On Mon, 14 Apr 2008 18:03:53 +0100, Roger Burton West wrote
> On Mon, Apr 14, 2008 at 07:38:03AM -0800, Alex Teslik wrote:
>
> >$template->param(
> > OUTER_LOOP => [
> > { OUTER_VAR => 'I AM THE OUTER VAR' },
> > { INNER_LOOP => [
> > { INNER_VAR => 'I AM
> > THE
> >INNER VAR' },
> > ]
> > },
> > ],
> > );
>
> Your data structure is wrong.
>
> Each entry in the OUTER_LOOP list is one element in the loop. You
> have two elements; the first one only sets OUTER_VAR and the second
> one only contains INNER_LOOP. So you're going round the loop twice,
> and OUTER_VAR is undefined the second time round. Try this (not
> checked):
>
> $template->param(
> OUTER_LOOP => [
> { OUTER_VAR => 'I AM THE OUTER
> VAR' , INNER_LOOP => [ {
> INNER_VAR => 'I AM THE INNER VAR' },
> ] },
> ], );
>
> Roger
>
Hi Roger,
Thank you for spotting that. That works as expected:
----
OUTER: I AM THE OUTER VAR
INNER: I AM THE INNER VAR
INSIDE OUT: I AM THE OUTER VAR
----
My next step was to then remove the outer_var from the outer_loop in the
template, but still use it in the inner_loop in the template (as indicated in
the changelog):
<TMPL_LOOP OUTER_LOOP>
<!-- no outer_var here anymore -->
<TMPL_LOOP INNER_LOOP>
INNER: <TMPL_VAR INNER_VAR>
INSIDE OUT: <TMPL_VAR OUTER_VAR>
</TMPL_LOOP>
</TMPL_LOOP>
but that does not work as expected:
HTML::Template : Attempt to set nonexistent parameter 'outer_var' - this
parameter name doesn't match any declarations in the template file :
(die_on_bad_params => 1) at
/usr/local/lib/perl5/site_perl/5.8.5/HTML/Template.pm 3068 at at test.pl line 30
It seems that unused outer_loop variables do not work in inner_loops as
indicated in the changelog.
Thanks,
Alex
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