Hi Ausum, Thanks for the reply. What I actually mean is - the name of the variable I want the value of is stored inside another variable, in the request. For example... REQUEST.StoredVar[1] contains SelectStudentID and I want to perform a dtml-if condition based on whether SelectStudentID contains a value or not! So to get this value I perform a '_.getattr(REQUEST,StoredVar[1])' command. But I cannot seem to do this within a <dtml-if ... > statement, it throws up an error if the variable does not exist, presumably because I'm trying to work through an extra layer of variables.... just to make life complicated :) hope this is now clearer, any help much appreciated! Regards, Greg.
-----Original Message----- From: zope-admin@zope.org [mailto:zope-admin@zope.org]On Behalf Of Ausum Studio Sent: 24 August 2002 18:39 To: zope@zope.org Subject: Re: [Zope] dtml-if fustration!
What is the "next pass"?. Do you mean within the same page? If so, you don't need to declare the variable, as long as it's been already defined for the whole page. Just use <dtml-var SelectSID> anywhere.
Now, if you need to change its value, and then use it on the remaining portion on the rendered page, the anwser is the same, use <dtml-var SelectSID>. You don't need to use the "REQUEST.SelectSID" part.
Ausum
----- Original Message ----- From: "Greg Conway" <greg@gmlnt.com> To: "Zope@Zope. Org" <zope@zope.org> Sent: Saturday, August 24, 2002 11:56 AM Subject: [Zope] dtml-if fustration!
Hi all,
I have a fustrating problem with dtml-if's!! I've tried to work round it in many ways, but there is probably an easy one I am overlooking knowing my luck...
Anyway... Consider the following dtml-if statement:
<dtml-if SelectSID> SelectSID = <dtml-var SelectSID> <dtml-call "REQUEST.set('SelectSID', SelectSID)"> </dtml-if>
This works okay, and stores the variable SelectSID in the request for the code to pick up again on it's next pass.
However, on the next pass, the variable SelectSID doesn't exist! As the variable is now REQUEST.SelectSID - and the following code doesn't work....
<dtml-if "REQUEST.SelectSID"> SelectSID = <dtml-var SelectSID> <dtml-call "REQUEST.set('SelectSID', REQUEST.SelectSID)"> </dtml-if>
...as an error is thrown up if REQUEST.SelectSID doesn't exist!
Anybody got a simple answer to my dilemma?!!
Many thanks for any help!
Regards,
Greg Conway.
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