Override Woocommerce function

Question

I need to fully change logic of function get_discounted_price in WC_Cart class .

In child functions.php i have wrote:

function get_discounted_price_new( $values, $price, $add_totals = false )
{
 //My code that extends standart function
}
add_action('get_discounted_price', 'get_discounted_price_new');

But i do not see any changes. Where is mistake?

Answer 1

I think do_action is not required.

You need the filter woocommerce_get_discounted_price .

Check the following code -

// define the woocommerce_get_discounted_price callback 
function filter_woocommerce_get_discounted_price( $price, $values, $instance ) { 
    // make filter magic happen here... 
    return $price; 
}; 

// add the filter 
add_filter( 'woocommerce_get_discounted_price', 'filter_woocommerce_get_discounted_price', 10, 3 );