John,
To encode (serialize) a structure into WDDX -
CFWDDX action=CFML2WDDX input=#MyStructure# output=MyWDDXPacket
will create a string called MyWDDXPacket with the WDDX encoding of
MyStructure.
To get it back (de-serialize) -
CFWDDX action=WDDX2CFML input=#myWDDXPacket# output=MyNewStructure
will create a structure called MyNewStructure that should be an EXACT
duplication of the original variable.
You can then loop round the structure and convert it's keys into simple
values like this -
cfloop collection=#myNewStructure# item=key
cfset #key# = myNewStructure[key]
/cfloop
So if your structure was
SESSION
-category
-id
-name
-number
-personalized
-price
-qty
-weight
-session id
you'll then get simple values (un-scoped) called
category
id
name
number
personalized
price
qty
weight
session id
hope that helps
Alistair Davidson
Senior Developer
Rocom New Media
www.rocomx.net
There is no spoon
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: 24 September 2001 15:12
To: CF-Talk
Subject: WDDX and structures
Hello all,
My first post to the group - hopefully not asking questions that
will send
eyes rolling.
Situation:
I'm trying to pass a structure of items from an application to the
secure
portion of the site to complete checkout/ordering process. The main site
sits at http://www.foo.com and the secure portion is on the same server but
at a different domain http://secure.isp.com/foo - obviously, session
variables won't exist from one site to the next so I'm looking at options
for passing the shopping cart structure and a session id#.
I could write to a temporary database prior to leaving www.foo.com,
then
querying said database and re-initializing the needed variables on
secure.isp.com/foo but I'm wondering if that's the best approach.
Research brought me to the doorstep of WDDX (cfwddx) and it seems
like
that it *should* work ideally for avoiding database write/reads. Great!
Problem:
I've been exploring code snippets and examples for just how to
achieve the
results and I'm stumped - I've had some luck in creating the WDDX packet
and can output it's contents for testing using htmleditformat() but I can't
figure out how to actually loop through the packet and breakout the
variables for use on the secure portion of the site.
Questions:
1. Is using WDDX the better approach for accomplishing my task or
should I
give up and just write to the db?
2. Is anyone doing what I'm attempting and, if so, could you
demonstrate
how your code works for me? Please?
3. Is there another approach that I should be aware of instead?
Add'l info:
* I've RTFM - and site after site, post after post still
grasping...
* The packet is only needed one-way (from main site to secure) and
will be
discarded after pulling out the variables for secure processing. I don't
know if that makes any diff or not
* There is a total of 9 variables that exist in the session
structure:
category
id
name
number
personalized
price
qty
weight
session id#
* Each variable can/will contain several items (except for session
id#):
id: 23, 356, 698
name: foo1, foo2, foo3
etc...
* I'd provide code that I'm using but there really isn't anything
more
than just some test code at this point. Sorry.
I await all responses and hope that some wise soul can help guide me
to my
goal.your time is appreciated and I thank you in advance.
Stumped,
John Ramsey
[EMAIL PROTECTED]
FAQ: http://www.thenetprofits.co.uk/coldfusion/faq
Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/
~~
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/cf-talk@houseoffusion.com/
Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
