public async Task <IActionResult> Index()
{
var model = new ManageCollectionsViewModel();
var collections = new List <CollectionSummary>();
var collectionYears = await _collectionsService.GetAvailableCollectionYears();
foreach (var collectionYear in collectionYears)
{
var collectionSummaries = await _collectionsService.GetAllCollectionSummariesForYear(collectionYear);
collections.AddRange(collectionSummaries);
}
model.Collections = collections;
return(View("Index", model));
}