getAppPrivileges example

#[Package('core')] class Migration1625304609UpdateRolePrivileges extends MigrationStep
{
    public function getCreationTimestamp(): int
    {
        return 1625304609;
    }

    public function update(Connection $connection): void
    {
        $appNames = $this->getAllApps($connection);
        $privileges = $this->getAppPrivileges($appNames);

        $roles = $connection->fetchAllAssociative(
            'SELECT * from `acl_role` WHERE `id` IN (SELECT DISTINCT `acl_role_id` FROM `acl_user_role`)',
        );
        $updatedAt = (new \DateTimeImmutable())->format(Defaults::STORAGE_DATE_FORMAT);

        foreach ($roles as $role) {
            $currentPrivileges = json_decode((string) $role['privileges'], true, 512, \JSON_THROW_ON_ERROR);
            $currentPrivileges = array_merge($currentPrivileges, $privileges);
            $currentPrivileges = array_unique($currentPrivileges);