MongoDB\Driver\WriteResult::getModifiedCount
(mongodb >=1.0.0)
MongoDB\Driver\WriteResult::getModifiedCount — Returns the number of existing documents updated
Açıklama
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().
Bağımsız Değişkenler
Bu işlevin bağımsız değişkeni yoktur.
Dönen Değerler
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.
Hatalar/İstisnalar
- Throws MongoDB\Driver\Exception\InvalidArgumentException on argument parsing errors.
Örnekler
Örnek 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());
?>Yukarıdaki örneğin çıktısı:
int(1)
Ayrıca Bakınız
- MongoDB\Driver\WriteResult::getMatchedCount() - Returns the number of documents selected for update
- MongoDB\Driver\WriteResult::isAcknowledged() - Returns whether the write was acknowledged
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