protected function prepare()
{
$this->assign('wa_url', $this->system->getRootUrl());
$this->assign('wa_backend_url', waSystem::getInstance()->getConfig()->getBackendUrl(true));
$this->assign('wa_app', $this->system->getApp());
$this->assign('wa_app_url', $this->system->getAppUrl(null, true));
$this->assign('wa_app_static_url', $this->system->getAppStaticUrl());
if (!$this->helper) {
$this->helper = new waViewHelper($this);
}
$this->assign('wa', $this->helper);
}