Disable cart rules for products on sale

[LauraDo]

Hi, 

I have a cart rules with amount discount and i would like to disable those cart rules for promotional products (products for which I have set a specific price). 

I'm thinking to add a condition in cartRule class. But i'm not sure what to do exactly. 

 

Does anyone have any leads that could help me?

Thank you

I'm using Prestashop 1.7.7. 

 

[LauraDo]

Hi, 

 

I found a solution for disable card rules with amount reduction (since for percent reduction the option is already available) if there is a promotional product in the cart : 

in CartRules.php in public function checkValidity ad this : 

if((float) $this->reduction_amount > 0){
	$products = $context->cart->getProducts();
	foreach ($products as $product) {
		if ($product['reduction_applies']){
			return ('You cannot use this voucher on reduced products');
		}
	}
}

However the ideal would be to apply the reduction only on non-promotional products. 

Does anyone have any idea how to successfully do this ?