Method __construct

public function __construct()
{
    $session = Factory::getSession();
    $this->user = PhocacartUser::getUser();
    $app = Factory::getApplication();
    $db = Factory::getDbo();
    if ((int) $this->user->id > 0) {
        // DATABASE - logged in user - Singleton because of not load data from database every time wishlist instance is loaded
        // 1. Not found in DATABASE - maybe user logged in now, so:
        // 2. We try to find the data in SESSION, if they are still in SESSION - load them to our wishlist class and then
        // 3. Store them to DATABASE as all loged in users have wishlist in database and:
        // 4. Remove them from SESSION as they are stored in DATABASE
        $wLDb = $this->getWishListItemdDb();
        // user logged in - try to get wishlist from db
        $this->items = $wLDb;
        // Recheck if we have access to all products:
        $query = $this->getQueryList($this->items);
        if ($query) {
            //echo nl2br(str_replace('#__', 'jos_', $query));
            $db->setQuery($query);
            $this->itemsDb = $db->loadObjectList();
            $tempItems = array();
            if (!empty($this->itemsDb)) {
                foreach ($this->itemsDb as $k => $v) {
                    $id = (int) $v->id;
                    if (isset($this->items[$id])) {
                        $tempItems[$id] = $this->items[$id];
                    }
                }
            }
            $this->items = $tempItems;
        }
        if (empty($this->items)) {
            $this->items = $session->get('wishlist', array(), 'phocaCart');
            if (!empty($this->items)) {
                $this->updateWishListItems();
                $session->set('wishlist', array(), 'phocaCart');
            }
        }
    } else {
        $this->items = $session->get('wishlist', array(), 'phocaCart');
    }
}