public void CreatePlantGroup(string gardenName, string plantGroupName, string accountID)
{
if (string.IsNullOrEmpty(gardenName))
{
throw new ArgumentException("message", nameof(gardenName));
}
if (plantGroupName == null)
{
throw new ArgumentNullException(nameof(plantGroupName));
}
Garden garden = GardenRepository.GetByName(gardenName, accountID);
PlantGroup plantGroup = new PlantGroup(plantGroupName);
PlantGroupRepository.CreatePlantGroup(garden, plantGroup, accountID);
garden.AddPlantGroup(plantGroup);
GardenRepository.AddPlantGroup(garden, plantGroup, accountID); //should be update
}