public ActionResult New()
        {
            var schools   = _context.Schools.ToList();
            var groups    = _context.Groups.ToList();
            var viewModel = new ChildFormViewModel
            {
                Child   = new Child(),
                Schools = schools,
                Groups  = groups,
            };

            return(View("ChildForm", viewModel));
        }
        public ActionResult Edit(int id)
        {
            var child     = _context.Children.SingleOrDefault(c => c.Id == id);
            var viewModel = new ChildFormViewModel
            {
                Child   = child,
                Schools = _context.Schools.ToList(),
                Groups  = _context.Groups.ToList(),
            };

            if (child == null)
            {
                return(HttpNotFound());
            }

            return(View("ChildForm", viewModel));
        }