private function save()
{
$this->config->set_items_per_page($this->form->get_value('items_per_page'));
$forbidden_tags = array();
foreach ($this->form->get_value('forbidden_tags') as $field => $option) {
$forbidden_tags[] = $option->get_raw_value();
}
$this->config->set_forbidden_tags($forbidden_tags);
if ($this->form->get_value('max_links_number_per_message_enabled')) {
$this->config->enable_max_links_number_per_message();
$this->config->set_maximum_links_message($this->form->get_value('max_links_number_per_message'));
} else {
$this->config->disable_max_links_number_per_message();
}
$this->config->set_authorizations($this->form->get_value('authorizations')->build_auth_array());
GuestbookConfig::save();
GuestbookMessagesCache::invalidate();
}