Hello perlnewb4life, and welcome to the Monastery!

Anonymous Monk means that this:

sub querryDatabase() {
   my($inputData) = @_;
   ...

[download]

should be this:

sub querryDatabase() {
   my($self, $inputData) = @_;
   ...

[download]

because the first argument passed in to any method call is always an object reference. Here’s a contrived (and naïve) example:

use strict;
use warnings;

package Widget
{
    use Moose;

    has 'ID' =>
    (
        is       => 'rw',
        isa      => 'Str',
        required =>  1,
    );

    sub inc_id
    {
        my ($self, $inc) = @_;
        my  $id = $self->ID;
        my ($prefix, $suffix) = $id =~ /^([^\d]+)(\d+)$/;
        $self->ID( $prefix . ($suffix + $inc) );
    }
}

my $gizmo = Widget->new( { ID => 'PM142' } );

print $gizmo->ID, "\n";
      $gizmo->inc_id(5);
print $gizmo->ID, "\n";

[download]

Output:

16:41 >perl 1366_SoPW.pl
PM142
PM147

16:41 >

[download]

Note that the inc_id method receives two arguments, although only the second (in this case, 5) is passed explicitly in the method call $gizmo->inc_id(5). The first argument, a reference to the $gizmo object, is passed implicitly.

Hope that helps,

Athanasius <°(((>< contra mundum Iustus alius egestas vitae, eros Piratica,

In reply to Re^4: calling sub with object as param by Athanasius
in thread calling sub with object as param by perlnewb4life

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