/**
* Performs a redirection to the specified URL with storage of state
* information in the session.
*
* @see Redirector::redirect()
*
* @param string $url Where to redirect to.
* @param mixed $extra_data Extra data to preserve across redirect.
*
* @throws RedirectorException
*/
public static function redirectWithState($url = null, $extra_data = null)
{
$url = URL::ize($url);
# Store redirect information in the session
$item_key = self::generateKey();
$_SESSION[self::DATA_KEY][$item_key] = array('source' => isset($_SERVER['REQUEST_URI']) ? $_SERVER['REQUEST_URI'] : null, 'target' => $url->absolute(), 'time' => microtime(true), 'post_data' => $_POST, 'extra_data' => $extra_data);
# Append item key to query string
$url = new URL($url);
$url->appendToQueryString(self::ITEM_KEY, $item_key);
# Perform redirect
self::redirect($url);
}
/**
* Render the form.
*
* @param string $action URL to submit to, defaults to self.
* @param string $method HTTP method to use: POST or GET.
*
* @return string
*/
public function render($action = null, $method = null)
{
$out = '';
if ($this->generateFormTags) {
$props = $this->formProperties;
if (!is_null($action)) {
$props['action'] = $action;
} elseif (!isset($props['action'])) {
$props['action'] = URL::getCurrent();
}
if (!is_null($method)) {
$props['method'] = strtolower($method);
} elseif (!isset($props['method'])) {
$props['method'] = 'post';
}
$out .= '<form';
foreach ($props as $k => $v) {
$out .= ' ' . $k . '="' . String::escape($v, true) . '"';
}
$out .= ">\n";
}
// render elements
$out .= $this->renderElementList($this->fields);
if ($this->generateFormTags) {
$out .= "</form>\n";
}
return $out;
}