Hi,

I cannot seem to figure out why my use of a hash of hash doesn't work when I integrate my test script into a Object Orientated Perl module.

Here's an abbreviated version of my test script: 

#!/usr/bin/perl -w
use strict;

my %TZMap = (
        sjc => {
                TZ1     => 'PST',
                TZ2     => 'PDT',
                TZFILE  => '/usr/share/zoneinfo/America/Los_Angeles',
        },
        blr => {
                TZ1     => 'IST',
                TZ2     => 'IST',
                TZFILE  => '/usr/share/zoneinfo/Asia/Calcutta',
        },
);

sub testmap {
        my $tz = `/bin/date +%Z`;
        chomp($tz);
        my $site = `/bin/hostname | cut -d- -f2 | cut -c1-3`; 
        chomp($site);
        my $tzfile = $TZMap{$site}->{TZFILE};
        print "$site:" . $TZMap{$site}->{TZ1} . ":" . $TZMap{$site}->{
+TZ2} . ":$tz\n";
}

testmap();

[download]
The output of this is what one would expect: 
sjc:PST:PDT:PST

[download]
Now I moved this same declaration of the TZMap into a Perl module where I hope to check systems' timezone info like so ... 
package MAN::ER::SRole::Base;
use strict;
use base qw(MAN::ER::SRole);
use MAN::ER::SRole;
   ... code omitted ...
my %TZMap = {
   ... code omitted ...
};

   ... code omitted ...

sub new {
    my $proto = shift;
    my $class = ref($proto) || $proto;
    my $self = $class->SUPER::new();

    bless($self, $class);
    return $self;

}

   ... code omitted ...

sub check_timezone {
        my ($self) = @_;
        my $site        = `/bin/hostname | /bin/cut -d- -f2 | /bin/cut
+ -c1-3`;
        chomp($site);
        my $tz          = `/bin/date +%Z`;
        chomp($tz);
        my $tzfile      = $TZMap{$site}->{'TZFILE'};
print Dumper(%TZMap);
        print "$site:" . $TZMap{"$site"}{TZ1} . ":" . $TZMap{$site}->{
+TZ2} . ":$tz\n";
        if ( $TZMap{$site}->{TZ1} eq $tz or $TZMap{$site}->{TZ2} eq $t
+z ) {
                $self->log_okay_message( "yada yada\n");
        } else {
                $self->log_error_message("blah blah\n" );
        }
}

sub check {
    my ($self) = @_;
    $self->clear_result();

    $self->_common('check');


    $self->ensureprocess($_) foreach @processes;
    $self->check_timezone();
}

[download]
When I run the code that uses this Perl module the output I get is ... 
$VAR1 = {
          'HASH(0x88eb640)' => undef,
          'sjc' => {}
        };
sjc:::PST

[download]
... there are no values in the has. What am I doing wrong here? and BTW we are using a vert old version of Perl (v5.6.1) maybe that's the issue but I hope not.

In reply to What happened to my globally declared hash when moved to OO Perl code? by Plankton

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