Thanks Jon. I will look into your suggestion. Right now, the catalog is set (remember this is just a test for me... playing aorund with carts) so I guess it would be nice to refer the pieces by through the name...
thanks for that idea. I will keep playing around. Mike ----- Original Message ----- From: "Jon Hall" <[EMAIL PROTECTED]> To: "CF-Talk" <[EMAIL PROTECTED]> Sent: Sunday, April 28, 2002 7:28 PM Subject: Re: Shopping Cart Opinions > Are you planning on implementing item options in this cart? Let's say > you are selling a PC that comes with 128MB, 256MB, or 512MB of RAM which > affect the price of the PC. What happens if a person orders 2 PC's with > differing amounts of RAM? The product id is the same, but the price is > different. In a case like this, it's not really using lists that is the > problem, it is using the item's ID as the key. > > Generally though if I am working with a set data that is complex enough > that I want to use a structure, I follow it through all the way. I'd put > every piece of data in a structure. I guess this would be as close to > object oriented as we can get in CF currently... So if I wanted item > 1002's price, qty, or anything else, I can refer to it by name, with one > line of code. Don't be concerned about speed as much as the cleanliness > of the logic. Macromedia will take care of that for us :) > > cart['1002']['price'] > cart['1002']['qty'] > > jon > Michael Tangorre wrote: > > Hi everyone. > > > > I have just created a simple shopping cart and wanted to get some thoughts on my approach to it. > > > > I create a structure of lists which is stored in the session scope. > > > > 1. cart.quantities > > 2. cart.prices > > 3. cart.products > > > > Basically every time I (add/remove/changeqty) a product, I go through and make changes to the three lists: > > > > Example: > > > > products list (holds product IDs) 1001, 1002, 1003, 1004 > > price list (hold price for sinlge product) 5.99, 6.45, 2.50, 8.99 > > quantity (holds quantity of product added) 2, 4, 1, 1 > > > > So basically everytime I perform an operation, I use ListFind to get the position in the list of the product whose > > ID is passed into the page. Using that location of the product in the > list, I just perform simple insertions, deletions, and updates using the > location. > > > > Does anyone see any downsides to this method? > > I build another cart using arrays, and the execution times for the templates were considerably longer. > > > > Hit me back with some pros and cons or comments. > > > > ______________________________________________________________________ Get the mailserver that powers this list at http://www.coolfusion.com FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/[email protected]/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
