Did you try turning the debugging on to see exactly what ColdFusion
thinks is there?  Make sure you enable both session and form tracking.

M!ke 

-----Original Message-----
From: Ian Skinner [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, February 22, 2005 4:32 PM
To: CF-Talk
Subject: Speaking of fun things you can do with form data.

This is a thought question to get a better understanding on what is
going on under the hood.

I just finished debugging this issue; apparently ColdFusion reuses
memory for the form scope.

If one has the following code in two files.  On page one, you get what I
expect, the form fields showing up as keys of the session.form
structure.  Since complex data structures are passed by reference, I
figured that since I had a persistent reference to the current form
structure it would exist on the next page.  But it does not.  The form
key will be in the session scope on page two, but it will be an empty
structure.  What I deduce from this is that CF is using the same memory
for the form structure and creating an empty structure in this memory
when they there is no form data from the request. Does this sound
correct?

File one
<!--- an action page to some form --->
<cfset session.form = form>
<cfdump var="#session#">
<a href = "fileTwo.cfm">Next page</a>

File two
<cfdump var="#session#"

Now this was easily fixed once I tracked down the problem with the
following modification.  So, I am not trying to solve the problem just
getting a better understanding of how CF really works.  This is on 6.1
by the way.

<cfset session.form = duplicate(form)>


--------------
Ian Skinner
Web Programmer
BloodSource
www.BloodSource.org
Sacramento, CA
 
"C code. C code run. Run code run. Please!"
- Cynthia Dunning

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