.It is the caller's responsibility to ensure that the server is capable of executing the command. For example, executing a write operation on a secondary (excluding its "local" database) will fail.