public async Task RemoveProductAsync(Athlete athlete, AthleteProduct product)
{
_context.Athletes.Attach(athlete);
athlete.AthleteProducts.Remove(product);
await _context.SaveChangesAsync();
}
public async Task AddAsync(int userId, int productId, double weight)
{
var athlete = await _athleteRepository.FindByCondition(condition : a => a.UserId == userId,
include : source => source.Include(a => a.AthleteProducts.Where(ap => ap.ProductId == productId)));
if (athlete is null)
{
throw new AthleteNotFoundException(userId);
}
var product = await _productRepository.GetOrFailAsync(productId);
athlete.AthleteProducts.Add(AthleteProduct.Create(athlete, product, weight));
await UpdateDietStats(athlete, userId, product, weight, '+', DateTime.Today);
}