public void Put(int id, GymClubDTO value)
        {
            GymClub model = IGymClubRepository.Get(id);

            if (value.Name != null)
            {
                model.Name = value.Name;
            }
            if (value.AddressId != 0)
            {
                model.AddressId = value.AddressId;
            }

            IGymClubRepository.Update(model);

            //trebuie sa putem face update si la lista de artisti si cantece

            if (value.ClassId != null)
            {
                IEnumerable <GymClubFitnessClass> MyGymClubClasses = IGymClubClassRepository.GetAll().Where(x => x.GymClubId == id);
                foreach (GymClubFitnessClass MyGymClubClass in MyGymClubClasses)
                {
                    IGymClubClassRepository.Delete(MyGymClubClass);
                }
                for (int i = 0; i < value.ClassId.Count; i++)
                {
                    GymClubFitnessClass GymClubClass = new GymClubFitnessClass()
                    {
                        GymClubId      = model.Id,
                        FitnessClassId = value.ClassId[i]
                    };
                    IGymClubClassRepository.Create(GymClubClass);
                }
            }
        }
        public void Post(GymClubDTO value)
        {
            GymClub model = new GymClub()
            {
                Name      = value.Name,
                AddressId = value.AddressId,
            };

            IGymClubRepository.Create(model); // am creat un album

            // trebuie sa introducem si in tabela de intersectie
            for (int i = 0; i < value.ClassId.Count; i++)
            {
                GymClubFitnessClass GymClubClass = new GymClubFitnessClass()
                {
                    GymClubId      = model.Id,
                    FitnessClassId = value.ClassId[i]
                };
                IGymClubClassRepository.Create(GymClubClass);
            }
        }