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09.27.2007 at 06:16PM PDT, ID: 22858464
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7.8

Handling fatal errors while using HTML::Template

Asked by FishMonger in CGI Scripting, Perl Programming Language

Tags: , , ,

My script makes db and ssh connections to several servers and rather than using 'die' (and CGI::Carp) when/if there is a fatal error, I want to use a sub that assigns one or more template vars then output and exit.  However, I've been unable to get this to work as desired.  If I leave in "use CGI::Carp qw(fatalsToBrowser)", then instead of executing the sub and displaying the error in the template, it produces the standard die error.  If I comment out CGI::Carp, then it returns a blank page.

Here are the relevant portions of the script and template.

my $dbh = DBI->connect("DBI:mysql:$db:$server", $user, $pass,
                         { RaiseError => 1, PrintError => 0 } )
              or fatal($DBI::errstr);

sub fatal {
   my $error = shift;
   $template->param(fatal_error => $error);
   $template->output;
   exit;
}


<!-- container to display fatal error messages -->
<TMPL_IF NAME="fatal_error">
  <div class="status_window">
    <h3>FATAL ERROR</h3>
    <p><TMPL_VAR NAME="fatal_error"></p>
  </div>
</TMPL_IF>
<!-- end of error container -->

I also tried wrapping the db call in an eval block and execute the fatal sub if an error is caught, but received a blank page.

Anyone know the proper way to handle fatal errors cleanly while using HTML::Template?Start Free Trial
[+][-]09.27.2007 at 07:40PM PDT, ID: 19976145

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About this solution

Zones: CGI Scripting, Perl Programming Language
Tags: html, while, error, fatal
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Solution Provided By: mjcoyne
Participating Experts: 1
Solution Grade: A
 
 
[+][-]09.27.2007 at 08:18PM PDT, ID: 19976317

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[+][-]09.28.2007 at 03:13AM PDT, ID: 19977507

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[+][-]09.28.2007 at 08:48AM PDT, ID: 19979566

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[+][-]09.28.2007 at 11:30AM PDT, ID: 19980732

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[+][-]09.28.2007 at 12:54PM PDT, ID: 19981335

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[+][-]09.28.2007 at 02:02PM PDT, ID: 19981745

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