private Food parseFoodDTO(FoodDTO dto)
{
int calories = 0;
double sugar = 0;
double fat = 0;
double saturates = 0;
double salt = 0;
dto.Name = dto.Name.Trim();
dto.Description = dto.Description.Trim();
if(dto.Calories != "" && !int.TryParse(dto.Calories, out calories))
{
throw new ValidationException("Calories is not a number.");
}
if (dto.Sugar != "" && !double.TryParse(dto.Sugar, out sugar))
{
throw new ValidationException("Sugar is not a number.");
}
if (dto.Fat != "" && !double.TryParse(dto.Fat, out fat))
{
throw new ValidationException("Fat is not a number.");
}
if (dto.Saturates != "" && !double.TryParse(dto.Saturates, out saturates))
{
throw new ValidationException("Saturates is not a number.");
}
if (dto.Salt != "" && !double.TryParse(dto.Salt, out salt))
{
throw new ValidationException("Salt is not a number.");
}
return new Food()
{
Name = dto.Name,
Category = dto.Category,
Description = dto.Description,
Calories = calories,
Sugars = sugar,
Fat = fat,
Saturates = saturates,
Salt = salt
};
}
public FoodDTO GetInputs()
{
FoodDTO dto = new FoodDTO()
{
Name = FoodItemView.FoodName,
Category = FoodItemView.Category,
Description = FoodItemView.Description,
Calories = FoodItemView.Calories,
Sugar = FoodItemView.Sugar,
Fat = FoodItemView.Fat,
Saturates = FoodItemView.SatFat,
Salt = FoodItemView.Salt
};
return dto;
}
public Food AddFood(FoodDTO dto)
{
Food newFood = parseFoodDTO(dto);
Validator.ValidateObject(newFood, new ValidationContext(newFood), true);
//Check the food doesn't already exist in the database
if (UnitOfWork.FoodRepository.GetAll().Where(x => x.Name.ToLower().Equals(newFood.Name.ToLower())).Any())
{
throw new ValidationException("This food already exists.");
}
//Add the food to the database
UnitOfWork.FoodRepository.Add(newFood);
UnitOfWork.Save();
return newFood;
}
public void EditFood(FoodDTO dto, Food food)
{
Food editedFood = parseFoodDTO(dto);
Validator.ValidateObject(editedFood, new ValidationContext(editedFood), true);
//if the name has changed check that there isn't an existing food with the new name
if(dto.Name.ToLower() != food.Name.ToLower() && UnitOfWork.FoodRepository.GetAll().Where(x => x.Name.ToLower().Equals(dto.Name.ToLower())).Any())
{
throw new ValidationException("A food with this name already exists.");
}
food.Update(editedFood);
//Add the food to the database
UnitOfWork.FoodRepository.Edit(food);
UnitOfWork.Save();
}
