public string Rating(int? id, int? score) { Article a = null; int Uid = Autorizacija.Autorizacija.GetCurrentUser(this.HttpContext).UserID; string rating = ""; if (id.HasValue && score.HasValue) { using (DBBL Baza = new DBBL()) { ArticlesRating ar = new ArticlesRating() { ArticlesID = id.Value, UserID = Uid, GUID = Guid.NewGuid(), DateRating = DateTime.Now, Score = score }; try { Baza.AddRating(ar); } catch (Exception) { return "False"; } a = Baza.GetWikiByID(id.Value); int suma = 0; foreach (var rat in a.ArticlesRatings.ToList()) { suma += rat.Score.Value; } rating = (suma / a.ArticlesRatings.Count).ToString(); } } return rating; }