Hi monks,
I'm new to writing perl modules and am attempting to build and return a hash from within a .pm.
When i retrieve my hash all i get is its "scalar" value, not the hash itself.
Here's a cutdown version of my code:
the module: 
package MeSH::KOL;

use strict;
use vars qw($VERSION);
$VERSION = '0.01';

sub new {
  my ($class) = @_;
  my $self = {};
  $self->{KOLS} = ();
  bless $self, $class;
  return $self;
} # end-sub

sub build_KOL {
  my($self) = @_;
  # for this example
  my %results = ();
  $results{1} = "blah1";
  $results{2} = "blah2";
  $self->{KOLS} = %results;
} # end-sub

sub get_all_KOLS {
  my ($self) = @_;
  return $self->{KOLS};
  #my %hash = ();
  #$hash{1} = "blah1";
  #$hash{2} = "blah2";
  #return %hash;
} # end-sub

[download]
the script: 
#/usr/bin/perl
use MeSH::KOL;
my $kol_q = new MeSH::KOL;
$kol_q->build_KOL;
my (%kols) = $kol_q->get_all_KOLS;

foreach my $auth_id (keys %kols) {
  print "$auth_id = $kols{$auth_id}\n";
} # end-foreach

[download]
This outputs 72/128 =
It works when i use the commented out hash in "get_all_KOLS"...
Can anyone tell me what i'm doing wrong?
Cheers,
Reagen

Update: Thanks guys... Also for the push to read perlref... doin that now :) .

In reply to Hashes in Perl Modules by rsiedl

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