public IActionResult RentableBookItem(string barcode)
{
if (string.IsNullOrEmpty(barcode))
{
return(Content(""));
}
var inventoryItem = _inventoryProvider.FindInventoryItemByBarcode <Book>(barcode);
if (inventoryItem == null)
{
inventoryItem = _inventoryProvider.FindInventoryItemByExternalId <Book>(barcode);
}
//TODO: write proper error handling, with error message on client site
if (inventoryItem == null)
{
return(Content(""));
}
//TODO: show error if book is allready rented by someone else
return(PartialView("_RentInventoryItem", inventoryItem));
}