X-Git-Url: http://wagnertech.de/gitweb/gitweb.cgi/mfinanz.git/blobdiff_plain/c979352b982f25a5548a08d2ab06d3059479b5f2..0e83d54de99fbb7e0ab6471eb2c70db9a0b53466:/SL/DB/Helper/PriceTaxCalculator.pm

diff --git a/SL/DB/Helper/PriceTaxCalculator.pm b/SL/DB/Helper/PriceTaxCalculator.pm
index 9a2718415..80c804728 100644
--- a/SL/DB/Helper/PriceTaxCalculator.pm
+++ b/SL/DB/Helper/PriceTaxCalculator.pm
@@ -83,27 +83,31 @@ sub _calculate_item {
   my ($self, $item, $idx, $data, %params) = @_;
 
   my $part       = SL::DB::Part->load_cached($item->parts_id);
-  return unless $item->part;
+  return unless $part;
 
   my $part_unit  = $data->{units_by_name}->{ $part->unit };
   my $item_unit  = $data->{units_by_name}->{ $item->unit };
 
   croak("Undefined unit " . $part->unit) if !$part_unit;
-  croak("Undefined unit " . $item->unit)       if !$item_unit;
+  croak("Undefined unit " . $item->unit) if !$item_unit;
 
   $item->base_qty($item_unit->convert_to($item->qty, $part_unit));
   $item->fxsellprice($item->sellprice) if $data->{is_invoice};
 
   my $num_dec   = max 2, _num_decimal_places($item->sellprice);
-  my $discount  = _round($item->sellprice * ($item->discount || 0), $num_dec);
-  my $sellprice = _round($item->sellprice - $discount,              $num_dec);
+
+  $item->discount(0) if !$item->discount;
+
+  # don't include rounded discount into sellprice for calculation
+  # any time the sellprice is multiplied with qty discount has to be considered as part of the multiplication
+  my $sellprice = $item->sellprice;
 
   $item->price_factor(      ! $item->price_factor_obj   ? 1 : ($item->price_factor_obj->factor   || 1));
   $item->marge_price_factor(! $part->price_factor ? 1 : ($part->price_factor->factor || 1));
-  my $linetotal = _round($sellprice * $item->qty / $item->price_factor, 2) * $data->{exchangerate};
-  $linetotal    = _round($linetotal,                                    2);
+  my $linetotal = _round($sellprice * (1 - $item->discount) * $item->qty / $item->price_factor, 2) * $data->{exchangerate};
+  $linetotal    = _round($linetotal,                                                            2);
 
-  $data->{invoicediff} += $sellprice * $item->qty * $data->{exchangerate} / $item->price_factor - $linetotal if $self->taxincluded;
+  $data->{invoicediff} += $sellprice * (1 - $item->discount) * $item->qty * $data->{exchangerate} / $item->price_factor - $linetotal if $self->taxincluded;
 
   my $linetotal_cost = 0;
 
@@ -141,8 +145,6 @@ sub _calculate_item {
     die "tax_amount != 0 but no chart_id for taxkey " . $taxkey->id . " tax " . $taxkey->tax->id;
   }
 
-  $self->netamount($self->netamount + $sellprice * $item->qty / $item->price_factor);
-
   my $chart = $part->get_chart(type => $data->{is_sales} ? 'income' : 'expense', taxzone => $self->taxzone_id);
   $data->{amounts}->{ $chart->id }           ||= { taxkey => $taxkey->taxkey_id, tax_id => $taxkey->tax_id, amount => 0 };
   $data->{amounts}->{ $chart->id }->{amount}  += $linetotal;
@@ -159,10 +161,12 @@ sub _calculate_item {
 
   $data->{last_incex_chart_id} = $chart->id if $data->{is_sales};
 
+  my $item_sellprice = _round($sellprice * (1 - $item->discount), $num_dec);
+
   push @{ $data->{items} }, {
     linetotal      => $linetotal,
     linetotal_cost => $linetotal_cost,
-    sellprice      => $sellprice,
+    sellprice      => $item_sellprice,
     tax_amount     => $tax_amount,
     taxkey_id      => $taxkey->id,
   };
@@ -181,6 +185,8 @@ sub _calculate_amounts {
     $data->{taxes}->{$chart_id}  = $rounded;
   }
 
+  $self->netamount(sum map { $_->{amount} } values %{ $data->{amounts} });
+
   my $amount    = _round(($self->netamount + $tax_diff) * $data->{exchangerate}, 2);
   my $diff      = $amount - ($self->netamount + $tax_diff) * $data->{exchangerate};
   my $netamount = $amount;
@@ -244,7 +250,7 @@ sub _calculate_part_item {
 
     next unless $qty;
 
-    my $linetotal = _round(($entry->sellprice * $qty) / $base_factor, 2);
+    my $linetotal = _round(($entry->sellprice * (1 - $entry->discount) * $qty) / $base_factor, 2);
 
     $data->{amounts_cogs}->{ $expense_income_chart->id } -= $linetotal;
     $data->{amounts_cogs}->{ $inventory_chart->id      } += $linetotal;