did you mean this? (note the ->member in there) or did you mean for dump_new_id to be in the Datnum package? 
sub Dataset::dump_new_id {
    my $self = shift();
    print "\n\n new_id is undefined\n\n" unless defined ($self->member
+->{new_id});
}

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In reply to Re: Overriding methods in Class::Struct by davidrw
in thread Overriding methods in Class::Struct by Anonymous Monk

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