+ $items = $this->line_items;
+ if (@$SysPrefs->sort_sales_items)
+ uasort($items, array($this, '_cmp_lines'));
+
+ return $items;
+ }
+ //
+ // Prepare cart to new child document entry, just after initial parent doc read.
+ //
+ function prepare_child($type)
+ {
+ global $Refs;
+
+ if ($type === true)
+ $type = get_child_type($this->trans_type);
+
+ $this->trans_type = $type;
+ $this->reference = $Refs->get_next($this->trans_type, null, array('date' => $this->document_date,
+ 'customer' => $this->customer_id, 'branch' => $this->Branch));
+ if ($type == ST_CUSTCREDIT)
+ $this->src_date = $this->document_date;
+
+ $this->document_date = new_doc_date();
+
+ for($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 = $type == ST_CUSTCREDIT ? '0' :
+ (($this->prepaid && $type == ST_SALESINVOICE) ? $line->quantity : $line->quantity - $line->qty_done);
+ $line->qty_old = 0;
+ }
+ unset($line);
+
+ if ($type == ST_CUSTDELIVERY) {
+ $this->order_no = key($this->trans_no);
+ $cust = get_customer($this->customer_id);
+ $this->dimension_id = $cust['dimension_id'];
+ $this->dimension2_id = $cust['dimension2_id'];
+ }
+ if ($type == ST_SALESINVOICE) {
+ $this->due_date = get_invoice_duedate($this->payment, $this->document_date);
+ }
+
+ $this->src_docs = $this->trans_no;
+ $this->trans_no = 0;
+ }
+
+ //
+ // Prepares transaction for reedition updating with parent transaction data
+ //
+ function set_parent_constraints($sodata, $src_no) {
+
+ $srcdetails = get_sales_parent_lines($this->trans_type, $src_no);
+ $src_type = get_parent_type($this->trans_type);
+
+ // calculate & save: qtys on other docs and free qtys on src doc
+ $line_no = 0; $src_docs = array();
+ // Loop speed optimisation below depends on fact
+ // that child line_items contains subset of parent lines in _the_same_ order !
+ while (($line_no < count($this->line_items)) && ($srcline = db_fetch($srcdetails))) {
+ $line = &$this->line_items[$line_no];
+ $src_docs[] = $src_type == ST_SALESORDER ? $srcline['order_no'] : $srcline['debtor_trans_no'];
+ while($srcline['id'] != $line->src_id) // Logic : This will increment the line_items array till sales_order line is matched.
+ { // Fixes Delivery note bug : Parent constraints not working if sales order line deleted after delivery
+ $line_no++;
+ $line = &$this->line_items[$line_no];
+ }
+ if ($srcline['id'] == $line->src_id) {
+ if ($this->trans_type == ST_SALESINVOICE)
+ $line->src_no = $srcline['debtor_trans_no'];
+ $line->qty_old = $line->qty_dispatched = $line->quantity;
+ $line->quantity += $srcline['quantity'] -
+ ($src_type==ST_SALESORDER ? $srcline['qty_sent'] : $srcline['qty_done']); // add free qty on src doc
+ $line_no++;
+ }
+ }
+
+ if ($src_type == ST_SALESORDER || $src_type == 0) {
+ $this->src_docs = array( $sodata['order_no']=>$sodata['version']);
+ } else {
+ // get src_data from debtor_trans
+ $this->src_docs = get_customer_trans_version($src_type, array_unique($src_docs));
+ }
+ }
+ //-------------------------------------------------------------------------
+ // Reading document into cart
+ //
+ function read($type, $trans_no=0, $prepare_child=false) {
+
+ global $SysPrefs, $Refs;
+
+ if (!is_array($trans_no)) $trans_no = array($trans_no);
+
+ if ($trans_no[0]) { // read old transaction
+ if ($type == ST_SALESORDER || $type == ST_SALESQUOTE) { // sales order || sales quotation
+ read_sales_order($trans_no[0], $this, $type);
+ } else { // other type of sales transaction
+ read_sales_trans($type, $trans_no, $this);
+ $this->prepayments = get_payments_for($trans_no[0], $type);
+ if ($this->order_no) { // free hand credit notes have no order_no
+ $sodata = get_sales_order_header($this->order_no, ST_SALESORDER);
+ $this->cust_ref = $sodata["customer_ref"];
+ // currently currency is hard linked to debtor account
+ $this->delivery_to = $sodata["deliver_to"];
+ $this->delivery_address = $sodata["delivery_address"];
+ // child transaction reedition - update with parent info unless it is freehand
+ if (!$this->is_prepaid() && !$prepare_child) // this is read for view/reedition
+ $this->set_parent_constraints($sodata, $trans_no[0]);
+ }
+ }
+ // convert document into child and prepare qtys for entry
+ if ($prepare_child)
+ $this->prepare_child($prepare_child);
+
+ } else { // new document
+ $this->trans_type = $type;
+ $this->trans_no = 0;
+ $this->customer_currency = get_company_currency();
+ // set new sales document defaults here
+ if (get_global_customer() != ALL_TEXT)
+ $this->customer_id = get_global_customer();
+ else
+ $this->customer_id = '';
+ $this->document_date = new_doc_date();
+ if (!is_date_in_fiscalyear($this->document_date))
+ $this->document_date = end_fiscalyear();
+ $this->reference = $Refs->get_next($this->trans_type, null, array('date' => Today(),
+ 'customer' => $this->customer_id));
+ if ($type != ST_SALESORDER && $type != ST_SALESQUOTE) // Added 2.1 Joe Hunt 2008-11-12
+ {
+ $dim = get_company_pref('use_dimension');
+ if ($dim > 0)
+ {
+ if ($this->customer_id == '')
+ $this->dimension_id = 0;
+ else
+ {
+ $cust = get_customer($this->customer_id);
+ $this->dimension_id = $cust['dimension_id'];
+ }
+ if ($dim > 1)
+ {
+ if ($this->customer_id == '')
+ $this->dimension2_id = 0;
+ else
+ $this->dimension2_id = $cust['dimension2_id'];
+ }
+ }
+ }
+ if ($type == ST_SALESINVOICE) {
+ $this->due_date =
+ get_invoice_duedate($this->payment, $this->document_date);
+ } else
+ $this->due_date =
+ add_days($this->document_date, $SysPrefs->default_delivery_required_by());
+ }
+ $this->credit = get_current_cust_credit($this->customer_id);
+ }
+
+ //-------------------------------------------------------------------------
+ // Writing new/modified sales document to database.
+ // Makes parent documents for direct delivery/invoice by recurent call.
+ // $policy - 0 or 1: writeoff/return for IV, back order/cancel for DN
+ function write($policy=0) {
+
+ begin_transaction(); // prevents partial database changes in case of direct delivery/invoice
+ if ($this->reference != 'auto' && $this->trans_no == 0 && !is_new_reference($this->reference, $this->trans_type))