[pm-h] mod perl and calendar.cgi
G. Wade Johnson
gwadej at anomaly.org
Tue May 6 12:12:22 PDT 2014
On Tue, 6 May 2014 12:50:40 -0500
"Fraser Baker" <flbaker at sbcglobal.net> wrote:
> Hi Wade.
> Yes, a sub initialize exists.
>
>
> ----- Original Message -----
> From: "G. Wade Johnson" <gwadej at anomaly.org>
> To: <houston at pm.org>
> Sent: Tuesday, May 06, 2014 11:13 AM
> Subject: Re: [pm-h] mod perl and calendar.cgi
>
>
> > On Tue, 6 May 2014 10:53:55 -0500
> > "Fraser Baker" <flbaker at sbcglobal.net> wrote:
> >
> >> Some progress, but still not working.
> >>
> >> Turns out that the problem file "calendar.cgi" was using a locally
> >> installed liteweight version of template.pm.
> >
> > Okay. That would make some sense.
> >
> >> I renamed the file CalTemplate.pm and put it into the site/lib/HTML
> >> folder. I changed the package name in this file to CalTemplate.pm
> >>
> >> The %INC shows:
> >> For HTML/CalTemplate.pm value is
> >> C:/Perl/site/lib/HTML/CalTemplate.pm
> >>
> >> The use statement in calendar.cgi is
> >> use HTML::CalTemplate;
> >>
> >> The use directive finds and appears to load the file, but the same
> >> line as before can't find initialize
> >> [Tue May 06 10:15:30 2014] [error] Can't locate object method
> >> "initialize" via package "HTML::CalTemplate" (perhaps you forgot to
> >> load "HTML::CalTemplate"?) at
> >> D:/www/wc-admin.com/cgi-bin/event_calendar/calendar.cgi line 131.\n
> >
> >
> > Just to verify the obvious, is there an initialize() sub in
> > CalTemplate.pm?
> >
> > G. Wade
> >
> >> The offending line 131 is
> >> my $tmpl = CalTemplate->initialize( $directives->{'template'} ||
> >> 'calendar.html' );
This is a bit suspicious.
Is the package name "CalTemplate" or "HTML::CalTemplate"? You are using
one name for the 'use' statement and another for the initialize call.
Just to be clear:
1. The code that loads the module (calendar.cgi) should contain:
use HTML::CalTemplate;
2. The call to initialize should be:
my $tmpl = HTML::CalTemplate->initialize( ... );
3. The package declaration inside C:/Perl/site/lib/HTML/CalTemplate.pm
should be:
package HTML::CalTemplate;
All three of these must match (including case) or Perl won't find the
right namespaces. This would give exactly the behavior you describe.
G. Wade
> >> Obviously, my understanding about mod_perl and now OOP is limited,
> >> so any comments?
> >>
> >> Fraser
> >>
> >> ----- Original Message -----
> >> From: "G. Wade Johnson" <gwadej at anomaly.org>
> >> To: <houston at pm.org>
> >> Sent: Monday, May 05, 2014 11:40 AM
> >> Subject: Re: [pm-h] mod perl and calendar.cgi
> >>
> >>
> >> > On Mon, 5 May 2014 09:09:11 -0500
> >> > "Fraser Baker" <flbaker at sbcglobal.net> wrote:
> >> >
> >> >> Hi:
> >> >>
> >> >> OK, I had two copies of HTML::Template, one in Site and the
> >> >> other came with PERL. I removed the one in Site and this made no
> >> >> difference.
> >> >>
> >> >> Reading a bit, always dangerous, I find that find that the page
> >> >> http://www.devshed.com/c/a/perl/getting-started-with-the-perl-template-toolkit/
> >> >> talks about installing Apache::Template.
> >> >>
> >> >> Is this what I need to do? I really need to resolve this issue.
> >> >> There must be someone out there that can help me resolve this.
> >> >
> >> > Hi Fraser,
> >> >
> >> > Template Toolkit is completely different from HTML::Template.
> >> > Apache::Template works with Template Toolkit, so installing it
> >> > would not help your issue. (Unless you wanted to rewrite
> >> > everything you are doing in Template instead of HTML::Template.
> >> > <jk/>)
> >> >
> >> > G. Wade
> >> >
> >> >> Fraser
> >> >>
> >> >> ----- Original Message -----
> >> >> From: "B. Estrade" <estrabd at gmail.com>
> >> >> To: "Houston.pm located in Houston, TX." <houston at pm.org>
> >> >> Sent: Friday, April 25, 2014 7:51 PM
> >> >> Subject: Re: [pm-h] mod perl and calendar.cgi
> >> >>
> >> >>
> >> >> > On Fri, Apr 25, 2014 at 1:44 PM, G. Wade Johnson
> >> >> > <gwadej at anomaly.org> wrote:
> >> >> >> On Fri, 25 Apr 2014 12:09:59 -0500
> >> >> >> "Fraser Baker" <flbaker at sbcglobal.net> wrote:
> >> >> >>
> >> >> >>> OK:
> >> >> >>>
> >> >> >>> For the server that is NOT running mod_perl
> >> >> >>> INCLUDED DATA ARRAY is
> >> >> >>> Term is C:/Perl/site/lib
> >> >> >>> Term is C:/Perl/lib
> >> >> >>> Term is .
> >> >> >>>
> >> >> >>> For the server that IS running mod_perl
> >> >> >>>
> >> >> >>> INCLUDED DATA ARRAY is
> >> >> >>> Term is D:/www/wc-admin.com/cgi-bin
> >> >> >>> Term is C:/Perl/site/lib
> >> >> >>> Term is C:/Perl/lib
> >> >> >>> Term is .
> >> >> >>> Term is C:/Program Files/Apache Software
> >> >> >>> Foundation/Apache2.2
> >> >> >>
> >> >> >> Okay. This gives us some stuff to work with.
> >> >> >>
> >> >> >> Check each of the directories in the two sets of paths for
> >> >> >> HTML/Template.pm. This might show more than one
> >> >> >> HTML::Template module installed.
> >> >> >
> >> >> > Or none at all. Make sure HTML::Template is installed.
> >> >> >
> >> >> >>
> >> >> >> Next, check to see if you have the same version of
> >> >> >> HTML::Template on both machines. I had somehow missed earlier
> >> >> >> that these were two separate machines. (Brain fail)
> >> >> >>
> >> >> >
> >> >> > /me too... oopsie
> >> >> >
> >> >> >> You'll want to verify that there is only one version of
> >> >> >> HTML::Template on each server and that the versions on the
> >> >> >> two servers match.
> >> >> >>
> >> >> >> If the one that works is older than the one that doesn't,
> >> >> >> upgrading will require code changes to match the newer
> >> >> >> module. If the one that works is the newer version, you can
> >> >> >> upgrade the version and the problem should be solved.
> >> >> >>
> >> >> >> G. Wade
> >> >> >>
> >> >> >>
> >> >> >>> I don't see anything here. Where to go from here?
> >> >> >
> >> >> > Is this mod_perl or mod_perl2? I am not familiar with any of
> >> >> > this on Windows unfortunately. You could create a barebones
> >> >> > script that just tries to include HTML::Template using one
> >> >> > directory in @INC at a time. mod_perl also does funky things
> >> >> > with applications that are not meant to be run persistently -
> >> >> > so if this is the case there are request "handlers" that are
> >> >> > meant to restart or recompile/restart for each request.
> >> >> >
> >> >> > Unfortunately it could be a tedious process to track it down,
> >> >> > but I think wade's put you on the right track.
> >> >> >
> >> >> > Brett
> >> >> >
> >> >> >>>
> >> >> >>> Fraser
> >> >> >>>
> >> >> >>>
> >> >> >>> ----- Original Message -----
> >> >> >>> From: "G. Wade Johnson" <gwadej at anomaly.org>
> >> >> >>> To: <houston at pm.org>
> >> >> >>> Sent: Friday, April 25, 2014 11:25 AM
> >> >> >>> Subject: Re: [pm-h] mod perl and calendar.cgi
> >> >> >>>
> >> >> >>>
> >> >> >>> > On Fri, 25 Apr 2014 08:23:59 -0500
> >> >> >>> > "Fraser Baker" <flbaker at sbcglobal.net> wrote:
> >> >> >>> >
> >> >> >>> >> Hi Brett:
> >> >> >>> >>
> >> >> >>> >> Turns out that for the mod_perl server, there are some
> >> >> >>> >> 165 entries in %INC whereas for the not mod-perl server
> >> >> >>> >> there is only one.
> >> >> >>> >
> >> >> >>> > Hi Fraser,
> >> >> >>> >
> >> >> >>> > There are 2 different things here.
> >> >> >>> >
> >> >> >>> > @INC contains a list of directories that perl searches for
> >> >> >>> > modules. %INC contains entries for each module that is
> >> >> >>> > loaded.
> >> >> >>> >
> >> >> >>> > I believe the suggestion was to check @INC to see if a
> >> >> >>> > module is loaded from a location you are not expecting.
> >> >> >>> >
> >> >> >>> > G. Wade
> >> >> >>> >
> >> >> >>> >> The %ENV is larger by about 5 entries on the mod_perl
> >> >> >>> >> machine.
> >> >> >>> >>
> >> >> >>> >> OK, where do I go from here.
> >> >> >>> >>
> >> >> >>> >> Fraser
> >> >> >>> >>
> >> >> >>> >> ----- Original Message -----
> >> >> >>> >> From: "B. Estrade" <estrabd at gmail.com>
> >> >> >>> >> To: "Houston.pm located in Houston, TX." <houston at pm.org>
> >> >> >>> >> Sent: Tuesday, April 22, 2014 10:15 AM
> >> >> >>> >> Subject: Re: [pm-h] mod perl and calendar.cgi
> >> >> >>> >>
> >> >> >>> >>
> >> >> >>> >> > Just a hunch, but I'd look to see how mod_perl affected
> >> >> >>> >> > your environment. namely @INC.
> >> >> >>> >> >
> >> >> >>> >> > Brett
> >> >> >>> >> >
> >> >> >>> >> > On Tue, Apr 22, 2014 at 9:47 AM, Fraser Baker
> >> >> >>> >> > <flbaker at sbcglobal.net> wrote:
> >> >> >>> >> >> Hi y'all:
> >> >> >>> >> >>
> >> >> >>> >> >> Before I added mod-perl, calendar.cgi worked.
> >> >> >>> >> >>
> >> >> >>> >> >> After mod perl I get this error:
> >> >> >>> >> >>
> >> >> >>> >> >> [Tue Apr 22 09:28:35 2014] [error] Can't locate object
> >> >> >>> >> >> method "initialize"
> >> >> >>> >> >> via package "HTML::Template" at
> >> >> >>> >> >> D:/www/wc-admin.com/cgi-bin/event_calendar/calendar.cgi
> >> >> >>> >> >> line 131.\n
> >> >> >>> >> >>
> >> >> >>> >> >> The offending line in calendar.cgi is:
> >> >> >>> >> >>
> >> >> >>> >> >> my
> >> >> >>> >> >>
> >> >> >>> >> >> $tmpl =
> >> >> >>> >> >> HTML::Template->initialize( $directives->{'template'}
> >> >> >>> >> >> || 'template.html' );
> >> >> >>> >> >>
> >> >> >>> >> >> I searched template.pm and don't find a function named
> >> >> >>> >> >> initialize. I do find
> >> >> >>> >> >>
> >> >> >>> >> >> # initialize the template buffer
> >> >> >>> >> >> sub _init_template {
> >> >> >>> >> >>
> >> >> >>> >> >> How do I fix this?
> >> >> >>> >> >>
> >> >> >>> >> >> Fraser
> >> >> >>
> >> >> >>
> >> >> >> --
> >> >> >> If debugging is the process of removing software bugs, the
> >> >> >> programming must be the process of putting them in.
> >> >> >> -- Edsger Dijkstra
> >> >> >> _______________________________________________ Houston
> >> >> >> mailing list Houston at pm.org
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> >> >>
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> >> >
> >> >
> >> > --
> >> > Fortune knocks but once, but misfortune has much more patience.
> >> > -- Laurence J.
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> >
> > --
> > Sufficiently encapsulated magic is technology. -- Michael Schwern
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