CollectionModify::arrayAppend

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    CollectionModify::arrayAppend — Append element to an array field

    Опис

    public mysql_xdevapi\CollectionModify::arrayAppend(string $collection_field, string $expression_or_literal): mysql_xdevapi\CollectionModify

    Add an element to a document's field, as multiple elements of a field are represented as an array. Unlike arrayInsert(), arrayAppend() always appends the new element at the end of the array, whereas arrayInsert() can define the location.

    Параметри

    collection_field

    The identifier of the field where the new element is inserted.

    expression_or_literal

    The new element to insert at the end of the document field array.

    Значення, що повертаються

    A CollectionModify object that can be used to execute the command, or to add additional operations.

    Приклади

    Приклад #1 mysql_xdevapi\CollectionModify::arrayAppend() 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": "Bernie",
    "traits": ["Friend", "Brother", "Human"]}'    )
    ->    execute();

    $collection
    ->modify("name in ('Bernie', 'Jane')")
    ->    arrayAppend('traits', 'Happy')
    ->    execute();

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

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

    Поданий вище приклад виведе щось схоже на:

    Array
(
    [0] => Array
        (
            [_id] => 00005b6b5361000000000000010c
            [name] => Bernie
            [traits] => Array
                (
                    [0] => Friend
                    [1] => Brother
                    [2] => Human
                    [3] => Happy
                )
        )
)

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