symfony Timestampable

１）StofDoctrineExtensionsBundleをインストール

composer require stof/doctrine-extensions-bundle

２）Activating Timestampable

config

stof_doctrine_extensions:

    default_locale: ja_JP

    orm:

        default:

            timestampable: true

３）Entityに以下追加

<?php

namespace App\Entity;

use Doctrine\ORM\Mapping as ORM;

use Gedmo\Timestampable\Traits\TimestampableEntity;

class User implements UserInterface

{

    use TimestampableEntity;

......

４）bin/console make:migration

５）bin/console doctrine:migrations:migrate