//TODO: sort by
//TODO: pagination
public async Task <IActionResult> Featured(
SchoolingEventFilterViewModel filter,
[FromQuery(Name = "TagValues[]")] IEnumerable <string> tagValues,
SchoolingEventSortType sort,
int page = 0,
int pageSize = 10)
{
filter.TagValues = tagValues;
var entities = await _schoolingEventService.GetFeaturedEvents(filter, sort, page, pageSize);
return(Response(entities));
}
public async Task <IEnumerable <FeaturedSchoolingEventViewModel> > GetFeaturedEvents(SchoolingEventFilterViewModel filter, SchoolingEventSortType sort, int page, int pageSize)
{
var featuredEventsQuery = _schoolingEventRepository
.GetAll()
.Where(e => e.IsPublic);
if (filter != null)
{
featuredEventsQuery = ApplyFilters(featuredEventsQuery, filter);
}
if (sort != SchoolingEventSortType.None)
{
featuredEventsQuery = ApplySort(featuredEventsQuery, sort);
}
featuredEventsQuery = featuredEventsQuery
.Skip(page * pageSize)
.Take(pageSize);
var vm = await featuredEventsQuery.ProjectTo <FeaturedSchoolingEventViewModel>().ToListAsync();
if (_user.IsAuthenticated())
{
var currentUserId = _user.Id;
foreach (var eventViewModel in vm)
{
eventViewModel.IsFollowing = await _schoolingEventRepository.IsUserFollowingEvent(currentUserId, eventViewModel.Id);
eventViewModel.HasCreated = eventViewModel.CreatedByUserId == _user.Id;
}
}
return(vm);
}
private IQueryable <SchoolingEvent> ApplySort(IQueryable <SchoolingEvent> query, SchoolingEventSortType sort)
{
Expression <Func <SchoolingEvent, decimal> > minTicketPricePredicate = e => e.AvailableTickets.Any() ? e.AvailableTickets.Min(t => t.Price) : decimal.MaxValue;
switch (sort)
{
case SchoolingEventSortType.TicketPriceAscending:
query = query.OrderBy(minTicketPricePredicate);
break;
case SchoolingEventSortType.TicketPriceDescending:
query = query.OrderByDescending(minTicketPricePredicate);
break;
}
return(query);
}
