public async Task <IActionResult> Index(int?page)
{
var problemList = await _problemRepository.GetAllAsync();
var goodList = new List <Problem>();
if (User.Identity.Name == null || !User.IsInRole("Admin"))
{
//we don't have an admin, show only the visible problem
goodList = problemList.Where(prob => prob.Visible == true).ToList();
}
else
{
goodList = problemList.ToList();
}
int pageSize = 20;
return(View(PaginatedList <Problem> .CreateAsync(goodList, page ?? 1, pageSize)));
}