public ExternalAccount getOrCreateExternalAccount(
UserViewpoint viewpoint, ExternalAccountType type) {
Account a = viewpoint.getViewer().getAccount();
if (!em.contains(a))
throw new RuntimeException("detached account in getOrCreateExternalAccount");
ExternalAccount external = a.getExternalAccount(type);
if (external == null) {
external = new ExternalAccount(type);
external.setAccount(a);
em.persist(external);
a.getExternalAccounts().add(external);
notifier.onExternalAccountCreated(a.getOwner(), external);
}
return external;
}
