projekt kivitendo

  my $config            = shift;

  my $period_start_date = shift;

  my $period_end_date = $period_start_date->clone->add(months => $period_length)->subtract(days => 1);

  my @month_names       = ('',

    $new_order->reqdate($period_start_date);

    $new_order->tax_point(

      add_months(

      )->add(days => -1)

    );

    my @items;

sub get_billing_period_length {

  my $self = shift;

}

sub get_order_value_period_length {

  my $self = shift;

  return $self->get_billing_period_length if $self->order_value_periodicity eq 'p';

}

sub add_months {