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Date: Tue, 26 Jul 2005 07:48:08 -0700
From: Neil Gunton <neil@nilspace.com>
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To: Gerald Richter <richter@ecos.de>
CC: embperl@perl.apache.org
Subject: Re: [$ hidden $] bug in 2.0?
References: <20050726141610.0B2A127A8B7@lnx1.i.ecos.de>
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Gerald Richter wrote:
>>I am having a problem with one of my forms under Embperl 
>>2.0rc4, which works under 1.3.6.
>>
>>Here is a minimal case:
>>
>>[- $fdat{xxx} = 'xxx' -]
> 
> 
> Add
> 
> [- @ffld = keys %fdat -]
> 
> 
>><FORM>
>>    [$ hidden $]
>></FORM>
>>
>>This does not produce any hidden value for 'xxx'. It does under 1.3.
>>
>>Setup is Slackware 10.1, apache 1.3.33, mod_perl 1.29.
>>
>>Any ideas? Is this a bug, or intentionally changed behavior?
> 
> 
> 
> Should behave the same in Embperl 1.3, if not it is an bug in Embperl 1.3
> (as you know @ffld gets automaticly setup for parameters posted to the page,
> so maybe your testcase are slightly different for 2.0 and 1.3?)

No, this works when I enable 1.3 and it doesn't work when I enable 2.0. Under 1.3.6, if you set a 
variable in %fdat anywhere prior to the [$hidden$], then this will get included in the [$hidden$] 
set if the variable was not previously explicitly expressed in the form.

In both the Embperl 1.3 and 2.0 documentation, under the [$hidden$] section, it doesn't mention 
@ffld at all (though it may elsewhere) - it simply says that the "default used for the first hash is 
%fdat":

http://perl.apache.org/embperl/pod/doc/doc13/HTML/Embperl.-page-7-.htm
http://perl.apache.org/embperl/pod/doc/Embperl.-page-3-.htm

So I just put stuff in %fdat if I want it included in hidden fields automatically.

I think anyone reading this would have reasonably assumed that the way to
"communicate" additional fields to Embperl for the [$hidden$] command would simply add the variables 
to %fdat, since that is the only one mentioned (and it says it's the default) in the [$hidden$] section.

I have a *lot* of code that works using %fdat. Isn't it possible (and desirable) to make 2.0 behave 
in the same way that 1.3 did, for purposes of backward compatibility? I guess backward compatibility 
includes quirks that perhaps you didn't intend, but I don't really see how this one is so harmful. I 
don't really see why it should be necessary to use two variables (fdat and ffld) when one seemed to 
do the job quite well before.

Just my opinion as a user of course...

Thanks!

-Neil

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