Vertical Menu

[ruisonika]

Hello guys,

I need help please.
I'm running 1.6 prestashop.
This is my shop: https://nnn.acidados.net/index.php
I'm trying in the vertical "dropdown" menu (item-menu called "Família Teste") to do this:
When in this menu (hover situation) in the panel on the right you could see the categories (first and second level) in the second level there is 2 categories hidden (active = 0), so when does happen i want to show a button see all, the links to another page and where all categories from that parent are show.

The code i have been working is this.

 

$sql = 'SELECT COUNT(*) FROM '._DB_PREFIX_.'ptsverticalmenu WHERE active = 0 ORDER BY id_parent';

                    $totalMenuHide = Db::getInstance()->getValue($sql);

                    

                    if ($totalMenuHide > 0){

                        $row .= '<span class="btn_seeall">ver todas</span>';

                    }

My problem is how can i refere to $this, i need to use $this but i don't know where.
Help please.
Thanks in advance.