projekt kivitendo

sub invoice_type {

  my ($self) = @_;

  return 'ar_transaction'     if !$self->invoice;

  return 'credit_note'        if $self->type eq 'credit_note' && $self->amount < 0 && !$self->storno;

  return 'invoice_storno'     if $self->type ne 'credit_note' && $self->amount < 0 &&  $self->storno;

  return 'credit_note_storno' if $self->type eq 'credit_note' && $self->amount > 0 &&  $self->storno;

  return 'invoice';

}

sub displayable_state {

  my $self = shift;

  return $self->closed ? $::locale->text('closed') : $::locale->text('open');

}