Creating default users and groups

CreateDefaultUser.php

<?php
use Migrations\AbstractMigration;

class CreateDefaultUser extends AbstractMigration
{
    /**
     * Change Method.
     *
     * More information on this method is available here:
     * http://docs.phinx.org/en/latest/migrations.html#the-change-method
     * @return void
     */
    public function up()
    {
        $adminGroupUUID = \Cake\Utility\Text::uuid();

        $api_key_plain = \Cake\Utility\Security::hash(\Cake\Utility\Security::randomBytes(32), 'sha256', false);

        $table = $this->table('cake_php_roles');
        $table->truncate();

        $data = [
            [
                'name' => \Identity\Factories\RoleFactory::ADMINISTRATORS_ROLE,
                'description' => 'Default Administrators Group',
                'uuid' => $adminGroupUUID
            ],
            [
                'name' => \Identity\Factories\RoleFactory::OPERATORS_ROLE,
                'description' => 'Default Operators Group',
                'uuid' => \Cake\Utility\Text::uuid(),
            ],
            [
                'name' => \Identity\Factories\RoleFactory::USERS_ROLE,
                'description' => 'Default Users Group',
                'uuid' => \Cake\Utility\Text::uuid(),
            ]
        ];

        $table->insert($data)->save();

        $groups = \Cake\ORM\TableRegistry::getTableLocator()->get('cake_php_roles');
        $groupID = $groups->find()->where(['uuid' => $adminGroupUUID])->select(['id'])->first();

        $userData = [
            'email' => 'admin@scms.dev',
            'password' => (new \Cake\Auth\DefaultPasswordHasher())->hash('pa$$word'),
            'role_id' => $groupID->id,
            'created' => \Cake\I18n\FrozenTime::now()->toDateTimeString(), //updated because has problem with mysql database timezone
            'modified' => \Cake\I18n\FrozenTime::now()->toDateTimeString(),
            'api_key_plain' => $api_key_plain,
            'api_key' => (new \Cake\Auth\DefaultPasswordHasher())->hash($api_key_plain)
        ];

        $userTable = $this->table('cake_php_users');
        $userTable->truncate();
        $userTable->insert($userData)->save();
    }

    public function down()
    {
        $table = $this->table('cake_php_roles');
        $table->truncate();

        $userTable = $this->table('cake_php_users');
        $userTable->truncate();
    }


}