Here is a question about bulk insert.
Right after $bulk->insert, i see an MongoDB\BSON\ObjectId retrieved instantly. So how to ensure the ObjectId’s uniqueness? Is bulk_write asking for and ObjectId every time?
MongoDB\Driver\BulkWrite::insert
(mongodb >=1.0.0)
MongoDB\Driver\BulkWrite::insert — Add an insert operation to the bulk
Beschreibung
Adds an insert operation to the MongoDB\Driver\BulkWrite.
Rückgabewerte
Returns the _id of the inserted document. If the
document did not have an _id, the
MongoDB\BSON\ObjectId generated for the insert will
be returned.
Fehler/Exceptions
- Wirft eine MongoDB\Driver\Exception\InvalidArgumentException, wenn beim Analysieren von Argumenten ein Fehler auftritt.
Changelog
| Version | Beschreibung |
|---|---|
| PECL mongodb 1.3.0 |
The _id of the inserted document is always returned.
Previously, the method only returned a value if a
MongoDB\BSON\ObjectId was generated.
|
Beispiele
Beispiel #1 MongoDB\Driver\BulkWrite::insert() example
<?php
$bulk = new MongoDB\Driver\BulkWrite;
$document1 = ['title' => 'one'];
$document2 = ['_id' => 'custom ID', 'title' => 'two'];
$document3 = ['_id' => new MongoDB\BSON\ObjectId, 'title' => 'three'];
$_id1 = $bulk->insert($document1);
$_id2 = $bulk->insert($document2);
$_id3 = $bulk->insert($document3);
var_dump($_id1, $_id2, $_id3);
$manager = new MongoDB\Driver\Manager('mongodb://localhost:27017');
$result = $manager->executeBulkWrite('db.collection', $bulk);
?>Das oben gezeigte Beispiel erzeugt eine ähnliche Ausgabe wie:
object(MongoDB\BSON\ObjectId)#3 (1) {
["oid"]=>
string(24) "54d51146bd21b91405401d92"
}
NULL
NULL
Siehe auch
- MongoDB\Driver\Manager::executeBulkWrite() - Execute one or more write operations
- MongoDB\Driver\WriteResult
- MongoDB\BSON\ObjectId
- MongoDB\BSON\Persistable
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yedemon at 163 dot com ¶
5 years ago
