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day17(?)の今日はエンティティ・モデルのデータに更新があるか(UPDATE文を発行する必要があるか)チェックする方法を見ていきます。

Doctrine

<?php

declare(strict_types=1);

use App\Entity\Book;
use Doctrine\ORM\EntityManagerInterface;

require __DIR__.'/../vendor/autoload.php';

/** @var EntityManagerInterface $entityManager */
$entityManager = require __DIR__.'/bootstrap.php';

$book1 = $entityManager->getRepository(Book::class)->find(1);
$book1->setTitle('Symfony6 The Fast Track');

$entityManager->getUnitOfWork()->computeChangeSets();
if ($entityManager->getUnitOfWork()->isEntityScheduled($book1)) {
    echo 'dirty!'.PHP_EOL;
} else {
    echo 'not dirty!'.PHP_EOL;
}

https://github.com/77web/doctrine-vs-eloquent/blob/26769edf7f4874a14870758fd3272a7c844cae69/Doctrine/Usecase/check_if_dirty.php

  • EntityManagerのUnitOfWorkを使い、チェンジセットを計算させて、更新(UPDATE)が必要な状態かどうかを確認します。

Eloquent

<?php

declare(strict_types=1);

use App\Models\Book;

require __DIR__.'/../vendor/autoload.php';
require __DIR__.'/bootstrap.php';

/** @var Book $book1 */
$book1 = Book::find(1);
$book1->title = 'Symfony6 The Fast Track';

if ($book1->isDirty()) {
    echo 'dirty!'.PHP_EOL;
} else {
    echo 'not dirty!'.PHP_EOL;
}

https://github.com/77web/doctrine-vs-eloquent/blob/26769edf7f4874a14870758fd3272a7c844cae69/Eloquent/Usecase/check_if_dirty.php

  • モデルの isDirty() メソッドを呼ぶだけでできます
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