Collection::replaceOne

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Collection::replaceOne — Replace one collection document

说明

public mysql_xdevapi\Collection::replaceOne ( string $id , string $doc ) : mysql_xdevapi\Result

Updates (or replaces) the document identified by ID, if it exists.

参数

id

ID of the document to replace or update. Typically this is the _id that was generated by MySQL Server when the record was added.

doc

Collection document to update or replace the document matching the id parameter.

This document can be either a document object or a valid JSON string describing the new document.

返回值

A Result object that can be used to query the number of affected items and the number warnings generated by the operation.

范例

Example #1 mysql_xdevapi\Collection::replaceOne() 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");

$result = $collection->add('{"name": "Alfred", "age": 18, "job": "Butler"}')->execute();

// Normally the _id is known by other means, 
// but for this example let's fetch the generated id and use it
$ids       = $result->getGeneratedIds();
$alfred_id = $ids[0];

// ...

$alfred = $collection->getOne($alfred_id);
$alfred['age'] = 81;
$alfred['job'] = 'Guru';

$collection->replaceOne($alfred_id, $alfred);

?>

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