I am trying to develop a solution which includes a special offer Mix'N'Match functionality. That is to say where customer buys three specific items they get a discount.
I have used a collection to ensure all items are there, but struggling where multiple items are involved, for instance orders 2 of 2 items and three of another, should get the discount offer applied for two of these but pay full price for the third.
Is anyone aware of an algorithm I could use, or perhaps a Design Pattern which is ideal for this situation.
Thanks.
Stuart
I have used a collection to ensure all items are there, but struggling where multiple items are involved, for instance orders 2 of 2 items and three of another, should get the discount offer applied for two of these but pay full price for the third.
Is anyone aware of an algorithm I could use, or perhaps a Design Pattern which is ideal for this situation.
Thanks.
Stuart
