.
***********************************************************************/
//---------------------------------------------------------------------------------------------
function get_exchange_rate($rate_id)
{
$sql = "SELECT * FROM ".TB_PREF."exchange_rates WHERE id=$rate_id";
$result = db_query($sql, "could not get exchange rate for $rate_id");
return db_fetch($result);
}
// Retrieves buy exchange rate for given currency/date, zero if no result
function get_date_exchange_rate($curr_code, $date_)
{
$date = date2sql($date_);
$sql = "SELECT rate_buy FROM ".TB_PREF."exchange_rates WHERE curr_code='$curr_code'
AND date_='$date'";
$result = db_query($sql, "could not get exchange rate for $curr_code - $date_");
if(db_num_rows($result) == 0)
return 0;
$row = db_fetch($result);
return $row[0];
}
//---------------------------------------------------------------------------------------------
function update_exchange_rate($curr_code, $date_, $buy_rate, $sell_rate)
{
if (is_company_currency($curr_code))
display_db_error("Exchange rates cannot be set for company currency", "", true);
$date = date2sql($date_);
$sql = "UPDATE ".TB_PREF."exchange_rates SET rate_buy=$buy_rate, rate_sell=$sell_rate
WHERE curr_code='$curr_code' AND date_='$date'";
db_query($sql, "could not add exchange rate for $curr_code");
}
//---------------------------------------------------------------------------------------------
function add_exchange_rate($curr_code, $date_, $buy_rate, $sell_rate)
{
if (is_company_currency($curr_code))
display_db_error("Exchange rates cannot be set for company currency", "", true);
$date = date2sql($date_);
$sql = "INSERT INTO ".TB_PREF."exchange_rates (curr_code, date_, rate_buy, rate_sell)
VALUES ('$curr_code', '$date', $buy_rate, $sell_rate)";
db_query($sql, "could not add exchange rate for $curr_code");
}
//---------------------------------------------------------------------------------------------
function delete_exchange_rate($rate_id)
{
$sql = "DELETE FROM ".TB_PREF."exchange_rates WHERE id=$rate_id";
db_query($sql, "could not delete exchange rate $rate_id");
}
//---------------------------------------------------------------------------------------------
function get_ecb_rate($curr_b)
{
$curr_a = get_company_pref('curr_default');
$ecb_filename = 'http://www.ecb.int/stats/eurofxref/eurofxref-daily.xml';
$contents = '';
if (function_exists('curl_init'))
{ // first check with curl as we can set short timeout;
$ch = curl_init();
curl_setopt ($ch, CURLOPT_URL, $ecb_filename);
curl_setopt ($ch, CURLOPT_COOKIEJAR, "cookie.txt");
curl_setopt ($ch, CURLOPT_HEADER, 0);
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt ($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt ($ch, CURLOPT_TIMEOUT, 5);
$contents = curl_exec ($ch);
curl_close($ch);
} else {
$handle = @fopen($ecb_filename, 'rb');
if ($handle) {
do
{
$data = @fread( $handle, 4096 );
if ( strlen ( $data ) == 0 )
break;
$contents .= $data; // with this syntax only text will be translated, whole text with htmlspecialchars($data)
}
while (true);
@fclose( $handle );
} // end handle
}
if (!$contents) {
display_warning(_('Cannot retrieve currency rate from ECB page. Please set the rate manually.'));
}
$contents = str_replace (" |i";
preg_match ( $from_mask, $contents, $out );
$val_a = isset($out[1]) ? $out[1] : 0;
$val_a = str_replace ( ',', '', $val_a );
$to_mask = "||i";
preg_match ( $to_mask, $contents, $out );
$val_b = isset($out[1]) ? $out[1] : 0;
$val_b = str_replace ( ',', '', $val_b );
if ($val_b)
{
$val = $val_a / $val_b;
}
else
{
$val = 0;
}
return $val;
} // end function get_ecb_rate
?>