/// <summary>
/// Validates this instance. Special validation case: item/quantity combination should be unique.
/// </summary>
/// <returns></returns>
public bool Validate()
{
bool result;
InnerItem.Validate();
if (InnerItem.List <= 0)
{
InnerItem.SetError("List", "List Price must be greater than 0".Localize(), true);
}
else
{
InnerItem.ClearError("List");
}
// validate duplicates in preloaded prices
var preloadedPrices = (ObservableCollection <Price>)_preloadedItems;
result = !preloadedPrices.Any(x => x.PriceId != InnerItem.PriceId && x.ItemId == InnerItem.ItemId && x.MinQuantity == InnerItem.MinQuantity);
if (result)
{
using (var repository = _repositoryFactory.GetRepositoryInstance())
{
// query for price duplicate in repository
var priceFromRepository = repository.Prices.Where(x => x.PricelistId == InnerItem.PricelistId && x.PriceId != InnerItem.PriceId && x.ItemId == InnerItem.ItemId && x.MinQuantity == InnerItem.MinQuantity).FirstOrDefault();
if (priceFromRepository != null)
{
// check if duplicate price in repository was updated locally
var localPriceExistsAndItsValid = preloadedPrices.Any(x => x.PriceId == priceFromRepository.PriceId);
if (!localPriceExistsAndItsValid)
{
// duplicate price exists in repository but not locally
result = false;
}
}
}
}
if (result)
{
InnerItem.ClearError("MinQuantity");
}
else
{
InnerItem.SetError("MinQuantity", "This pricelist already contains this item with the same quantity".Localize(), true);
}
result = InnerItem.Errors.Count == 0;
return(result);
}
