Rate ordering?

Great idea, you put me on the right path and I had AI do the rest…

This seems to work as a snippet to sort them.

/**
 * Sorts WooCommerce shipping rates by cost in ASCENDING order (lowest first)
 * while preserving the unique rate IDs (keys).
 *
 * @param array $rates Array of shipping rates.
 * @return array Sorted array of shipping rates.
 */
function custom_sort_shipping_rates_by_cost_correctly( $rates ) {
    if ( ! is_array( $rates ) || empty( $rates ) ) {
        return $rates;
    }

    // IMPORTANT: Use uasort() to sort by cost while preserving the array keys (the Rate IDs).
    uasort( $rates, function( $a, $b ) {
        // Sort in ASCENDING order (lowest cost first).
        if ( $a->cost == $b->cost ) {
            return 0;
        }
        return ( $a->cost < $b->cost ) ? -1 : 1;
    } );

    // If you want the highest cost at the BOTTOM (which is what ascending order does),
    // you are done. The lowest price will be at the top.

    return $rates;
}
add_filter( 'woocommerce_package_rates', 'custom_sort_shipping_rates_by_cost_correctly', 999 );

Also, do you have any way to allow for products for free shipping? This plugin has a ton of potential but very limited in features at the moment.

• This reply was modified 6 months, 3 weeks ago by djmart177.
• This reply was modified 6 months, 3 weeks ago by djmart177.
• This reply was modified 6 months, 3 weeks ago by djmart177.

This seems to work as well. I even had it change the returned options to just show “Free Shipping” and no price attached. If the customer adds a product that is outside of the specific shipping class slug, it will then calculate shipping. Not my work, it is AI, so if you plan to use this as a guide, grain of salt.. lol

/**
 * Custom function to check for the "Free Shipping" class, adjust rates to zero,
 * and replace the label with "Free Shipping" for all returned options.
 *
 * @param array $rates Array of shipping rates.
 * @param array $package Package of cart items.
 * @return array Modified array of shipping rates.
 */
function custom_apply_free_shipping_by_class( $rates, $package ) {
    $has_free_shipping_class = false;
    // NOTE: Ensure this slug matches the slug of your WooCommerce shipping class exactly.
    $free_shipping_class_slug = 'free-shipping-usa-only'; 

    // 1. CHECK CART CONTENTS FOR THE SPECIFIC SHIPPING CLASS
    foreach ( $package['contents'] as $item ) {
        // Get the product's assigned shipping class ID
        $shipping_class_id = $item['data']->get_shipping_class_id();

        // Check if the shipping class slug matches
        if ( $shipping_class_id ) {
            $shipping_class = get_term( $shipping_class_id, 'product_shipping_class' );
            if ( $shipping_class && $shipping_class->slug === $free_shipping_class_slug ) {
                $has_free_shipping_class = true;
                break; // Found it, no need to check other items
            }
        }
    }

    // 2. ADJUST RATES AND LABELS IF THE CLASS IS FOUND
    if ( $has_free_shipping_class ) {
        $new_rates = array();
        
        // Loop through all calculated rates (FedEx, UPS, etc.)
        foreach ( $rates as $rate_id => $rate ) {
            /** @var \WC_Shipping_Rate $rate */
            
            // Clone the rate object to safely modify it
            $new_rate = clone $rate; 
            
            // 🎯 CORE CHANGE: Set the cost to zero and replace the label
            $new_rate->cost = 0;
            $new_rate->label = 'Free Shipping'; 
            
            // Set the taxes to zero (if taxes are enabled)
            if ( ! empty( $new_rate->taxes ) ) {
                $new_rate->taxes = array_map( 'wc_format_decimal', array_fill( 0, count( $new_rate->taxes ), 0 ) );
            }
            
            $new_rates[ $rate_id ] = $new_rate;
        }
        $rates = $new_rates;
    }

    // 3. SORT THE FINAL RATES (Maintaining the highest-cost-at-bottom rule)
    if ( ! is_array( $rates ) || empty( $rates ) ) {
        return $rates;
    }

    // Use uasort() to sort by cost while preserving the associative keys (Rate IDs).
    uasort( $rates, function( $a, $b ) {
        // Sort in ASCENDING order (lowest cost first / highest cost at the bottom).
        if ( $a->cost == $b->cost ) {
            return 0; // Maintain order if costs are equal
        }
        return ( $a->cost < $b->cost ) ? -1 : 1;
    } );

    return $rates;
}
add_filter( 'woocommerce_package_rates', 'custom_apply_free_shipping_by_class', 100, 2 );