[ic] usertag in salestax.asc

Carsten Jahnke carstenjahnke at web.de
Wed Aug 4 06:04:41 EDT 2004


I have to calculate taxrates on product basis. From a field in the 
products table I get the taxrate that should be used.

I searched the list and found a posting by Mike where he explained how 
to use a usertag in the salestax.asc file to use dynamic tax rates.

so I put
default	[vatcalc products tax_category]
into the salestax.asc but if I do that and restart IC it just hangs when 
I call the basket page. It then usses 100% CPU (maybe some infinite 
loop?!) and I have to kill the interchange process :(

The usertag just returns a plain value like 0.16. When I put it directly 
into salestax.asc it works fine. (e.g default 0.16)

Can someone help me with that?

Thanks in advance!

The original short message of Mike Heins from Tue, 12 Dec 2000:
The quick and dirty way is to write a UserTag which does it
and then include that in salestax.asc.

UserTag  vat-calc  Order  table	field
UserTag  vat-calc  addAttr
UserTag  vat-calc  Routine <<EOR
sub {
	my ($table, $field, $opt) = @_;

	my $error = sub {
		my $msg = shift;
		return undef;

	my $tax = 0;
	foreach my $item (@$Vend::Items) {
		my $taxrate = tag_data($table, $field, $item->{code});
		$tax += ($taxrate * $item->{quantity});
	return $tax;

(If you put the above in your catalog.cfg instead of interchange.cfg, 
you will
have to make sure you have referenced the products table before you call 

Now this in salestax.asc:

     default	[vat-calc products tax]
     UK	[vat-calc products tax]
     FR	[vat-calc products tax]
     US	0

and this in catalog.cfg:

     SalesTax   country

should do it.

Carsten Jahnke

email: carstenjahnke at web.de

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