CollectionModify::limit

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CollectionModify::limitLimit number of modified documents

Description

public mysql_xdevapi\CollectionModify::limit ( integer $rows ) : mysql_xdevapi\CollectionModify

Limit the number of documents modified by this operation. Optionally combine with skip() to define an offset value.

Liste de paramètres

rows

The maximum number of documents to modify.

Valeurs de retour

A CollectionModify object.

Exemples

Exemple #1 mysql_xdevapi\CollectionModify::limit() example

<?php
$session 
mysql_xdevapi\getSession("mysqlx://user:password@localhost");
$session->sql("DROP DATABASE IF EXISTS addressbook")->execute();
$session->sql("CREATE DATABASE addressbook")->execute();

$schema     $session->getSchema("addressbook");
$collection $schema->createCollection("people");

$collection->add('{"name": "Fred",  "age": 21, "job": "Construction"}')->execute();
$collection->add('{"name": "Wilma", "age": 23, "job": "Teacher"}')->execute();
$collection->add('{"name": "Betty", "age": 24, "job": "Teacher"}')->execute();

$collection
  
->modify("job = :job")
  ->
bind(['job' => 'Teacher'])
  ->
set('job''Principal')
  ->
limit(1)
  ->
execute();

$result $collection
  
->find()
  ->
execute();

print_r($result->fetchAll());
?>

L'exemple ci-dessus va afficher quelque chose de similaire à :

Array
(
    [0] => Array
        (
            [_id] => 00005b6b53610000000000000118
            [age] => 21
            [job] => Construction
            [name] => Fred
        )
    [1] => Array
        (
            [_id] => 00005b6b53610000000000000119
            [age] => 23
            [job] => Principal
            [name] => Wilma
        )
    [2] => Array
        (
            [_id] => 00005b6b5361000000000000011a
            [age] => 24
            [job] => Teacher
            [name] => Betty
        )
)
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