/**
* Returns an instance of class (singleton pattern implementation).
*
* @return BOL_SiteStatisticService
*/
public static function getInstance()
{
if (self::$classInstance === null) {
self::$classInstance = new self();
}
return self::$classInstance;
}
/**
* On before render
*
* @return void
*/
public function onBeforeRender()
{
$service = BOL_SiteStatisticService::getInstance();
// get statistics
$entities = $service->getStatistics($this->entityTypes, $this->period);
// translate and process the data entities
$data = array();
$total = array();
$index = 0;
foreach ($entities as $entity => $values) {
$list = array_values($values);
$data[] = array_merge(array('label' => $this->entityLabels[$entity], 'data' => $list), $this->getChartColor($index));
$total[] = array('label' => $this->entityLabels[$entity], 'count' => array_sum($list));
$index++;
}
// assign view variables
$this->assign('chartId', $this->chartId);
$this->assign('categories', json_encode($this->entityCategories()));
$this->assign('data', json_encode($data, JSON_NUMERIC_CHECK));
$this->assign('total', $total);
// include js and css files
OW::getDocument()->addScript(OW::getPluginManager()->getPlugin('base')->getStaticJsUrl() . 'chart.js');
}
public function onUserLoginSaveStatistics(OW_Event $event)
{
$params = $event->getParams();
BOL_SiteStatisticService::getInstance()->addEntity('user_login', $params['userId']);
}
