+ var $tax_group_array = null; // saves db queries
+ var $price_factor; // ditto for price calculations
+
+ var $pos; // user assigned POS
+ var $cash; // cash transaction
+ var $cash_account;
+ var $account_name;
+ var $cash_discount; // not used as of FA 2.1
+ //-------------------------------------------------------------------------
+ //
+ // $trans_no==0 => open new/direct document
+ // $trans_no!=0 && $view==false => read for view
+ // $trans_no!=0 && $view==true => read for edit (qty update from parent doc)
+ //
+ function Cart($type, $trans_no=0, $view=false ) {
+ /*Constructor function initialises a new shopping cart */
+ $this->line_items = array();
+ $this->sales_type = "";
+ $this->trans_type = 30;
+ $this->read($type, $trans_no, $view );
+ }
+
+ //-------------------------------------------------------------------------
+ // Reading document into cart
+ //
+ function read($type, $trans_no = 0, $view=false ) {
+
+ if (!is_array($trans_no)) $trans_no = array($trans_no);
+ if ($trans_no[0]) {
+ if ($type == 30) { // sales order
+ read_sales_order($trans_no[0], $this);
+ if ($view) { // prepare for DN/IV entry
+ for($line_no = 0; $line_no < count($this->line_items); $line_no++) {
+ $line = &$this->line_items[$line_no];
+ $line->src_id = $line->id; // save src line ids for update
+ $line->qty_dispatched = $line->quantity - $line->qty_done;
+ }
+ }
+ } else { // derivative transaction
+ read_sales_trans($type, $trans_no, $this);
+ if ($this->order_no) { // free hand credit notes have no order_no
+ $sodata = get_sales_order_header($this->order_no);
+ $this->cust_ref = $sodata["customer_ref"];
+ // currently currency is hard linked to debtor account
+ // $this->customer_currency = $sodata["curr_code"];
+ $this->delivery_to = $sodata["deliver_to"];
+ $this->delivery_address = $sodata["delivery_address"];
+ }
+ if (!$view && ($type!=11 || $this->trans_link!=0)) {
+ $src_type = get_parent_type($type);
+ $src_details = 0;
+ if ($src_type == 30) { // get src data from sales_orders
+ $this->src_docs = array( $sodata['order_no']=>$sodata['version']);
+ $srcdetails = get_sales_order_details($this->order_no);
+ } else { // get src_data from debtor_trans
+ $this->src_docs = get_customer_trans_version($src_type, get_parent_trans($type,$trans_no[0]));
+ $srcdetails = get_customer_trans_details($src_type,array_keys($this->src_docs));
+ }
+ // calculate & save: qtys on other docs and free qtys on src doc
+ $line_no = 0;
+ for($line_no = 0; $srcline = db_fetch($srcdetails); $line_no++) {
+ $sign = 1; // $type==13 ? 1 : -1; // this is strange debtor_trans atavism
+ $line = &$this->line_items[$line_no];
+
+ $line->src_id = $srcline['id']; // save src line ids for update
+ $line->qty_old = $line->qty_dispatched = $line->quantity;
+ $line->quantity += $sign * ($srcline['quantity'] - $srcline['qty_done']); // add free qty on src doc
+ }
+ } else {
+ for($line_no = 0; $line_no < count($this->line_items); $line_no++) {
+ $line = &$this->line_items[$line_no];
+ $line->src_id = $line->id; // save src line ids for update
+ $line->qty_dispatched = $line->quantity;
+ }
+ }
+ }
+ } else {
+ $this->trans_type = $type;
+ $this->trans_no = 0;
+ // set new sales document defaults here
+ if (get_global_customer() != reserved_words::get_all())
+ $this->customer_id = get_global_customer();
+ else
+ $this->customer_id = '';
+ $this->document_date = Today();
+ if (!is_date_in_fiscalyear($this->document_date))
+ $this->document_date = end_fiscalyear();
+ $this->reference = references::get_next($this->trans_type);
+ if ($type == 10) {
+ $this->due_date =
+ get_invoice_duedate($this->customer_id, $this->document_date);
+ $this->pos = user_pos();
+ $pos = get_sales_point($this->pos);
+ $this->cash = !$pos['credit_sale'];
+ if (!$pos['cash_sale'] || !$pos['credit_sale'])
+ $this->pos = -1; // mark not editable payment type
+ else
+ $this->cash = date_diff($this->due_date, Today(), 'd')<2;
+ if ($this->cash) {
+ $this->Location = $pos['pos_location'];
+ $this->location_name = $pos['location_name'];
+ $this->cash_account = $pos['account_code'];
+ $this->account_name = $pos['bank_account_name'];
+ }
+ } else
+ $this->due_date =
+ add_days($this->document_date, sys_prefs::default_delivery_required_by());
+ }
+ }