TalkFormat format = TalkFormat.find.byId(id);
if (format != null && format.getEvent().equals(getEvent())) {
for (Proposal proposal : new ArrayList<Proposal>(format.getProposals())) {
format.getProposals().remove(proposal);
}
format.saveManyToManyAssociations("proposals");
format.delete();
}
// HTTP 204 en cas de succès (NO CONTENT)
return noContent();
}