private function init()
{
// Setup initial graph
$this->clearDb();
$user = new User('ikwattro');
$role = new SecurityRole('view_pages');
foreach (['wood', 'stone', 'water', 'sun', 'coat'] as $res) {
$resource = new ResourceModel($res);
$this->em->persist($resource);
}
$user->addRole($role);
$this->em->persist($user);
$this->em->flush();
$this->em->clear();
}
