public static IEnumerable <Item> GetItems(GetItemsRequest request)
{
// If we don't have what we need to make this call, stop here.
if (request.Configuration == null)
{
throw new InvalidRequestException("ExigoService.GetItems() requires an OrderConfiguration.");
}
if (request.Configuration.CategoryID == 0 && !request.CategoryID.HasValue && !request.ItemCodes.Any())
{
throw new InvalidRequestException("ExigoService.GetItems() requires either a CategoryID or a collection of item codes.");
}
;
#region Categories
// Set some defaults
var topCategoryID = request.CategoryID ?? request.Configuration.CategoryID;
var categoryIDs = new List <int>()
{
topCategoryID
};
// Get all category ids underneath the request's category id
if (request.IncludeAllChildCategories)
{
var childCategoryIDs = GetChildCategoryIDs(topCategoryID);
categoryIDs.AddRange(childCategoryIDs);
}
// if no categories, stop here (this should never happen. included for consistency)
if (!categoryIDs.Any())
{
yield break;
}
#endregion
#region Item Codes
// If we requested specific categories, get the item codes in the categories
var itemCodes = new List <string>();
var hasCartItems = request.ShoppingCartItems.Any();
// if we have cart items, use those first
if (hasCartItems)
{
var parentItems = request.ShoppingCartItems
.ToList();
var parentItemCodes = parentItems
.Select(i => i.ItemCode)
.Distinct()
.ToList();
itemCodes.AddRange(parentItemCodes);
}
// get and/or filter itemcodes
else
{
var availableItemCodes = ExigoDAL.GetWebCategoryItemCodes(categoryIDs);
if (request.ItemCodes.Any())
{
// if we have no cart items, decide whether to restrict or not.
if (request.IgnoreCategoryRestrictions)
{
// If we're ignoring category restrictions, get the item codes requested only.
// (This should only be done for [dynamic/static] kit children. Items must still be available in the requested warehouse)
itemCodes.AddRange(request.ItemCodes);
}
else
{
// Default behavior: filter request item codes by the item codes available in the selected categories
var filteredItemCodes = availableItemCodes.Where(c => request.ItemCodes.Any(rc => rc == c));
itemCodes.AddRange(filteredItemCodes);
}
}
else
{
// if no item codes are requested, add all available item codes
itemCodes.AddRange(availableItemCodes);
}
}
// If we don't have any item codes, stop here. (This will happen if request.ItemCodes are not available in the categories requested)
if (!itemCodes.Any())
{
yield break;
}
#endregion
#region Items
// get the item information
var priceTypeID = (request.PriceTypeID.HasValue && request.PriceTypeID.Value > 0) ? request.PriceTypeID.Value : request.Configuration.PriceTypeID;
var items = GetItemInformation(new GetItemInformationRequest(request)
{
PriceTypeID = priceTypeID,
ItemCodes = itemCodes
});
// If we don't have any items, stop here.
if (!items.Any())
{
yield break;
}
#endregion
#region Additional Details
// Populate the group members and dynamic kits
PopulateAdditionalItemData(new PopulateAdditionalItemDataRequest(request)
{
Items = items,
WebCategoryIDs = categoryIDs
});
#endregion
// if we provided shopping cart items, return our items relative to our shoppingCartItems.
// (Note: This process will duplicate items if there were both order and autoorder items of the same code. This is necessary and expected.)
if (hasCartItems)
{
items = MergeShoppingCartItemDetailsWith <Item>(request.ShoppingCartItems, items).ToList();
}
// Return the data
foreach (var item in items)
{
yield return(item);
}
}