public IActionResult Index(ListenersFilterViewModel filterModel, int page)
{
ListenersFilterViewModel filter = HttpContext.Session.Get <ListenersFilterViewModel>(filterKey);
if (filter != null)
{
filter.Name = filterModel.Name;
filter.Age = filterModel.Age;
filter.FromDate = filterModel.FromDate;
filter.ToDate = filterModel.ToDate;
HttpContext.Session.Remove(filterKey);
HttpContext.Session.Set(filterKey, filter);
}
return(RedirectToAction("Index", new { page }));
}
// GET: Listeners
public async Task <IActionResult> Index(SortState sortState = SortState.ListinersNameAsc, int page = 1)
{
ListenersFilterViewModel filter = HttpContext.Session.Get <ListenersFilterViewModel>(filterKey);
if (filter == null)
{
filter = new ListenersFilterViewModel
{
Name = string.Empty,
Age = null,
FromDate = null,
ToDate = null
};
HttpContext.Session.Set(filterKey, filter);
}
string key = $"{typeof(Listener).Name}-{page}-{sortState}-{filter.Name}-{filter.Age}-{filter.FromDate}-{filter.ToDate}";
if (!_cache.TryGetValue(key, out ListinerViewModel model))
{
model = new ListinerViewModel();
IQueryable <Listener> listeners = GetSortedListeners(sortState, filter.Name, filter.Age, filter.FromDate, filter.ToDate);
int count = listeners.Count();
model.PageViewModel = new PageViewModel(page, count, pageSize);
model.Listeners = count == 0
? new List <Listener>()
: listeners.Skip((model.PageViewModel.PageIndex - 1) * pageSize).Take(pageSize).ToList();
model.SortViewModel = new SortViewModel(sortState);
model.ListenersFilterViewModel = filter;
_cache.Set(key, model);
}
return(View(model));
}
