+ return false;
+}
+
+//------------- New helper functions for revaluation of customer/supplier currencies 2011-05-08 Joe Hunt.
+function add_cust_supp_revaluation($ledger_act, $ex_act, $date, $amount, $person_type_id, $person_id, $memo)
+{
+ global $Refs;
+ if ($amount == 0)
+ return;
+
+ begin_transaction();
+ $trans_no = get_next_trans_no(ST_JOURNAL);
+ $ref = $Refs->get_next(ST_JOURNAL);
+
+ add_journal(ST_JOURNAL, $trans_no, $amount, $date, $currency, $ref, '', $rate, $date, $date);
+ $Refs->save(ST_JOURNAL, $trans_no, $ref);
+ add_audit_trail(ST_JOURNAL, $trans_no, $date);
+
+ add_gl_trans(ST_JOURNAL, $trans_no, $date, $ledger_act, 0, 0, _("Exchange Variance"),
+ $amount, null, $person_type_id, $person_id);
+ add_gl_trans(ST_JOURNAL, $trans_no, $date, $ex_act, 0, 0,
+ _("Exchange Variance"), -$amount, null, $person_type_id, $person_id);
+ add_comments(ST_JOURNAL, $trans_no, $date, $memo);
+ commit_transaction();
+}
+
+function get_cust_account_curr_balances($date)
+{
+ $to = date2sql($date);
+
+ $sql = "SELECT SUM(IF(t.type =".ST_CUSTCREDIT." OR t.type = ".ST_CUSTPAYMENT." OR t.type = ".ST_BANKDEPOSIT." OR t.type = ".ST_JOURNAL.",
+ -(t.ov_amount + t.ov_gst + t.ov_freight + t.ov_freight_tax + t.ov_discount),
+ (t.ov_amount + t.ov_gst + t.ov_freight + t.ov_freight_tax + t.ov_discount))) AS amount,
+ dt.debtor_no, dt.name, dt.curr_code, b.receivables_account
+ FROM ".TB_PREF."debtor_trans t
+ LEFT JOIN ".TB_PREF."debtors_master dt ON t.debtor_no = dt.debtor_no
+ LEFT JOIN ".TB_PREF."cust_branch b ON t.debtor_no = b.debtor_no
+ LEFT JOIN ".TB_PREF."voided as v ON v.type = t.type and v.id=t.trans_no
+ WHERE ISNULL(v.date_) AND t.type <> ".ST_CUSTDELIVERY." AND t.tran_date <= '$to'
+ AND t.branch_code=b.branch_code AND dt.curr_code<>'".get_company_pref('curr_default')."'
+ GROUP BY t.debtor_no, b.receivables_account";
+
+ $result = db_query($sql,"Open balances in foreign currency for cannot be retrieved");
+ return $result;
+}
+
+function get_supp_account_curr_balances($date)
+{
+ $to = date2sql($date);
+
+ $sql = "SELECT SUM(-(t.ov_amount + t.ov_gst + t.ov_discount)) AS amount,
+ supp.supplier_id, supp.supp_name, supp.curr_code, supp.payable_account
+ FROM ".TB_PREF."supp_trans t
+ LEFT JOIN ".TB_PREF."suppliers supp ON t.supplier_id = supp.supplier_id
+ LEFT JOIN ".TB_PREF."voided as v ON v.type = t.type and v.id=t.trans_no
+ WHERE ISNULL(v.date_) AND t.tran_date <= '$to'
+ AND supp.curr_code<>'".get_company_pref('curr_default')."'
+ GROUP BY t.supplier_id";
+
+ $result = db_query($sql,"Open balances in foreign currency for cannot be retrieved");
+ return $result;
+}
+
+function get_account_home_balance($person_id, $person_type, $rec_account, $to_date)
+{
+ $to = date2sql($to_date);
+
+ $sql = "SELECT SUM(amount) FROM ".TB_PREF."gl_trans
+ WHERE person_id=".db_escape($person_id)." AND account='$rec_account'
+ AND person_type_id=$person_type AND tran_date <= '$to'";
+ $result = db_query($sql, "The AR/AP balance for customer $person_id could not be calculated");
+ $row = db_fetch_row($result);
+ return $row[0];