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this will always set (or clear) a session attribute:

%IF{"1=1" then="" else="%SESSION_VARIABLE{"name" set="1"}%"}%

you can't use the variable to set a session attribute in an if-statement. i wanted to set or remove a session attribute, if an url-parameter is set or not but failed. later i realized that the condition isn't taken into account.

Correct. This is because variables are evaluated "inside-out-left-right", so the SESSION_VARIABLE is evaluated before the IF is evaluated.

Do this instead:

%SESSION_VARIABLE{"name" set="%IF{"defined urlparam" then="1" else="0"}%"}%



Summary the variable %IF{}% doesn't work with %SESSION_VARIABLE{}%
ReportedBy TWiki:Main.FrankEgger

SVN Range Wed, 12 Apr 2006 build 9798
AppliesTo Engine

Priority Normal
CurrentState No Action Required


TargetRelease n/a
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Topic revision: r4 - 2006-04-21 - CrawfordCurrie
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