/**
* Initialize alerts alerts.
*
* Initialize alerts alerts by copying redirected alerts from
* session to the local <var>$alerts</var> array.
*/
public static function init()
{
// setup alerts
self::$alerts[self::TYPE_ERROR] = array();
self::$alerts[self::TYPE_NOTICE] = array();
if (Pfw_Session::isStarted()) {
// setup session alerts
$session_alerts = Pfw_Session::get(self::SESSION_KEY);
if (isset($session_alerts)) {
if (isset($session_alerts[self::TYPE_ERROR])) {
self::$alerts[self::TYPE_ERROR] = $session_alerts[self::TYPE_ERROR];
}
if (isset($session_alerts[self::TYPE_NOTICE])) {
self::$alerts[self::TYPE_NOTICE] = $session_alerts[self::TYPE_NOTICE];
}
Pfw_Session::clear(self::SESSION_KEY);
}
} else {
error_log("Pfw_Session is not initialized prior to Pfw_Alert, " . "alerts / notices which follow redirects " . "may exhibit unexpected behavior", E_USER_WARNING);
}
self::$initialized = true;
}
