(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.
Nota:
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)El nombre de la base de datos en la que ejecutar el comando.
command (MongoDB\Driver\Command)El MongoDB\Driver\Command a ejecutar.
readPreference (MongoDB\Driver\ReadPreference)Opcionalmente, un MongoDB\Driver\ReadPreference para seleccionar el servidor para esta operación. Si no se proporciona, se usará la preferencia de lectura del URI de conexión de MongoDB.
Devuelve un MongoDB\Driver\Cursor en caso de éxito.
Nota:
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.