new action to hookActionCartSave

[massimopasquali]

Hello,

 

I have crete a button in the template Shopping-cart-tpl "RESET CART" for empting the cart.

 

I read a lot of article, how used to create a module and how used to create an hook.

 

in particolar I found this example, but I didn't find an explain how to run an Hook from an action button :
 

class OneProductCart extends Module {    public function __construct() {        $this->name = 'oneproductcart';        $this->tab = 'front_office_features';        $this->version = '1.0';        $this->author = 'SJousse';        $this->need_instance = 0;        parent::__construct();        $this->displayName = $this->l('One Product Cart');        $this->description = $this->l('Keep only last product in cart.');    }    public function install() {        return (parent::install() && $this->registerHook('actionCartSave'));    }    public function hookActionCartSave($params) {        $cart = $params['cart'];        $last = $cart->getLastProduct();        $prods = $cart->getProducts();        foreach ($prods as $prod)            if ($prod['id_product'] != $last['id_product'])                $cart->deleteProduct($prod['id_product']);    [spam-filter]

can you tell me a link where I can undestood the Hook? Futhermore, could you tell me how you think to solve the problem

 

thanks in advance

Edited July 24, 2017 by massimopasquali (see edit history)