Like any other variable in the local scope, the structure you're creating
ceases to exist when the page finishes processing. You'll need to put it in
a persistent scope (Session, Client) or in some other way pass it to the
next page (serialize it with WDDX and put it in a hidden form variable,
deserializing it on the next page; using Uncle Ben's CF_embedformfields tag;
etc.)
You'll probably want to use Session variables.
1. Remember your CFLOCKs
2. You should probably delete the structure in Session when you get to your
processing page so it's not hanging around.
> OK, I've made this disclaimer before, but it still applies:
> I'm really new when it comes to CF, so I request that you
> please keep that in mind as you read this. I don't claim
> that as an excuse for not searching out the answers on my
> own, but I've been unable to find an explanation of this
> behavior in the CF docs so far. So anyway...
>
> I've got this form, and I want to use the selected/input
> values from the form to call a stored procedure that is
> within a package in an Oracle database for processing. But,
> before passing the values to the database, I want the user to
> be able to confirm the selections that they've made before
> sending the information to the database. So, at the
> beginning of the page that displays the form, I check to see
> if the structure is defined, and if it's not, I create it.
> (I realize that what you're about to read may not make sense
> if it's not the best way to do this, but it was the only way
> that I could figure out to do it, so this is how it currently
> works...I'm open to suggestions) So, on the form page, the
> action is GET, and on the action page, I first populate all
> of the properties of the structure with the URL parameters
> that have been passed from the form, by evaluating their
> values in the URL. I then display the users selections, by
> outputting the values of the structure p!
> roperties. All of this to this point works fine. The fact
> that it works fine, suggests to me that structures reside in
> memory on the CF server, and can persist between templates in
> an application. So, based on that assumption, I also assumed
> that the properties of the structure would be available on
> the NEXT page as well. The action page for the form, has two
> links at the bottom of it, after all of the values that the
> user has selected are displayed for confirmation...one link
> is a back button, that allows the user to go back to the form
> and make any necessary corrections to their input, and the
> other is a link to another template that actually process the
> form by passing all of the properties of the structure to the
> stored procedure in the database for processing. The first
> thing I do in this template, is check for the existence of
> the structure, to make sure that it's values can be passed to
> the stored procedure. This is where my problem comes up.
> Every time I click!
> the link to go to this template for processing, I get the me!
> ssage that gets displayed if the structure does not exist
> (it's a message that I've inserted to let the user know that
> there was an error, due to the fact that the structure cannot
> be found, and processing cannot continue). What am I doing
> wrong? Why is the server not finding this structure? Am I
> not defining it properly to be available across multiple
> templates or something like that? Any thoughts would be
> greatly appreciated. The code for checking for the existence
> of the structure is below. Thanks in advance.
>
> <cfif not isDefined("myStructure")>
> <p>The structure does not exist. Blah blah blah.</p>
> <cfelse>
> ...
> </cfif>
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