You said you set the variable through:
<dtml-call "REQUEST.SESSION.set('undergradProjectsDirected', [ ])">
You wrote that this does not work:
<dtml-call "(REQUEST.SESSION.get('undergraduateProjectsDirected')).append([student_name, description])">
Of course it does not work because in both cases the names of the session vars are completely different..
so why should this work?
--On Donnerstag, 28. April 2005 13:56 Uhr -0400 Asad Habib <[EMAIL PROTECTED]> wrote:
Actually, it does exist as I mentioned in my original message. If it did not exist, then <dtml-var "REQUEST.SESSION"> would yield a value of None for it. Also, if this were the case, then simply changing the name of the variable would not solve the problem.
On Thu, 28 Apr 2005, Andreas Jung wrote:
--On Donnerstag, 28. April 2005 13:44 Uhr -0400 Asad Habib <[EMAIL PROTECTED]> wrote:
> I have a session variable called 'undergraduateProjectsDirected' that I > declare using the following syntax: > > <dtml-call "REQUEST.SESSION.set('undergradProjectsDirected', [ ])"> > > When I try to append items to this list variable, I get the following > error: > > AttributeError: 'NoneType' object has no attribute 'append' > > I know for a fact that this variable exists since flushing the SESSION > attribute of the REQUEST variable using <dtml-var "REQUEST.SESSION"> > yields its name and shows that it is initially empty. > > I am using the following statement to append items: > > <dtml-call > "(REQUEST.SESSION.get('undergraduateProjectsDirected')).append([studen > t_n ame, description])"> > > The strange thing is that when I change the name of this variable to > 'undergradProjectsDirected', the error does not occur anymore.
Check the spelling of your session key! Of course you're getting an error when you are trying to append to something that does not exist.
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