/**
* Sets the currency to be used in this order.
* Changing this does not affect any of the prices used in the order
* @param string $currency_code Currency code used to identify the
* currency. Must be registered with APP_Currencies
* @return boolean True if currency was changed, false on error
*/
public function set_currency($currency_code)
{
if (!is_string($currency_code)) {
trigger_error('Currency code must be string', E_USER_WARNING);
}
if (APP_Currencies::is_valid($currency_code)) {
$this->payment['currency'] = $currency_code;
} else {
return false;
}
$this->update_meta('currency', $this->payment['currency']);
return true;
}
/**
* Verify that is_valid works correctly
*/
public function test_is_valid()
{
$this->assertTrue(APP_Currencies::is_valid('USD'));
$this->assertFalse(APP_Currencies::is_valid('not-a-currency'));
}
