Hey Alistair,
> $m->comp('component.html', $foo ? (foo => $foo) : ());
> Does seem slightly mucky, but it does do the job. Thanks. I take it
>this is expected behaviour then? And it does lead me to wonder quite
>how it works if an empty list works but an empty scalar doesn't ...
I think you're looking at wrongly. If foo is true, you're going to get
$m->comp( $component, foo => $foo );
Otherwise, you're going to get
$m->comp( $component, () );
^^^ no parameters are being sent through :)
What you could have in your component is something like:
my %DEFAULT = (
key1 => $value1,
key2 => $value2,
...
);
foreach my $key ( grep { not defined $ARGS{$key} } keys %ARGS ) {
$ARGS{$key} = $DEFAULT{$key}
}
Alfie
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On Sat, Mar 8, 2008 at 1:07 AM, Hans Dieter Pearcey <[EMAIL PROTECTED]> wrote:
> On Fri, Mar 07, 2008 at 01:54:24PM +0000, Alastair Douglas wrote:
> > Does seem slightly mucky, but it does do the job. Thanks. I take it
> > this is expected behaviour then? And it does lead me to wonder quite
> > how it works if an empty list works but an empty scalar doesn't ...
>
> Replace "an empty list" with "an empty list of key/value pairs", and "an
> empty
> scalar" (no such thing, btw) with "a single key with an undefined value", and
> it should be clearer.
>
> <%args> must work this way, because otherwise this would never work:
>
> <%args>
> $foo => 17
> </%args>
> if (defined $foo) {
> # do some foo stuff
> }
>
> # elsewhere
>
> # does some foo stuff
> <& mycomp, foo => 0 &>
>
> # doesn't do some foo stuff
> <& mycomp, foo => undef &>
>
> hdp.
>
>
>
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