Forum Discussion
Guillaume_Rouss
Aug 12, 2019Nimbostratus
Formating issue: default value for undefined variable
Hello. We're using an irule to log http access to a remote syslog server. I know there is also a dedicated profile for this, but we prefer to use a consistent implementation for all our logging ne...
- Aug 13, 2019
You need to make sure you use the expr syntax when using a ternary operator within a variable.
For example:
% set colour [expr {"1" ? "red" : "blue"}] red % set colour [expr {"0" ? "red" : "blue"}] blue
So looking at your example, you'd need to change it to be something like this.. (note that I have changed the from single to double quotation marks for the hyphen)
set message [format \ "%s - %s \[%s\]..." \ ... \ [expr {[info exists [HTTP::username]] ? [HTTP::username] : "-" }] ]
Guillaume_Rouss
Aug 19, 2019Nimbostratus
Indeed. Thanks for the explanation.
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