Problem in assigning dynamically created cart rule to the cart after clicking add to cart button

[pooja.gadkari]

Hi

 

I am using prestashop 1.5.6.0. When user clicks on add to cart button, I am creating cart rule and assigning it to cart, if I click on "Cart" link at the top right, I am getting Fatal error: Call to a member function getProducts() on a non-object in /classes/CartRule.php on line 565 for the first time when cart is empty. But if cart is not empty then I am not getting error.

 

For creating cat rule I had taken help from below link

http://www.prestashop.com/forums/topic/282032-solved-problem-in-creating-cart-rule-dynamically/

 

For assigning cart rule to shopping cart, i had used below code:

public function hookActionCartSave($params){

    $code = $this->context->cookie->__get('token');

                

                if (($cartRule = new CartRule(CartRule::getIdByCode($code))) && Validate::isLoadedObject($cartRule)) {

                    if ($error = $cartRule->checkValidity($this->context, false, true)) {

                        $this->errors[] = $error;

                    } else {

                        $this->context->cart->addCartRule($cartRule->id);

                   }

                }

}

 

Can anyone help in fixing this issue

 

Thanks

[vekia]

so, after "add to cart" you see some error messages? ($this->errors[] = $error;) ?

[pooja.gadkari]

no. When I click on cart link present at the top right I am getting Fatal error: Call to a member function getProducts() on a non-object in classes/CartRule.php on line 565

 

I also tried to check the products in cart using below code in hookActionCartSave:

$cart = $params['cart'];

$prods = $cart->getProducts();

print("<pre>");print_r($cart);

 

But when cart is empty there are no products in [products:protected] section and when I click on cart link, I am getting error on this statement "$prods = $cart->getProducts();"

 

But if cart is not empty then I can see the product list in [products:protected]. And also I am not getting above error.

 

Can you tell when does the code inside hookActionCartSave gets executed after the product is added in cart or before that.

I guess the code is getting executed before adding the product to cart and so this is happening. 

Edited January 31, 2014 by pooja.gadkari (see edit history)