+ begin_transaction();
+ $trans_no = get_next_trans_no(ST_JOURNAL);
+ $ref = $Refs->get_next(ST_JOURNAL);
+
+ add_journal(ST_JOURNAL, $trans_no, $amount, $date, get_company_currency(), $ref, '', 1, $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);
+
+ $sql = "SELECT SUM(IF(t.type IN(". implode(',', array(ST_CUSTCREDIT, ST_CUSTPAYMENT, ST_BANKDEPOSIT, ST_JOURNAL))."),
+ -(t.ov_amount + t.ov_gst + t.ov_freight + t.ov_freight_tax + t.ov_discount),
+ (t.ov_amount + t.ov_gst + t.ov_freight + t.ov_freight_tax + t.ov_discount))) AS amount,
+ dt.debtor_no, dt.name, dt.curr_code, b.receivables_account
+ FROM ".TB_PREF."debtor_trans t
+ LEFT JOIN ".TB_PREF."debtors_master dt ON t.debtor_no = dt.debtor_no
+ LEFT JOIN ".TB_PREF."cust_branch b ON t.debtor_no = b.debtor_no
+ LEFT JOIN ".TB_PREF."voided as v ON v.type = t.type and v.id=t.trans_no
+ WHERE ISNULL(v.date_) AND t.type <> ".ST_CUSTDELIVERY." AND t.tran_date <= '$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 $row[0];
+}
+//------------- New helper functions for revaluation of customer/supplier currencies 2011-05-08 Joe Hunt.
+
+function add_exchange_variation_all($date=null, $ref="", $memo)
+{
+ global $Refs;
+ begin_transaction();
+ $exchanged = false;
+ $trans_no = get_next_trans_no(ST_JOURNAL);
+ $sql = "SELECT * FROM ".TB_PREF."bank_accounts";
+ $result = db_query($sql, "could not retreive bank accounts");
+ while ($myrow = db_fetch($result))
+ {
+ if (add_exchange_variation($trans_no, $date, $myrow['id'], $myrow['account_code'],
+ $myrow['bank_curr_code']))
+ $exchanged = true;
+ }
+ if ($exchanged)
+ {
+ add_comments(ST_JOURNAL, $trans_no, $date, $memo);
+ if ($ref == "")
+ $ref = $Refs->get_next(ST_JOURNAL, null, $date);
+ $Refs->save(ST_JOURNAL, $trans_no, $ref);
+ add_audit_trail(ST_JOURNAL, $trans_no, $date);
+ }
+
+ //------------- BEGIN inserted for revaluation of customer/supplier currencies 2011-05-08 Joe Hunt.
+ if ($date == null)
+ $date = Today();
+ $exchange_act = get_company_pref('exchange_diff_act');
+ $je = 0;
+ // debtors
+ $res = get_cust_account_curr_balances($date);
+
+ while($row = db_fetch($res))
+ {
+ $exrate = get_exchange_rate_from_home_currency($row['curr_code'], $date);
+ $foreign = round2($row['amount']*$exrate, user_price_dec());
+ $home = round2(get_account_home_balance($row['debtor_no'], PT_CUSTOMER, $row['receivables_account'], $date), user_price_dec());
+ if ($foreign != $home)
+ {
+ $amount = $foreign - $home;
+ add_cust_supp_revaluation($row['receivables_account'], $exchange_act, $date, $amount, PT_CUSTOMER,
+ $row['debtor_no'], $memo);
+ $je++;
+ }
+ }
+ // creditors
+ $res = get_supp_account_curr_balances($date);
+
+ while($row = db_fetch($res))
+ {
+ $exrate = get_exchange_rate_from_home_currency($row['curr_code'], $date);
+ $foreign = round2($row['amount']*$exrate, user_price_dec());
+ $home = round2(get_account_home_balance($row['supplier_id'], PT_SUPPLIER, $row['payable_account'], $date), user_price_dec());
+ if ($foreign != $home)
+ {
+ $amount = $foreign - $home;
+ add_cust_supp_revaluation($row['payable_account'], $exchange_act, $date, $amount, PT_SUPPLIER,
+ $row['supplier_id'], $memo);
+ $je++;
+ }
+ }
+ //------------- END
+
+ commit_transaction();
+ return array(($exchanged ? $trans_no : 0), $je);
+}