public async Task <List <BasketItemViewModel> > GetBasketItems(IReadOnlyCollection <BasketItem> basketItems)
{
var catalogItemsSpecification = new CatalogItemsSpecification(basketItems.Select(b => b.CatalogItemId).ToArray());
var catalogItems = await _itemRepository.ListAsync(catalogItemsSpecification);
var items = basketItems.Select(basketItem =>
{
var catalogItem = catalogItems.FirstOrDefault(c => c.id == basketItem.CatalogItemId);
//if basketItem.CatalogItemId == catalogItem.id make a basketViewModel out of both and return it
var basketItemViewModel = new BasketItemViewModel
{
Id = basketItem.id,
CatalogItemId = basketItem.CatalogItemId,
ProductName = catalogItem.Name,
Quantity = basketItem.Quantity,
UnitPrice = basketItem.UnitPrice,
PictureUri = _uriComposer.ComposePictureUri(catalogItem.PictureUri)
};
return(basketItemViewModel);
}).ToList();
return(items);
}
public async Task <CatalogIndexViewModel> GetCatalogItems(int pageIndex, int itemsPage, int?brandId, int?typeId)
{ // pageIndex is current page
_logger.LogInformation("GetCatalogItems called");
var filterSpecification = new CatalogFilterSpecification(brandId, typeId); // this contains all catalogitems with matching brand&type ids
var filterPaginatedSpecifition = new CatalogFilterPaginatedSpecification(itemsPage * pageIndex, itemsPage, brandId, typeId); // this contains all catalogItem per page
var itemsPerPage = await _itemRepository.ListAsync(filterPaginatedSpecifition);
var totalItems = await _itemRepository.CountAsync(filterSpecification);
var vm = new CatalogIndexViewModel()
{
catalogItems = itemsPerPage.Select(i => new CatalogItemViewModel()
{
id = i.id,
name = i.Name,
pictureUri = _uriComposer.ComposePictureUri(i.PictureUri),
price = i.Price
}).ToList(),
//for List<SelectListItem> brands
brands = (List <SelectListItem>) await GetBrands(), // this is an explicit cast
types = (List <SelectListItem>) await GetTypes(),
brandFilterApplied = brandId ?? 0, // if brandId not null pass it, else pass 0
typeFilterApplied = typeId ?? 0,
paginationInfo = new PaginationInfoViewModel()
{
totalItems = totalItems,
itemsPerPage = itemsPerPage.Count,
actualPage = pageIndex,
totalPages = int.Parse(Math.Ceiling((decimal)totalItems / itemsPerPage.Count).ToString())
// string next and previous are defined seperately below
}
};
// "is-disabled" will be render into HTML that disables next/previous button
vm.paginationInfo.next = (vm.paginationInfo.actualPage == vm.paginationInfo.totalPages - 1) ? "is-disabled" : "";
vm.paginationInfo.previous = (vm.paginationInfo.actualPage == 0) ? "is-disabled" : "";
return(vm);
}
