Apache::Constants don't map 1:1 into Apache::Const

[Stas Bekman <st...@stason.org>]

Currently we have a problem with Constants in 1.x and 2.x which don't 
map 1:1, since in 2.0 some constants are gone, some are renamed. See the 
report below.

How should we deal with that? Currently Apache::compat only forwards the 
symbols to Apache::Const, so this doesn't always work.

Do we need to manually trap requests for the renamed and removed 
constants in Apache::compat and satisfy the caller?

-------- Original Message --------
Subject: compatibility problem
Date: Fri, 17 May 2002 16:43:32 +1000 (EST)
From: Jie Gao <J....@isu.usyd.edu.au>
To: modperl@perl.apache.org

Hi all,

I've been trying to get httpd-2.0.35 + mod_perl-1.99_01 work with backward
compatibility.

MY startupl.pl:

#! /usr/bin/perl
use lib '/usr/lib/perl5/site_perl/5.6.1/i386-linux/Apache2';
use strict;
use Apache::compat ();
use Apache2 ();
use My::AuthCookieHandler;
1;

and this script won't run to finish with the error:

unknown group `response' at 
/usr/lib/perl5/site_perl/5.6.1/My/AuthCookieHandler.pm line 6.
BEGIN failed--compilation aborted at 
/usr/lib/perl5/site_perl/5.6.1/My/AuthCookieHandler.pm line 6.
Compilation failed in require at ./startup.pl line 6.
BEGIN failed--compilation aborted at ./startup.pl line 6.

And this is the line in question:

use Apache::Constants qw(:common :response M_GET M_POST AUTH_REQUIRED 
REDIRECT);

If I take out response, it croaks at "REDIRECT".

Any ideas why?

Thanks,



Jie

-- 


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Re: Apache::Constants don't map 1:1 into Apache::Const

[Doug MacEachern <do...@covalent.net>]

On Fri, 17 May 2002, Stas Bekman wrote:

> Currently we have a problem with Constants in 1.x and 2.x which don't 
> map 1:1, since in 2.0 some constants are gone, some are renamed. See the 
> report below.

REDIRECT and the like have been deprecated in apache for years, in favor 
of the HTTP_* names.  there are a couple of shortcut names carried over in 
the modperl2 api (see ModPerl/Code.pm:%shortcuts).  REDIRECT should 
probably be part of that list.  however, we should not attempt to provide 
a mapping for _all_ of the old deprecated names.  in this particular case, 
the module can be changed from:

use Apache::Constants qw(:response REDIRECT);

to

use Apache::Constants qw(HTTP_MOVED_TEMPORARILY ...);

where '...' is the fully qualified name.
then it'll work with both 1.x and 2.x


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