0); } //---------------------------------------------------------------------------------- function is_company_currency($currency) { return (get_company_currency() == $currency); } //---------------------------------------------------------------------------------- function get_company_currency() { $sql= "SELECT curr_default FROM ".TB_PREF."company"; $result = db_query($sql, "retreive company currency"); if (db_num_rows($result) == 0) display_db_error("Could not find the requested currency. Fatal.", $sql); $myrow = db_fetch_row($result); return $myrow[0]; } //---------------------------------------------------------------------------------- function get_bank_account_currency($bankAccount) { $sql= "SELECT bank_curr_code FROM ".TB_PREF."bank_accounts WHERE account_code='$bankAccount'"; $result = db_query($sql, "retreive bank account currency"); $myrow = db_fetch_row($result); return $myrow[0]; } //---------------------------------------------------------------------------------- function get_customer_currency($customer_id) { $sql = "SELECT curr_code FROM ".TB_PREF."debtors_master WHERE debtor_no = '$customer_id'"; $result = db_query($sql, "Retreive currency of customer $customer_id"); $myrow=db_fetch_row($result); return $myrow[0]; } //---------------------------------------------------------------------------------- function get_supplier_currency($supplier_id) { $sql = "SELECT curr_code FROM ".TB_PREF."suppliers WHERE supplier_id = '$supplier_id'"; $result = db_query($sql, "Retreive currency of supplier $supplier_id"); $myrow=db_fetch_row($result); return $myrow[0]; } //---------------------------------------------------------------------------------- function get_exchange_rate_from_home_currency($currency_code, $date_) { if ($currency_code == get_company_currency()) return 1.0000; $date = date2sql($date_); $sql = "SELECT rate_buy, max(date_) as date_ FROM ".TB_PREF."exchange_rates WHERE curr_code = '$currency_code' AND date_ <= '$date' GROUP BY rate_buy ORDER BY date_ Desc LIMIT 1"; $result = db_query($sql, "could not query exchange rates"); if (db_num_rows($result) == 0) { // no stored exchange rate, just return 1 display_error(_("Cannot retrieve currency exchange rate for this date. Please add exchange rate manually on Exchange Rates page.") ); return 1.000; } $myrow = db_fetch_row($result); return $myrow[0]; } //---------------------------------------------------------------------------------- function get_exchange_rate_to_home_currency($currency_code, $date_) { return 1 / get_exchange_rate_from_home_currency($currency_code, $date_); } //---------------------------------------------------------------------------------- function to_home_currency($amount, $currency_code, $date_) { $ex_rate = get_exchange_rate_to_home_currency($currency_code, $date_); return round($amount / $ex_rate, user_price_dec()); } //---------------------------------------------------------------------------------- function get_exchange_rate_from_to($from_curr_code, $to_curr_code, $date_) { // echo "converting from $from_curr_code to $to_curr_code
"; if ($from_curr_code == $to_curr_code) return 1.0000; $home_currency = get_company_currency(); if ($to_curr_code == $home_currency) { return get_exchange_rate_to_home_currency($from_curr_code, $date_); } if ($from_curr_code == $home_currency) { return get_exchange_rate_from_home_currency($to_curr_code, $date_); } // neither from or to are the home currency return get_exchange_rate_to_home_currency($from_curr_code, $date_) / get_exchange_rate_to_home_currency($to_curr_code, $date_); } //-------------------------------------------------------------------------------- function exchange_from_to($amount, $from_curr_code, $to_curr_code, $date_) { $ex_rate = get_exchange_rate_from_to($from_curr_code, $to_curr_code, $date_); return $amount / $ex_rate; } //-------------------------------------------------------------------------------- // Exchange Variations Joe Hunt 2008-09-20 //////////////////////////////////////// function exchange_variation($pyt_type, $pyt_no, $type, $trans_no, $pyt_date, $amount, $person_type, $neg=false) { if ($person_type == payment_person_types::customer()) { $trans = get_customer_trans($trans_no, $type); $ar_ap_act = $trans['receivables_account']; $person_id = $trans['debtor_no']; $curr = $trans['curr_code']; } else { $trans = get_supp_trans($trans_no, $type); $supp_accs = get_supplier_accounts($trans['supplier_id']); $ar_ap_act = $supp_accs['payable_account']; $person_id = $trans['supplier_id']; $curr = $trans['SupplierCurrCode']; } if (is_company_currency($curr)) return; $exc_var_act = get_company_pref('exchange_diff_act'); $inv_amt = to_home_currency($amount, $curr, sql2date($trans['tran_date'])); $pay_amt = to_home_currency($amount, $curr, $pyt_date); if ($inv_amt != $pay_amt) { $diff = $inv_amt - $pay_amt; if ($person_type == payment_person_types::supplier()) $diff = -$diff; if ($neg) $diff = -$diff; $memo = systypes::name($type)." ".$trans_no; add_gl_trans($pyt_type, $pyt_no, $pyt_date, $ar_ap_act, 0, 0, $memo, -$diff, null, $person_type, $person_id); add_gl_trans($pyt_type, $pyt_no, $pyt_date, $exc_var_act, 0, 0, $memo, $diff, null, $person_type, $person_id); } } ?>