private function insertDashboardSequence()
{
$db = $this->getDB();
// build groupsetting
$groupSetting['group_id'] = 1;
$groupSetting['name'] = 'dashboard_sequence';
$groupSetting['value'] = serialize(array());
// build usersetting
$userSetting['user_id'] = 1;
$userSetting['name'] = 'dashboard_sequence';
$userSetting['value'] = serialize(array());
// insert settings
$db->insert('groups_settings', $groupSetting);
$db->insert('users_settings', $userSetting);
// insert default dashboard widget
$this->insertDashboardWidget('Settings', 'Analyse');
// insert default dashboard widget
$this->insertDashboardWidget('Users', 'Statistics');
}