public async Task <IActionResult> PublicPresentationsByCategory(string categoryName, int?page, int?itemsPerPage)
{
string excludedUserId = null;
if (this.User != null && this.User.Identity.IsAuthenticated)
{
excludedUserId = _userManager.GetUserId(this.User);
}
var vm = new PresentationsViewModel();
vm.NavbarIndexPair = defaultNavbarIndexPair;
vm.Title = categoryName.ToUpper();
vm.ButtonsToolbarModel = ButtonsToolbarModel.PublicModelWithHighlightedIndex(ButtonsToolbarModel.IndexOf(categoryName));
var pagingOptions = PagingOptions.CreateWithTheseOrDefaults(page, itemsPerPage);
var presentationsResult = await _presentationsRepository.PublicPresentationsFromCategory(categoryName, pagingOptions,
excludedUserId);
if (presentationsResult.ErrorMessageIfAny != null)
{
vm.ErrorMessage = presentationsResult.ErrorMessageIfAny;
return(DisplayPublicListPage(vm));
}
if (presentationsResult.Value.Count == 0)
{
vm.TopMessage = $"There is no public presentation under the category {categoryName}. Be the first to upload one!";
vm.TopMessageHref = $"/{nameof(HomeController).WithoutControllerPart()}/{nameof(HomeController.UploadPresentation)}";
return(DisplayPublicListPage(vm));
}
vm.PaginationModel = PaginationViewModel.BuildModelWith(presentationsResult.TotalPages, pagingOptions, i =>
$"{nameof(ExploreController).WithoutControllerPart()}/{nameof(ExploreController.PublicPresentationsByCategory)}" +
$"?categoryName={categoryName}&page={i}&itemsPerPage={pagingOptions.ItemsPerPage}");
vm.TopMessage = $"Public presentations in the {categoryName} category, page {pagingOptions.PageIndex} of {presentationsResult.TotalPages}";
vm.Presentations = await CreateCardsModel(presentationsResult.Value);
return(DisplayPublicListPage(vm));
}
public async Task <IActionResult> PublicPresentations(int?page, int?itemsPerPage)
{
var pagingOptions = PagingOptions.CreateWithTheseOrDefaults(page, itemsPerPage);
var vm = new PresentationsViewModel();
vm.NavbarIndexPair = defaultNavbarIndexPair;
string excludedUserId = null;
if (this.User != null)
{
excludedUserId = _userManager.GetUserId(this.User);
}
var presentations = await _presentationsRepository.PublicPresentations(pagingOptions, excludedUserId);
if (presentations.ErrorMessageIfAny != null)
{
vm.ErrorMessage = presentations.ErrorMessageIfAny;
return(base.DisplayListPage(vm));
}
if (presentations.Value.Count == 0)
{
vm.TopMessage = "There are no other public presentations. Click here to view your own public presentations";
vm.TopMessageHref = "/" + nameof(HomeController).WithoutControllerPart() + "/" + nameof(HomeController.MyPresentations);
return(base.DisplayListPage(vm));
}
vm.PaginationModel = PaginationViewModel.BuildModelWith(presentations.TotalPages, pagingOptions,
index => "/" + nameof(ExploreController).WithoutControllerPart() + "/" + nameof(ExploreController.PublicPresentations) +
"?page=" + index + "&itemsPerPage=" + pagingOptions.ItemsPerPage);
vm.Presentations = await base.CreateCardsModel(presentations.Value);
vm.Title = "Public Presentations";
vm.TopMessage = $"Displaying public presentations, {(presentations.TotalPages > 0 ? presentations.TotalPages : 1)} pages in total";
vm.ButtonsToolbarModel = ButtonsToolbarModel.PublicModelWithHighlightedIndex(0);
return(DisplayPublicListPage(vm));
}