Larry,
I often persist independently of the HTTP server by using a frameset (it
does not need to be a visible frameset).
The technique is very simple.
The relevant page uses javascript to populate an ID number in the parent
frameset.
It remains for any other page to retrieve, via javascript, and transmit
when needed.
-----Original Message-----
From: web400-bounces@xxxxxxxxxxxx [mailto:web400-bounces@xxxxxxxxxxxx]
On Behalf Of Larry Kleinman
Sent: Friday, 7 March 2008 10:26 a.m.
To: Web Enabling the AS400 / iSeries
Subject: Re: [WEB400] shopping cart in net.data
Thanks for the quick response. I agree, net.data does not do
complicated well. I apologize for not being specific. Most of the
logic will be done via calls to RPG programs (since most of these
already exist). I think that what is hanging me up is the ability to
keep a single "transaction" while going from screen to screen. In
"green screen days" this would be simple - an order number in an order
header file, that is associated with all of the items (in an order
detail file). My problem is going to be keeping track of this order
number as we go from screen to screen (sometimes via HREF, sometimes via
SUMBIT). I'd rather not be passing this number as part of the URL. I
know net.data has the ability to do a persistent function, but the
documentation that I've seen for this is a nightmare. Is this the
direction
- other than something like PHP which I do not yet know well enough to
deal with - that makes sense? If so, do you know where I might find
some examples of persistent macros?
Larry Kleinman
Kleinman Associates, Inc.
212-949-6469
203-255-4100
"Haas, Matt (CL
Tech Sv)"
<matt.haas@cengag
To
e.com> Web Enabling the AS400 / iSeries
Sent by: <web400@xxxxxxxxxxxx>
web400-bounces@mi
cc
drange.com
Subject
Re: [WEB400] shopping cart in
03/06/2008 04:16 net.data
PM
Please respond to
Web Enabling the
AS400 / iSeries
<web400@midrange.
com>
Larry,
This can be done. In fact, IBM used to sell a product called
Net.Commerce (this is now called WebSphere Commerce Suite and is written
in Java) that did this very thing. The way they did it was to handle all
of the programming logic in native code and use Net.Data just for the
display. IBM gave us a demo of this (that was around 1998) and the code
was very, very ugly.
Depending upon what you're doing, shopping carts can be pretty
complicated and it's been my experience that Net.Data doesn't do
complicated very well.
We (as in mostly me) ended up writing CGI programs to do all of this
that wrapped our order entry logic (the validation part is where it gets
tricky, the act of taking a product id and putting it in a table is
easy). If I were doing this today and didn't want to use Java, I
probably would use one of the tool kits (like CGIDEV2).
Another option would be to use PHP. There are plenty of examples in PHP
to get you started. Most of the ones I've seen lacked the sophistication
you'd expect of a production app but they would be a place to start.
Matt
-----Original Message-----
From: web400-bounces@xxxxxxxxxxxx [mailto:web400-bounces@xxxxxxxxxxxx]
On Behalf Of Larry Kleinman
Sent: Thursday, March 06, 2008 3:58 PM
To: WEB400@xxxxxxxxxxxx
Subject: [WEB400] shopping cart in net.data
Has anyone done a shopping cart in Net.data? I've done a lot of work
with net.data, but never a cart. I'm about to start one, but if someone
knows any samples, freeware, etc out there, I'd rather not start from
scratch. Thanks
Larry Kleinman
Kleinman Associates, Inc.
212-949-6469
203-255-4100
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