/**
* Fetch activity for preview
* @param int $id
* @return array
*/
protected function fetchActivity($id)
{
if (is_null($this->FetchStatement)) {
$this->FetchStatement = DB::getInstance()->prepare('SELECT
' . implode(',', Preview::keys()) . '
FROM `' . PREFIX . 'training`
WHERE `id`=:id
LIMIT 1');
}
$this->FetchStatement->execute(array(':id' => $id));
return $this->FetchStatement->fetch();
}