/**
* Public function that creates a single instance
*/
public static function getInstance()
{
if (!isset(self::$_instance)) {
self::$_instance = new self();
}
return self::$_instance;
}
/**
* Return JSON object containing statistics for currently logged in user.
*/
private function json_getStatistics()
{
$result = array();
$manager = SapphireWavesManager::getInstance();
$stats_manager = SapphireWavesStatisticsManager::getInstance();
if ($_SESSION['logged']) {
$user = $manager->getSingleItem($manager->getFieldNames(), array('user' => $_SESSION['uid']));
if (is_object($user)) {
$statistics = $stats_manager->getItems($stats_manager->getFieldNames(), array('user' => $user->id), array('timestamp'));
if (count($statistics) > 0) {
foreach ($statistics as $statistic) {
$result[] = array($statistic->usage, $statistic->timestamp);
}
}
}
}
print json_encode($result);
}