// returns the price of a given item minus any included taxes
// for item $stock_id with line price $price,
// with applicable tax rates $tax_group_array or group id $tax_group
-//
function get_tax_free_price_for_item($stock_id, $price, $tax_group, $tax_included, $tax_group_array=null)
{
else
$ret_tax_array = get_tax_group_items_as_array($tax_group);
- //print_r($ret_tax_array);
-
$tax_array = get_taxes_for_item($stock_id, $ret_tax_array);
+
// if no exemptions or taxgroup is empty, then no included/excluded taxes
if ($tax_array == null)
return $price;
-
- $tax_multiplier = 0;
-
- // loop for all items
+ // to avoid rounding errors we have to just subtract taxes from tax_included price.
+ $tax_multiplier = 0;
foreach ($tax_array as $taxitem)
{
- $tax_multiplier += $taxitem["rate"];
+ $tax_multiplier += $taxitem["rate"];
}
- return round($price / (1 + ($tax_multiplier / 100)), user_price_dec());
+
+ $tax = 0;
+ foreach ($tax_array as $taxitem)
+ {
+ $tax += round($price*$taxitem['rate']/(100+$tax_multiplier), user_price_dec());
+ }
+ return $price-$tax;
}
//
// Full price (incl. VAT) for item $stock_id with line price $price,
if ($tax_array == null)
return $price;
- $tax_multiplier = 0;
+ $tax_multiplier = 0;
// loop for all items
foreach ($tax_group_items_array as $tax_group_item)
{
- $skip = false;
+ $skip = false;
// if it's in the exemptions, skip
foreach ($item_tax_type_exemptions as $exemption)
//-----------------------------------------------------------------------------------
// return an array of (tax_type_id, tax_type_name, sales_gl_code, purchasing_gl_code, rate, included_in_price, Value)
-function get_tax_for_items($items, $prices, $shipping_cost, $tax_group, $tax_included=null, $tax_items_array=null)
+function get_tax_for_items($items, $prices, $shipping_cost, $tax_group, $tax_included=null, $tax_items_array=null, $tax_algorithm = null)
{
+ if (!$tax_algorithm)
+ $tax_algorithm = get_company_pref('tax_algorithm');
// first create and set an array with all the tax types of the tax group
if($tax_items_array!=null)
- $ret_tax_array = $tax_items_array;
+ $ret_tax_array = $tax_items_array;
else
- $ret_tax_array = get_tax_group_items_as_array($tax_group);
+ $ret_tax_array = get_tax_group_items_as_array($tax_group);
+ $dec = user_price_dec();
+
+ $fully_exempt = true;
foreach($ret_tax_array as $k=>$t)
+ {
+ if ($t['rate'] !== null)
+ $fully_exempt = false;
$ret_tax_array[$k]['Net'] = 0;
-
+ }
+
+ $ret_tax_array['exempt'] = array('Value'=>0, 'Net'=>0, 'rate' => null, 'tax_type_id' => '', 'sales_gl_code' => '');
+ $dec = user_price_dec();
// loop for all items
for ($i = 0; $i < count($items); $i++)
{
$item_taxes = get_taxes_for_item($items[$i], $ret_tax_array);
-
- if ($item_taxes != null)
+ if ($item_taxes == null || $fully_exempt)
+ {
+ $ret_tax_array['exempt']['Value'] += round2(0, $dec);
+ $ret_tax_array['exempt']['Net'] += $prices[$i];
+ }
+ else
{
+ $tax_multiplier = 0;
+ foreach ($item_taxes as $taxitem)
+ {
+ $tax_multiplier += $taxitem['rate'];
+ }
foreach ($item_taxes as $item_tax)
{
- $index = $item_tax['tax_type_id'];
- if($tax_included==1) {// 2008-11-26 Joe Hunt Taxes are stored without roundings
- $nprice = get_tax_free_price_for_item($items[$i], $prices[$i], $tax_group, $tax_included);
- $ret_tax_array[$index]['Value'] += $prices[$i]-$nprice;
- $ret_tax_array[$index]['Net'] += $nprice;
- } else {
- $ret_tax_array[$index]['Value'] += ($prices[$i] * $item_tax['rate'] / 100);
- $ret_tax_array[$index]['Net'] += $prices[$i];
+ if ($item_tax['rate'] !== null) {
+ $index = $item_tax['tax_type_id'];
+ if ($tax_included == 1) {
+ $ret_tax_array[$index]['Value'] += round2($prices[$i]*$item_tax['rate']/(100+$tax_multiplier), $dec);
+ $ret_tax_array[$index]['Net'] += round2($prices[$i]*100/(100+$tax_multiplier), $dec);
+ } else {
+ $ret_tax_array[$index]['Value'] += round2($prices[$i] * $item_tax['rate'] / 100, $dec);
+ $ret_tax_array[$index]['Net'] += $prices[$i];
+ }
}
}
}
}
-
// add the shipping taxes, only if non-zero, and only if tax group taxes shipping
if ($shipping_cost != 0)
{
- $item_taxes = get_shipping_tax_as_array();
+ $item_taxes = get_shipping_tax_as_array($tax_group);
if ($item_taxes != null)
{
if ($tax_included == 1)
$tax_rate += $item_tax['rate'];
}
}
- $shipping_net = round2($shipping_cost / (1 + ($tax_rate / 100)), user_price_dec());
- }
+ $shipping_net = round2($shipping_cost*100/(100+$tax_rate), $dec);
+ }
foreach ($item_taxes as $item_tax)
{
$index = $item_tax['tax_type_id'];
- if(isset($ret_tax_array[$index])) {
- if($tax_included==1) {// 2008-11-26 Joe Hunt Taxes are stored without roundings
- $ret_tax_array[$index]['Value'] += ($shipping_net * $item_tax['rate'] / 100);
- $ret_tax_array[$index]['Net'] += $shipping_net;
- } else {
- $ret_tax_array[$index]['Value'] += ($shipping_cost * $item_tax['rate'] / 100);
- $ret_tax_array[$index]['Net'] += $shipping_cost;
- }
+ if ($item_tax['rate'] !== null && $ret_tax_array[$index]['rate'] !== null) {
+ if($tax_included==1) {
+ $ret_tax_array[$index]['Value'] += round2($shipping_cost*$item_tax['rate']/(100+$tax_rate), $dec);
+ $ret_tax_array[$index]['Net'] += $shipping_net;
+ } else {
+ $ret_tax_array[$index]['Value'] += round2($shipping_cost * $item_tax['rate'] / 100, $dec);
+ $ret_tax_array[$index]['Net'] += $shipping_cost;
+ }
}
}
}
}
-
- //print_r($ret_tax_array);
+
+ if ($tax_algorithm == TCA_TOTALS ) {
+ // update taxes with
+ foreach($ret_tax_array as $index => $item_tax) {
+ $ret_tax_array[$index]['Value'] = round2($item_tax['Net'] * $item_tax['rate'] / 100, $dec);
+ }
+ }
return $ret_tax_array;
}
-?>
\ No newline at end of file
projects / fa-stable.git / blobdiff