def Save(self, data):
model = Group()
model.Id = data.Id
model.Name = data.Name
group = self.Get(model.Id)
status = self.Status(model, group)
if status is ModelStatus.New:
model.Id = None
model.save()
elif status is ModelStatus.Modified:
model.save()
for property in data.Properties.all():
property = self.__propertyRepo.Get(property.Id)
model.Properties.add(property)
return model
