public IEnumerable <ValidationResult> Validate(ValidationContext validationContext)
{
if (StatusName.ToLower() != "confirmed" &&
StatusName.ToLower() != "pending" &&
StatusName.ToLower() != "canceled")
{
yield return(new ValidationResult("Status Name must be 'confirmed', 'pending' or 'canceled'"));
}
}
internal override ActionResult SetItemQuantity(int productId, int newQuantity)
{
return(new ActionResult(isSuccess: false, $"Cannot change item quantities on a {StatusName.ToLower()} sale"));
}
internal override ActionResult DeleteItem(int productId)
{
return(new ActionResult(isSuccess: false, $"Cannot delete items from a {StatusName.ToLower()} sale"));
}
internal override ActionResult Cancel()
{
return(new ActionResult(isSuccess: false, $"Cannot cancel a {StatusName.ToLower()} sale"));
}
internal override ActionResult AddPayment(Payment payment)
{
return(new ActionResult(isSuccess: false, $"Cannot add payment to a {StatusName.ToLower()} sale"));
}
internal override ActionResult AddItem(SaleItem newItem)
{
return(new ActionResult(isSuccess: false, $"Cannot add item to a {StatusName.ToLower()} sale"));
}
// No actions or transitions allowed from any final state so all actions return an unsuccessful ActionResult
internal override ActionResult AddChange(Change change)
{
return(new ActionResult(isSuccess: false, $"Cannot give change on a {StatusName.ToLower()} sale"));
}