John Davidson

Message:

I have written a function that should add discount amounts on the woo cart, depends on product combination and custom fields.
If the action is wp_footer i can see get_post_meta works well.
But if I write action to be woocommerce_cart_calculate_fees seems not to work fine.

Can anyone help me with getting into the right direction? Thanks
Here is my code and screenshot below for it:

add_action('woocommerce_cart_calculate_fees', 'action_woocommerce_cart_calculate_fees2');

function action_woocommerce_cart_calculate_fees2($cart)  {

  //  if ( is_admin() && ! defined( 'DOING_AJAX' ) )

       // return;

    

    //if ( did_action( 'woocommerce_before_calculate_totals' ) >= 1 )

        //return;



//$cart = WC()->cart->get_cart();



    foreach ( $cart as $cart_item_key => $cart_item ) {

        // Get product id

        $product_id = $cart_item['product_id'];

        $product = wc_get_product($product_id);

        //echo $product_id . "<br>";

    

        $is_enable = get_post_meta( $product_id, '_enable_promo_for_current_product', true );

        if ($is_enable == 'yes') {

            $product_arr[] = $product_id;

        }

    }

    foreach ( $product_arr as $val ) {

        $product = wc_get_product($val);

        

        $otstapka = get_post_meta( $val, '_procent_otstapka_promo', true );

    

        if (empty($otstapka)) {

            $otstapka = 10;

        }

        

        $value = get_post_meta( $val, 'wc_product_ids', true );

        

        if ( ! empty( $value ) ) {

            $promo_product = wc_get_product( $value );

            $name = $promo_product->name;

            $price = $promo_product->get_price();

            $sale_price = $price * (1 - ($otstapka / 100));

            $otstapka2 = $price - $sale_price;

            $product_promo_id = $promo_product->get_id();

                    

            if ( check_variation_is_in_cart($val) ) {

                $cart->add_fee('Отстъпка за промо пакет', -$otstapka2, false);

            }

        }

    }

    



}

---

My Answer:
) return; // Avoiding backend operations_ global $wpdb;_ foreach ($cart->get_cart() as $cart_item_key => $cart_item) {_ $product_id = $cart_item['product_id'];_ $custom_field_value = get_post_meta($product_id, 'custom_field_name', true);_ // Perform calculations based on $custom_field_value and add fees to cart_ }_}