+function get_supp_inv_reference($supplier_id, $stock_id, $date)
+{
+ $sql = "SELECT ".TB_PREF."supp_trans.supp_reference
+ FROM ".TB_PREF."supp_trans,
+ ".TB_PREF."supp_invoice_items,
+ ".TB_PREF."grn_batch,
+ ".TB_PREF."grn_items
+ WHERE ".TB_PREF."supp_trans.type=".TB_PREF."supp_invoice_items.supp_trans_type
+ AND ".TB_PREF."supp_trans.trans_no=".TB_PREF."supp_invoice_items.supp_trans_no
+ AND ".TB_PREF."grn_items.grn_batch_id=".TB_PREF."grn_batch.id
+ AND ".TB_PREF."grn_items.item_code=".TB_PREF."supp_invoice_items.stock_id
+ AND ".TB_PREF."supp_trans.supplier_id=".db_escape($supplier_id)."
+ AND ".TB_PREF."supp_invoice_items.stock_id=".db_escape($stock_id)."
+ AND ".TB_PREF."supp_trans.tran_date=".db_escape($date);
+ $result = db_query($sql,"No transactions were returned");
+ $row = db_fetch_row($result);
+ if (isset($row[0]))
+ return $row[0];
+ else
+ return '';
+}
+
+