public function logActivity($event)
    {
        // if cronjob / no user
        if (user()->id <= 0) {
            return;
        }

        // log adjustment
        LogAdminActivity::create([
            'subject_id'   => $this->id,
            'subject_type' => get_class($this),
            'name'         => $this->getActivityName($this, $event),
            'before'       => $this->before,
            'after'        => $this->after,
            'user_id'      => user()->id,
        ]);
    }