Re: Business rules and filtering
Re: Business rules and filtering
- Subject: Re: Business rules and filtering
- From: Pascal Robert <email@hidden>
- Date: Thu, 14 Feb 2013 08:00:32 -0500
Le 2013-02-14 à 07:52, Maik Musall <email@hidden> a écrit :
>
> Am 14.02.2013 um 13:38 schrieb Pascal Robert <email@hidden>:
>
>> Hi guys,
>>
>> In a shopping cart, how would you apply discount based on business rules? For example, if someone buy a quantity of 3 of the same item, you apply discount X, or if an item is ordered before a certain date, you apply discount Y. Yes, I can do that all in code, but that's not very flexible.
>>
>> Any ideas?
>
> Add an abstraction layer for shopping cart items and add virtual items to the cart that contain the calculated rebate?
If I understand well, let's say I have "item.quantity()" with a value of 2. I then would have another EO related to this item for each quantity that a discount should be applied to.
For example, item's name is "WOWODC 2013 ticket" and someone wants to buy two tickets. In "VirtualItem", I would have multiple rows for "WOWODC 2013 ticket", with a different quantity and discount for each row, so I would do a fetch « VirtualItem.NAME.eq("WOWODC 2013 ticket").and(VirtualItem.QUANTITY(2) » and apply the discount from the fetched row.
(this is just an example, I wouldn't do the qualifier on the name of the product, it will be a relationship instead).
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Webobjects-dev mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden