New tax system - sales side
[fa-stable.git] / purchasing / includes / supp_trans_class.inc
index 107890df0692debc201f6da032e2a596cfd614e9..ddb55681e038a515dbe36a0353b840c2da6bc678 100644 (file)
@@ -16,31 +16,34 @@ include_once($path_to_root . "/taxes/tax_calc.inc");
 
 class supp_trans 
 {
+       //db interface
+       var $trans_no;
+       var $trans_type;        // invoice or credit
+       var $supplier_id;
+       var $reference;
+       var $supp_reference;
+       var $tran_date;
+       var $due_date;
+       var $ov_amount;
+       var $ov_discount;
+       var $ov_gst;
+       var $ex_rate;
+
+       var $tax_included;
 
        var $grn_items; /*array of objects of class grn_item using the id as the pointer */
        var $gl_codes; /*array of objects of class gl_codes using a counter as the pointer */
-       var $supplier_id;
+       var $Comments;
+       //---
+
        var $supplier_name;
        var $terms;
-       var $ex_rate;
        
        var $tax_description;
        var $tax_group_id;
-       var $tax_included;
-       
-       var $trans_type;        // invoice or credit
-       var $trans_no;
 
-       var $Comments;
-       var $tran_date;
-       var $due_date;
        var $src_docs = array();                // source invoice for this credit note (if any)
 
-       var $supp_reference;
-       var $reference;
-       var $ov_amount;
-       var $ov_discount;
-       var $ov_gst;
        var $credit = 0;
        var $currency;
        var $tax_overrides = array();           // array of taxes manually inserted during sales invoice entry
@@ -63,10 +66,10 @@ class supp_trans
                $this->gl_codes = array();
                if ($trans_no) {
                        read_supp_invoice($trans_no, $trans_type, $this);
+
                        if ($trans_type == ST_SUPPCREDIT)
-                       {
                                $this->src_docs = find_src_invoices($trans_no);
-                       }
+
                        read_supplier_details_to_trans($this, $this->supplier_id);
                }
        }
@@ -75,10 +78,12 @@ class supp_trans
                $qty_recd, $prev_quantity_inv, $this_quantity_inv, $order_price, $chg_price, 
                $std_cost_unit=null, $gl_code='')
        {
-               $this->grn_items[$grn_item_id] = new grn_item($grn_item_id, $po_detail_item, 
+               $line = new grn_item($grn_item_id, $po_detail_item, 
                        $item_code, $item_description, $qty_recd, $prev_quantity_inv, $this_quantity_inv, 
                        $order_price, $chg_price, $std_cost_unit, $gl_code, $this->tax_included);
 
+               $line->cart = $this;
+               $this->grn_items[$grn_item_id] = $line;
                $this->src_docs = find_src_invoices($this);
 
                unset($this->tax_overrides); // cancel tax overrides after cart change
@@ -119,27 +124,18 @@ class supp_trans
                $this->gl_codes = array();
        }
 
-    function get_taxes($tax_group_id=null, $shipping_cost=0, $gl_codes=true)
+    function get_taxes($gl_codes=true)
     {
        $items = array();
        $prices = array();
 
-        if ($tax_group_id == null)
-               $tax_group_id = $this->tax_group_id;
-
-               // preload the taxgroup
-               $tax_group = get_tax_group_items_as_array($tax_group_id);
-
         foreach ($this->grn_items as $ln_itm) 
         {
                $items[] = $ln_itm->item_code;
-               $prices[] =round( ($ln_itm->this_quantity_inv * $ln_itm->chg_price),
-                               user_price_dec());
+               $prices[] = round( $ln_itm->this_quantity_inv * $ln_itm->chg_price, user_price_dec());
         }
 
-        if ($tax_group_id == null)
-               $tax_group_id = $this->tax_group_id;
-        $taxes = get_tax_for_items($this->trans_type, $items, $prices, $shipping_cost, $tax_group_id, 
+        $taxes = get_tax_for_items($this->trans_type, $items, $prices, 0, $this->tax_group_id, 
                $this->tax_included);
 
                if (isset($this->tax_overrides))
@@ -149,7 +145,7 @@ class supp_trans
                        }
 
                // Taxes included in gl_codes table have exact value, but count to overrides as well.
-               // Therefore when we want to now taxes only for items (gl_codes==false),
+               // Therefore when we want to know taxes only for items (gl_codes==false),
                // we have to subtract gl_taxes from override values.
                foreach ($this->gl_codes as $gl_code)
                {
@@ -162,24 +158,17 @@ class supp_trans
                                        $taxes[$index]['Override'] -= $gl_code->amount;
                        }
                }
-
         return $taxes;
     }
        //
        //      Returns total invoice amount without taxes.
        //
-    function get_total_taxfree($tax_group_id=null)
+    function get_total_taxfree()
     {
        $total = 0;
 
-               // preload the taxgroup !
-               if ($tax_group_id != null)
-                       $tax_group = get_tax_group_items_as_array($tax_group_id);
-               else
-                       $tax_group = null;
-
                foreach ($this->grn_items as $ln_itm)
-               $total += round(($ln_itm->this_quantity_inv * $ln_itm->taxfree_charge_price($tax_group_id, $tax_group)),
+               $total += round(($ln_itm->this_quantity_inv * $ln_itm->taxfree_charge_price()),
                         user_price_dec());
 
                foreach ($this->gl_codes as $gl_line)
@@ -189,6 +178,7 @@ class supp_trans
                }
                return $total;
     }
+
        //
        //      Returns transaction total 
        //
@@ -207,11 +197,15 @@ class supp_trans
                return $total;
        }
 
+       /*
+               Split line value to cost and taxes.
+               Stores calculated amounts in $line->gl_amounts array.
+       */
        function split_line_values()
        {
                // split nominal line values
                foreach($this->grn_items as $line)
-                       $line->split_item_value($this);
+                       $line->split_item_value();
 
                // Exact tax values are currently entered as tax totals, so we need to move the differences back on line level.
                // currently first item with given tax type will be fixed with the calculated difference
@@ -221,11 +215,11 @@ class supp_trans
                        if ($tax['Value'] != 0 && isset($tax['Override']) && ($tax['Value'] != $tax['Override']))
                        {
                                foreach($this->grn_items as $id => $line)
-                                       if ($line->gl_amounts[0]['tax_type_id'] == $tax_id) // assumed single tax rate on item, so always gl_mount[0] is valid
+                                       if ($line->gl_amounts[0]['tax_type_id'] == $tax_id) // assumed single tax rate on item, so always gl_amounts[0] is valid
                                        {
                                                $diff = $tax['Override'] - $tax['Value'];
                                                $this->grn_items[$id]->gl_amounts[0]['Value'] += $diff;
-                                               if ($this->vat_category() != VC_NONDEDUCT)
+                                               if ($line->vat_category != VC_NONDEDUCT)
                                                        $this->grn_items[$id]->gl_amounts[0]['Deductible'] += $diff;
                                                else
                                                        $this->grn_items[$id]->gl_amounts['Cost'] += $diff;
@@ -248,20 +242,25 @@ class grn_item
 all the info to do the necessary entries without looking up ie additional queries of the database again */
 
        var $id;
+
+       var $gl_code;
+
        var $po_detail_item;
        var $item_code;
        var $item_description;
+       var $this_quantity_inv;
+       var $chg_price;
+
        var $qty_recd;
        var $prev_quantity_inv;
-       var $this_quantity_inv;
        var $order_price;
-       var $chg_price;
        var $std_cost_unit;
-       var $gl_code;
        var $tax_included;
        var $gl_amounts;        // splited line value (after call to split_line_value method
        var $vat_category;
 
+       var $cart; // line context
+
        function __construct($id, $po_detail_item, $item_code, $item_description, $qty_recd, 
                $prev_quantity_inv, $this_quantity_inv, $order_price, $chg_price,
                $std_cost_unit, $gl_code, $tax_included)
@@ -274,9 +273,9 @@ all the info to do the necessary entries without looking up ie additional querie
                $this->qty_recd = $qty_recd;
                $this->prev_quantity_inv = $prev_quantity_inv;
                $this->this_quantity_inv = $this_quantity_inv;
-               $this->order_price =$order_price;
+               $this->order_price = $order_price;              // price on order
                $this->chg_price = $chg_price;
-               $this->std_cost_unit = $std_cost_unit;
+               $this->std_cost_unit = $std_cost_unit;  // provisional cost for clearing
                $this->gl_code = $gl_code;
                $this->tax_included = $tax_included;
 
@@ -284,34 +283,28 @@ all the info to do the necessary entries without looking up ie additional querie
                $this->vat_category = $opts['vat_category'];
        }
 
-       function full_charge_price($tax_group_id, $trans_type=ST_PURCHORDER)
-       {
-               return get_full_price_for_item($trans_type, $this->item_code, 
-                 $this->chg_price, $tax_group_id, $this->tax_included);
-       }
-
-       function taxfree_charge_price($tax_group_id, $trans_type=ST_PURCHORDER)
-       {
-               return get_tax_free_price_for_item($trans_type, $this->item_code, $this->chg_price, 
-                 $tax_group_id, $this->tax_included);
-       }
+//     function full_charge_price($tax_group_id, $trans_type=ST_PURCHORDER)
+//     {
+//             return get_full_price_for_item($trans_type, $this->item_code, 
+//               $this->chg_price, $tax_group_id, $this->tax_included);
+//     }
 
-       function taxfree_value($tax_group_id, $trans_type=ST_PURCHORDER)
+       function taxfree_charge_price()
        {
-               return get_tax_free_price_for_item($trans_type, $this->item_code, $this->this_quantity_inv * $this->chg_price, 
-                 $tax_group_id, $this->tax_included, $tax_group);
+               $this->split_item_value();
+               return $this->gl_amounts['Net'];
        }
 
        /*
                Splits item value to parts posted to GL.
        */
-       function split_item_value($cart)
+       function split_item_value()
        {
 
         $vat_factor = 1;
 
-               return $this->gl_amounts = split_item_price($this->item_code, $this->chg_price*$this->this_quantity_inv, $cart->tax_group_id, $cart->tax_included, 
-                       ST_SUPPINVOICE, $vat_factor, $cart->tran_date);
+               return $this->gl_amounts = split_item_price($this->item_code, $this->chg_price*$this->this_quantity_inv, $this->cart->tax_group_id, $this->cart->tax_included, 
+                       $this->cart->trans_type, $vat_factor);
        }
 }