private void SeedRatings()
{
if (!Ratings.Any() || _context.Ratings.Any())
{
return;
}
_context.Ratings.AddRange(Ratings);
}
public double GetAverageRating()
{
if (!Ratings.Any())
{
return(0);
}
return(Ratings.Average(r => r.Rating));
}
public void AddRating(User user, decimal value, string comment)
{
if (Ratings == null)
{
Ratings = new List <Rating>();
}
if (Ratings.Any(r => r.UserId == user.Id))
{
throw SheaftException.Validation("Vous avez déjà noté ce produit.");
}
Ratings.Add(new Rating(Guid.NewGuid(), value, user, comment));
RefreshRatings();
}
private void RefreshRatings()
{
Rating = Ratings.Any() ? Ratings.Average(r => r.Value) : (decimal?)null;
RatingsCount = Ratings.Count;
}
private bool HasUserWrittenRating(int userId)
{
return(Ratings.Any(rat => rat.UserId == userId));
}