// GET: AdminPanel
public async Task <IActionResult> Index(
int?contestId,
int?nominationId,
int page = 1,
PostsSortState sortOrder = PostsSortState.RatingAsc)
{
int pageSize = 10;
IQueryable <Post> posts = _context.Posts
.Where(x => x.ContestId == contestId)
.Include(x => x.Author)
.Include(x => x.Likes)
.Include(x => x.Nomination);
//Фильтрация
if (nominationId != null && nominationId != 0)
{
posts = posts.Where(x => x.NominationId == nominationId);
}
//Сортировка
switch (sortOrder)
{
case PostsSortState.RatingAsc:
posts = posts.OrderBy(x => x.Rating);
break;
case PostsSortState.RatingDesc:
posts = posts.OrderByDescending(x => x.Rating);
break;
case PostsSortState.NameAsc:
posts = posts.OrderBy(x => x.Title);
break;
case PostsSortState.NameDesc:
posts = posts.OrderByDescending(x => x.Title);
break;
}
//Пагинация
var count = await posts.CountAsync();
var items = await posts.Skip((page - 1) *pageSize).Take(pageSize).ToListAsync();
PostsIndexViewModel viewModel = new PostsIndexViewModel()
{
PageViewModel = new PostsPageViewModel(count, page, pageSize),
SortViewModel = new PostsSortViewModel(sortOrder),
FilterViewModel = new PostFilterViewModel(_context.Nominations.Where(x => x.ContestId == contestId).ToList(), nominationId),
Posts = items,
HelpNamePost = new Post()
};
ViewBag.ContestId = contestId;
ViewBag.ContestName = _context.Contests.FirstOrDefaultAsync(x => x.Id == contestId).Result.Name;
return(View(viewModel));
}
} // текущее значение сортировки
public PostsSortViewModel(PostsSortState sortOrder)
{
NameSort = sortOrder == PostsSortState.NameAsc ? PostsSortState.NameDesc : PostsSortState.NameAsc;
RatingSort = sortOrder == PostsSortState.RatingAsc ? PostsSortState.RatingDesc : PostsSortState.RatingAsc;
Current = sortOrder;
}