http://www.perlmonks.org?node_id=262785


in reply to Re: OO Perl: Methods To Reference Hash
in thread OO Perl: Methods To Reference Hash

My hash is being created correctly and looks something like this: 
HASH DUMP: 2030000 => 2030000.xml
HASH DUMP: 2030001 => 2030001.xml
HASH DUMP: 2030002 => 2030002.xml

[download]
When I attempt to dump it is after the object has been instantiated with the hash in it using a set() method. 
    my %hshAgg     = $self->get_hshAgg();
    dumpHash(%hshAgg);

[download]
...the dump looks like this: 
HASH DUMP: HASH(0x223db34) =>

[download]
What am I doing wrong here? 
sub run {
    my $self        = Myobj->new(@_);
    ...
    $self->set_hshAgg(%hshAgg);
    ...
}

# method within object
sub myProblem {
    my %hshAgg     = $self->get_hshAgg();
    dumpHash(%hshAgg);
}

[download]

-P0w3rK!d

Replies are listed 'Best First'.
Re: Re: Re: OO Perl: Methods To Reference Hash
by halley (Prior) on Jun 03, 2003 at 21:03 UTC

    Whenever you're trying to debug data structures, I recommend using Data::Dumper. This will help you see the structures in Perl syntax, and will avoid any bugs you may introduce in your own home-spun "dumping" methods. 

    use Data::Dumper;
...
print Dumper \%hashFoo;
print Dumper $refHashFoo;

    [download]

    Other useful learning materials are in perlreftut and perllol.

    --
    [ e d @ h a l l e y . c c ]

[reply]
[d/l]
      The problem is not with the data, it is with the set() and get() methods that manipulate the hash within the object.
[reply]

In Section Seekers of Perl Wisdom