2 /**********************************************************************
3 Copyright (C) FrontAccounting, LLC.
4 Released under the terms of the GNU General Public License, GPL,
5 as published by the Free Software Foundation, either version 3
6 of the License, or (at your option) any later version.
7 This program is distributed in the hope that it will be useful,
8 but WITHOUT ANY WARRANTY; without even the implied warranty of
9 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
10 See the License here <http://www.gnu.org/licenses/gpl-3.0.html>.
11 ***********************************************************************/
12 include_once($path_to_root . "/taxes/db/tax_groups_db.inc");
13 include_once($path_to_root . "/taxes/db/tax_types_db.inc");
14 include_once($path_to_root . "/taxes/db/item_tax_types_db.inc");
16 //---------------------------------------------------------------------------------
18 // returns the price of a given item minus any included taxes
19 // for item $stock_id with line price $price,
20 // with applicable tax rates $tax_group_array or group id $tax_group
23 function get_tax_free_price_for_item($stock_id, $price, $tax_group, $tax_included, $tax_group_array=null)
25 // if price is zero, then can't be taxed !
29 if ($tax_included==0) return $price;
31 // if array already read, then make a copy and use that
33 $ret_tax_array = $tax_group_array;
35 $ret_tax_array = get_tax_group_items_as_array($tax_group);
37 //print_r($ret_tax_array);
39 $tax_array = get_taxes_for_item($stock_id, $ret_tax_array);
40 // if no exemptions or taxgroup is empty, then no included/excluded taxes
41 if ($tax_array == null)
48 foreach ($tax_array as $taxitem)
50 $tax_multiplier += $taxitem["rate"];
52 return round($price / (1 + ($tax_multiplier / 100)), user_price_dec());
55 // Full price (incl. VAT) for item $stock_id with line price $price,
56 // with tax rates $tax_group_array or applicable group $tax_group
58 function get_full_price_for_item($stock_id, $price, $tax_group, $tax_included, $tax_group_array=null)
60 // if price is zero, then can't be taxed !
64 if ($tax_included==1) return $price;
66 // if array already read, then make a copy and use that
68 $ret_tax_array = $tax_group_array;
70 $ret_tax_array = get_tax_group_items_as_array($tax_group);
72 //print_r($ret_tax_array);
74 $tax_array = get_taxes_for_item($stock_id, $ret_tax_array);
75 // if no exemptions or taxgroup is empty, then no included/excluded taxes
76 if ($tax_array == null)
83 foreach ($tax_array as $taxitem)
85 $tax_multiplier += $taxitem["rate"];
88 return round($price * (1 + ($tax_multiplier / 100)), user_price_dec());
91 //---------------------------------------------------------------------------------
92 // return an array of (tax_type_id, tax_type_name, sales_gl_code, purchasing_gl_code, rate)
94 function get_taxes_for_item($stock_id, $tax_group_items_array)
96 $item_tax_type = get_item_tax_type_for_item($stock_id);
98 // if the item is exempt from all taxes then return 0
99 if ($item_tax_type["exempt"])
102 // get the exemptions for this item tax type
103 $item_tax_type_exemptions_db = get_item_tax_type_exemptions($item_tax_type["id"]);
105 // read them all into an array to minimize db querying
106 $item_tax_type_exemptions = array();
107 while ($item_tax_type_exemp = db_fetch($item_tax_type_exemptions_db))
109 $item_tax_type_exemptions[] = $item_tax_type_exemp["tax_type_id"];
112 $ret_tax_array = array();
114 // if any of the taxes of the tax group are in the exemptions, then skip
115 foreach ($tax_group_items_array as $tax_group_item)
120 // if it's in the exemptions, skip
121 foreach ($item_tax_type_exemptions as $exemption)
123 if (($tax_group_item['tax_type_id'] == $exemption))
132 $index = $tax_group_item['tax_type_id'];
133 $ret_tax_array[$index] = $tax_group_item;
137 return $ret_tax_array;
139 //-----------------------------------------------------------------------------------
140 // return an array of (tax_type_id, tax_type_name, sales_gl_code, purchasing_gl_code, rate, included_in_price, Value)
142 function get_tax_for_items($items, $prices, $shipping_cost, $tax_group, $tax_included=null, $tax_items_array=null)
144 // first create and set an array with all the tax types of the tax group
145 if($tax_items_array!=null)
146 $ret_tax_array = $tax_items_array;
148 $ret_tax_array = get_tax_group_items_as_array($tax_group);
150 foreach($ret_tax_array as $k=>$t)
151 $ret_tax_array[$k]['Net'] = 0;
153 // loop for all items
154 for ($i = 0; $i < count($items); $i++)
156 $item_taxes = get_taxes_for_item($items[$i], $ret_tax_array);
158 if ($item_taxes != null)
160 foreach ($item_taxes as $item_tax)
162 $index = $item_tax['tax_type_id'];
163 if($tax_included==1) {// 2008-11-26 Joe Hunt Taxes are stored without roundings
164 $nprice = get_tax_free_price_for_item($items[$i], $prices[$i], $tax_group, $tax_included);
165 $ret_tax_array[$index]['Value'] += $prices[$i]-$nprice;
166 $ret_tax_array[$index]['Net'] += $nprice;
168 $ret_tax_array[$index]['Value'] += ($prices[$i] * $item_tax['rate'] / 100);
169 $ret_tax_array[$index]['Net'] += $prices[$i];
175 // add the shipping taxes, only if non-zero, and only if tax group taxes shipping
176 if ($shipping_cost != 0)
178 $item_taxes = get_shipping_tax_as_array();
179 if ($item_taxes != null)
181 if ($tax_included == 1)
184 foreach ($item_taxes as $item_tax)
186 $index = $item_tax['tax_type_id'];
187 if(isset($ret_tax_array[$index])) {
188 $tax_rate += $item_tax['rate'];
191 $shipping_net = round2($shipping_cost / (1 + ($tax_rate / 100)), user_price_dec());
193 foreach ($item_taxes as $item_tax)
195 $index = $item_tax['tax_type_id'];
196 if(isset($ret_tax_array[$index])) {
197 if($tax_included==1) {// 2008-11-26 Joe Hunt Taxes are stored without roundings
198 $ret_tax_array[$index]['Value'] += ($shipping_net * $item_tax['rate'] / 100);
199 $ret_tax_array[$index]['Net'] += $shipping_net;
201 $ret_tax_array[$index]['Value'] += ($shipping_cost * $item_tax['rate'] / 100);
202 $ret_tax_array[$index]['Net'] += $shipping_cost;
209 //print_r($ret_tax_array);
211 return $ret_tax_array;