Global variable or alt. idea for session var

[gidon wise]

Hello,

First, thanks for html::template it's great.

I have a large system up and running.
And now all of a sudden I have to add some
session info to all of the URL's.

The problem is that the URL's are all in many different loops.

And as you know, each Loop has a scope that is independent
of everything else. So, I would have to put
this session info into every iteration of every loop in all of my systems.

This is a big ugly job.

Is there an easier way?

I thought of TMPL_INCLUDE because that works globally
even in loops. But that's no good because I use
cache and the session variables have to change
between different usages.

Anyone have any other ideas?

How about a new GLOBAL variable?

Thanks for your suggestions!

Gidon

[gidon wise]

I couldn't wait, so I made a preliminary global patch.

Here's how it works.

Any variable that is defined in the main section.
(In the section outside of any loop, get's put
in the $HTML::Template::GLOBAL_pstack{$name} )

When the code is in a loop and is looking for a variable,
then it first checks the loop namespace, and then afterwards
if there is no such variable, it checks the GLOBAL_pstack
for the variable.

I'm sure that everyone will be able to figure out how to
make this better and easier to use.

Issues include:
1) You have to use (declare) the global somewhere
in the html page.
      a. Maybe a variable prefix (e.g. name=GLOBAL_x) or different tag TMPL_GLOBAL would solve this problem.
2) Anything that is in the main could be a global.
      a. solved by 1.a.

Here is the diff:
1413c1413,1417
<           } else {
---
>           } elsif (exists $HTML::Template::GLOBAL_pmap{$name}){
>         $var = $HTML::Template::GLOBAL_pmap{$name};
>             (ref($var) eq 'HTML::Template::VAR') or
>               die "HTML::Template->new() : Already used param name $name as a TMPL_LOOP, found in a TMPL_VAR at $fname : line $fcounter.";
>       }else{
1415a1420
>         $HTML::Template::GLOBAL_pmap{$name} = $var if ! @loopstack;

[Sam Tregar]

If you're using a recent version of HTML::Template, and you should be, you can use the 'global_vars' option.  It makes all variables available at all scopes and allows for pretty much exactly what you're looking for. 

Good luck!
-sam

[gidon wise]

Thanks!

I guess I should have upgraded again before
I posted the question and patch :)

Gidon