/**
* Return users last visit
*
* @param void
* @return DateTimeValue
*/
function getLastVisitOn()
{
if ($this->last_visit_on === false) {
$last_visit = parent::getLastVisitOn();
$this->last_visit_on = instance_of($last_visit, 'DateTimeValue') ? $last_visit : new DateTimeValue(filectime(ENVIRONMENT_PATH . '/config/config.php'));
}
// if
return $this->last_visit_on;
}