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MongoDB\Driver\Manager::executeQuery

(mongodb >=1.0.0)

MongoDB\Driver\Manager::executeQueryExecute a database query

Descripción

final public MongoDB\Driver\Manager::executeQuery(string $namespace, MongoDB\Driver\Query $query, array|MongoDB\Driver\ReadPreference|null $options = null): MongoDB\Driver\Cursor

Selects a server according to the "readPreference" option and executes the query on that server.

Default values for the "readPreference" option and Query's "readConcern" option will be inferred from an active transaction (indicated by the "session" option), followed by the connection URI.

Parámetros

namespace (string)

Un espacio de nombres completamente cualificado (p. ej. "nombreBaseDatos.nombreColección").

query (MongoDB\Driver\Query)

La consulta a ejecutar.

options

options
Option Type Description
readPreference MongoDB\Driver\ReadPreference

Una preferencia de lectura a usar para seleccionar un servidor para la operación.

session MongoDB\Driver\Session

Una sesión a asociar con la operación.

Valores devueltos

Devuelve un MongoDB\Driver\Cursor en caso de éxito.

Errores/Excepciones

Historial de cambios

Versión Descripción
PECL mongodb 1.4.0 The third parameter is now an options array. For backwards compatibility, this paramater will still accept a MongoDB\Driver\ReadPreference object.

Ejemplos

Ejemplo #1 MongoDB\Driver\Manager::executeQuery() example

<?php

$manager
= new MongoDB\Driver\Manager("mongodb://localhost:27017");

$bulk = new MongoDB\Driver\BulkWrite;
$bulk->insert(['x' => 1]);
$bulk->insert(['x' => 2]);
$bulk->insert(['x' => 3]);
$manager->executeBulkWrite('db.collection', $bulk);

$filter = ['x' => ['$gt' => 1]];
$options = [
'projection' => ['_id' => 0],
'sort' => ['x' => -1],
];

$query = new MongoDB\Driver\Query($filter, $options);
$cursor = $manager->executeQuery('db.collection', $query);

foreach (
$cursor as $document) {
var_dump($document);
}

?>

El resultado del ejemplo sería:

object(stdClass)#6 (1) {
  ["x"]=>
  int(3)
}
object(stdClass)#7 (1) {
  ["x"]=>
  int(2)
}

Ejemplo #2 Limiting execution time for a query

The "maxTimeMS" MongoDB\Driver\Query option may be used to limit the execution time of a query. Note that this time limit is enforced on the server side and does not take network latency into account. See » Terminate Running Operations in the MongoDB manual for more information.

<?php

$manager
= new MongoDB\Driver\Manager('mongodb://localhost:27017');

$filter = ['x' => ['$gt' => 1]];
$options = [
'maxTimeMS' => 1000,
];

$query = new MongoDB\Driver\Query($filter, $options);
$cursor = $manager->executeQuery('db.collection', $query);

foreach (
$cursor as $document) {
var_dump($document);
}

?>

If the query fails to complete after one second of execution time on the server, a MongoDB\Driver\Exception\ExecutionTimeoutException will be thrown.

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