public async Task <IActionResult> Classes()
        {
            var user = await _userManager.GetUserAsync(User);

            //Change to days, but for now use seconds
            var diffInDays = (System.DateTime.Now - user.LastModified).TotalDays;


            if ((!User.IsInRole("Admin") && diffInDays > 180) || user.LastModified == null)
            {
                return(Redirect("/Account/UpdateAddress"));
            }

            var ceClasses = _repo.GetAllClasses();

            return(View(ceClasses));
        }