MongoDB\Driver\WriteResult::getModifiedCount

(mongodb >=1.0.0)

MongoDB\Driver\WriteResult::getModifiedCountReturns the number of existing documents updated

Opis

final public MongoDB\Driver\WriteResult::getModifiedCount ( void ) : integer|null

If the update operation results in no change to the document (e.g. setting the value of a field to its current value), the modified count may be less than the value returned by MongoDB\Driver\WriteResult::getMatchedCount().

Parametry

Ta funkcja nie posiada parametrów.

Zwracane wartości

Returns the number of existing documents updated, or NULL if the write was not acknowledged.

The modified count is not available on versions of MongoDB before 2.6, which used the legacy wire protocol version (i.e. OP_UPDATE). If this is the case, the modified count will also be NULL.

Błędy/Wyjątki

Przykłady

Przykład #1 MongoDB\Driver\WriteResult::getModifiedCount() example

<?php

$manager 
= new MongoDB\Driver\Manager;

$bulk = new MongoDB\Driver\BulkWrite;
$bulk->insert(['x' => 1]);
$bulk->update(['x' => 1], ['$set' => ['y' => 3]]);
$bulk->update(['x' => 2], ['$set' => ['y' => 1]], ['upsert' => true]);
$bulk->update(['x' => 3], ['$set' => ['y' => 2]], ['upsert' => true]);
$bulk->delete(['x' => 1]);

$result $manager->executeBulkWrite('db.collection'$bulk);

var_dump($result->getModifiedCount());

?>

Powyższy przykład wyświetli:

int(1)

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