protected function parse()
{
parent::parse();
// parse data grid
$this->tpl->assign('dataGridInstallableModules', (string) $this->dataGridInstallableModules->getContent());
$this->tpl->assign('dataGridInstalledModules', (string) $this->dataGridInstalledModules->getContent());
// parse installer warnings
$this->tpl->assign('warnings', (array) \SpoonSession::get('installer_warnings'));
}