/// <inheritdoc/>
public Task <PagedIdNameViewModel> Handle(GetContinentsQuery request, CancellationToken cancellationToken)
{
var pageNumber = request.PageNumber;
var pageSize = request.PageSize;
GuardAgainst.LessThanOrEqualToZero(pageNumber, nameof(pageNumber));
GuardAgainst.LessThanOrEqualToZero(pageSize, nameof(pageSize));
return(_repository.GetContinents(pageNumber, pageSize)
.ContinueWith(t =>
{
GuardAgainst.FaultedOrCancelled(t);
var items = t.Result;
// would prefer to go parallel but entityframework doesn't support parallel operations against
// the same dbContext, at least EF6 doesn't
var count = _repository.GetTotalCountOfContinents().ResultIfGreaterThanZero(cancellationToken);
return new PagedIdNameViewModel
{
Count = count,
PageNumber = pageNumber,
PageSize = pageSize,
Items = items.Select(tuple => new IdNameViewModel {
Id = tuple.Id, Name = tuple.Name
}).ToList()
};
}, cancellationToken));
}