public IActionResult AssignClub(CoachClubInputVM model)
 {
     for (var i = 0; i < model.Ids.Count(); i++)
     {
         var coachesClubs = new CoachClub
         {
             CoachId = model.CoachId,
             ClubId  = model.Ids[i]
         };
         _dataCoachClub.Add(coachesClubs);
     }
     return(RedirectToAction(nameof(Index)));
 }
        public IActionResult AssignClub(int id)
        {
            var coach = _dataCoach.Get(id);

            if (coach == null)
            {
                return(RedirectToAction("Error", "Home"));
            }
            var coachesClubs = _dataClub.GetByDetails().Select(x => new SelectListItem
            {
                Text  = x.Name,
                Value = x.Id.ToString()
            });
            CoachClubInputVM viewModel = new CoachClubInputVM
            {
                CoachId   = id,
                FirstName = coach.FirstName,
                LastName  = coach.LastName,
                Clubs     = coachesClubs.ToList()
            };

            return(View(viewModel));
        }