func (s *Service) RegisterResource(res kit.Resource) {
if res.Backend() == nil {
if s.defaultBackend == nil {
s.registry.Logger().Panic("Registering resource without backend, but no default backend set on resources.Service")
}
s.defaultBackend.RegisterModel(res.Model())
res.SetBackend(s.defaultBackend)
}
if res.Collection() == "" {
s.registry.Logger().Panic("Registering resource without a model type")
}
s.resources[res.Collection()] = res
}