public bool AddFavCities(string token, int city) { var userService = new UserService(); var user = userService.Authenticate(token); if (user != null) { var cities = dataService.GetAllCities(); if (cities.Any(c => c.Id == city)) { dataService.AddFavCities(new FavCities { UserId = user.Id, OriginCityId = city }); return(true); } else { return(false); } } else { return(false); } }