widgetName = JText::translate('VBO_W_CURRCONV_TITLE');
$this->widgetDescr = JText::translate('VBO_W_CURRCONV_DESCR');
$this->widgetId = basename(__FILE__, '.php');
// define widget and icon and style name
$this->widgetIcon = '';
$this->widgetStyleName = 'violet';
// load widget's settings
$this->widgetSettings = $this->loadSettings();
if (!is_object($this->widgetSettings)) {
$this->widgetSettings = new stdClass;
}
}
/**
* Custom method for this widget only to exchange the rates between currencies.
* The method is called by the admin controller through an AJAX request.
* The visibility should be public, it should not exit the process, and
* any content sent to output will be returned to the AJAX response.
* In this case we return an array because this method requires "return":1.
*
* It's the actual rendering of the widget.
*/
public function exchangeRates()
{
$wrapper = VikRequest::getString('wrapper', '', 'request');
$from_currency = VikRequest::getString('from_currency', '', 'request');
$to_currency = VikRequest::getString('to_currency', '', 'request');
$amount = VikRequest::getFloat('amount', 1, 'request');
if (empty($from_currency) || empty($to_currency)) {
// use the website default currency
$from_currency = VikBooking::getCurrencyName();
// use the default to currency
$to_currency = !strcasecmp($from_currency, 'EUR') ? 'USD' : 'EUR';
}
if ($amount <= 0) {
$amount = 1;
}
// import currency converter class
VikBooking::import('currencyconverter');
// get numbering format data
$format = VikBooking::getNumberFormatData();
// get the instance of the converter object
$converter = new VboCurrencyConverter($from_currency, $to_currency, [$amount], explode(':', $format));
// collect values
$converter_error = null;
$exchanged = null;
$exchange_rate = null;
// make sure from currency is supported for conversion
if (!$converter->currencyExists($from_currency)) {
$converter_error = sprintf('Currency %s is not supported', $from_currency);
} elseif (!$converter->currencyExists($to_currency)) {
$converter_error = sprintf('Currency %s is not supported', $to_currency);
}
if (!$converter_error) {
// exchange the given rates
$exchanged = $converter->convert($get_floats = true);
}
if (!$converter_error && (!is_array($exchanged) || !count($exchanged))) {
// something went wrong during the conversion
$converter_error = $converter->getError();
$converter_error = empty($converter_error) ? 'Error while converting rates' : $converter_error;
} else {
// get the conversion rate
$exchange_rate = $converter->getConversionRate();
// update widget's settings with the lastly used currencies
$this->widgetSettings->from_currency = $from_currency;
$this->widgetSettings->to_currency = $to_currency;
$this->updateSettings(json_encode($this->widgetSettings));
}
// start output buffering
ob_start();
?>
$html_content,
'exchanged' => $exchanged,
'exchange_rate' => $exchange_rate,
];
}
/**
* Preload the necessary CSS/JS assets.
*
* @return void
*/
public function preload()
{
// load assets
$this->vbo_app->loadSelect2();
}
public function render(VBOMultitaskData $data = null)
{
// increase widget's instance counter
static::$instance_counter++;
// check whether the widget is being rendered via AJAX when adding it through the customizer
$is_ajax = $this->isAjaxRendering();
// generate a unique ID for the sticky notes wrapper instance
$wrapper_instance = !$is_ajax ? static::$instance_counter : rand();
$wrapper_id = 'vbo-widget-currconv-' . $wrapper_instance;
// import currency converter class
if (!VikBooking::import('currencyconverter')) {
// display nothing
return;
}
// the website default currency
$def_currency = !empty($this->widgetSettings->from_currency) ? $this->widgetSettings->from_currency : VikBooking::getCurrencyName();
// the default to currency
$def_to_currency = !strcasecmp($def_currency, 'EUR') ? 'USD' : 'EUR';
if (!empty($this->widgetSettings->to_currency)) {
$def_to_currency = $this->widgetSettings->to_currency;
}
// get numbering format data
$format = VikBooking::getNumberFormatData();
// get the instance of the converter object
$converter = new VboCurrencyConverter($def_currency, $def_to_currency, [1], explode(':', $format));
// grab all currency names
$all_currencies = $converter->getCurrencyNames();
?>