Synnefo

            this.valid_predefined = _.select(

              _.map(this.predefined_flavors, function(flv, key){

                var existing = storage.flavors.get_flavor(flv.cpu, 

                                                          flv.ram, 

                                                          flv.disk, 

                                                          flv.disk_template, 

                                                          self.flavors);

                // quota check

                var quotas = synnefo.storage.quotas.get_available_for_vm();

                var unavailable_check = 

                  synnefo.storage.flavors.unavailable_values_for_quotas;

                var unavailable = unavailable_check(quotas, [existing]);

                if ((_.filter(unavailable, function(values, flvkey) {

                  return values.length > 0

                })).length > 0) {

                  return false;

                }