- if ($row['auto_update']) {
- $rate = retrieve_exrate($currency, $date_);
- if ($rate)
- add_exchange_rate($currency, $date_, $rate, $rate);
+
+ if ($row['auto_update']) // autoupdate means use remote service & store exrate on first transaction.
+ {
+ $rate = retrieve_exrate($currency, $date_);
+ if (!$rate)
+ display_warning(sprintf(_("Cannot retrieve exchange rate for currency %s. Please adjust approximate rate if needed."), $currency));
+ elseif ($xr_provider_authoritative) {
+ // if the remote exrate is considered authoritative we can store the rate here,
+ // otherwise exrate will be stored during transaction write
+ $readonly = true;
+ add_new_exchange_rate($currency, $date_, $rate);
+ }