+sub calculate_arap {
+ my ($self,$buysell,$taxincluded,$exchangerate,$roundplaces) = @_;
+
+ # this function is used to calculate netamount, total_tax and amount for AP and
+ # AR transactions (Kreditoren-/Debitorenbuchungen) by going over all lines
+ # (1..$rowcount)
+ # Thus it needs a fully prepared $form to work on.
+ # calculate_arap assumes $form->{amount_$i} entries still need to be parsed
+
+ # The calculated total values are all rounded (default is to 2 places) and
+ # returned as parameters rather than directly modifying form. The aim is to
+ # make the calculation of AP and AR behave identically. There is a test-case
+ # for this function in t/form/arap.t
+
+ # While calculating the totals $form->{amount_$i} and $form->{tax_$i} are
+ # modified and formatted and receive the correct sign for writing straight to
+ # acc_trans, depending on whether they are ar or ap.
+
+ # check parameters
+ die "taxincluded needed in Form->calculate_arap" unless defined $taxincluded;
+ die "exchangerate needed in Form->calculate_arap" unless defined $exchangerate;
+ die 'illegal buysell parameter, has to be \"buy\" or \"sell\" in Form->calculate_arap\n' unless $buysell =~ /^(buy|sell)$/;
+ $roundplaces = 2 unless $roundplaces;
+
+ my $sign = 1; # adjust final results for writing amount to acc_trans
+ $sign = -1 if $buysell eq 'buy';
+
+ my ($netamount,$total_tax,$amount);
+
+ my $tax;
+
+ # parse and round amounts, setting correct sign for writing to acc_trans
+ for my $i (1 .. $self->{rowcount}) {
+ $self->{"amount_$i"} = $self->round_amount($self->parse_amount(\%::myconfig, $self->{"amount_$i"}) * $exchangerate * $sign, $roundplaces);
+
+ $amount += $self->{"amount_$i"} * $sign;
+ }
+
+ for my $i (1 .. $self->{rowcount}) {
+ next unless $self->{"amount_$i"};
+ ($self->{"tax_id_$i"}) = split /--/, $self->{"taxchart_$i"};
+ my $tax_id = $self->{"tax_id_$i"};
+
+ my $selected_tax = SL::DB::Manager::Tax->find_by(id => "$tax_id");
+
+ if ( $selected_tax ) {
+
+ if ( $buysell eq 'sell' ) {
+ $self->{AR_amounts}{"tax_$i"} = $selected_tax->chart->accno unless $selected_tax->taxkey == 0;
+ } else {
+ $self->{AP_amounts}{"tax_$i"} = $selected_tax->chart->accno unless $selected_tax->taxkey == 0;
+ };
+
+ $self->{"taxkey_$i"} = $selected_tax->taxkey;
+ $self->{"taxrate_$i"} = $selected_tax->rate;
+ };
+
+ ($self->{"amount_$i"}, $self->{"tax_$i"}) = $self->calculate_tax($self->{"amount_$i"},$self->{"taxrate_$i"},$taxincluded,$roundplaces);
+
+ $netamount += $self->{"amount_$i"};
+ $total_tax += $self->{"tax_$i"};
+
+ }
+ $amount = $netamount + $total_tax;
+
+ # due to $sign amount_$i und tax_$i already have the right sign for acc_trans
+ # but reverse sign of totals for writing amounts to ar
+ if ( $buysell eq 'buy' ) {
+ $netamount *= -1;
+ $amount *= -1;
+ $total_tax *= -1;
+ };
+
+ return($netamount,$total_tax,$amount);
+}
+
projects / mfinanz.git / blobdiff