Mostafa AHmadi
Mostafa AHmadi

Reputation: 335

WooCommerce - Adding Extra fee to Cart based on total items weight

I need to add charge on product total weight and show it in cart.
I mean in cart, when adding an item, i will set an extra charge.

This charge should be calculate like this:

$extra_charge = $total_cart_weight * 0.15;

If it's possible, How can I achieve this?

Thanks

Upvotes: 4

Views: 3576

Answers (2)

LoicTheAztec
LoicTheAztec

Reputation: 254373

You can do it easily hooking this function to woocommerce_cart_calculate_fees hook, this way:

function weight_add_cart_fee() {

    // Set here your percentage
    $percentage = 0.15;

    if ( is_admin() && ! defined( 'DOING_AJAX' ) )
        return;

    // Get weight of all items in the cart
    $cart_weight = WC()->cart->get_cart_contents_weight();

    // calculate the fee amount
    $fee = $cart_weight * $percentage;

    // If weight amount is not null, adds the fee calcualtion to cart
    if ( !empty( $cart_weight ) ) { 
        WC()->cart->add_fee( __('Extra charge (weight): ', 'your_theme_slug'), $fee, false );
    }
}
add_action( 'woocommerce_cart_calculate_fees','weight_add_cart_fee' );

This code is tested and works. It goes on function.php file of your active child theme or theme.

For tax options: see add_fee() method tax options depending on your global tax settings.

Reference:

Upvotes: 4

Clark Cody Maine
Clark Cody Maine

Reputation: 101

I believe you could use this plugin to create an extra charge category. You may have to edit the plugin to make the % of cart fee a % of total weight fee but it shouldn't be too hard to figure out. I can't really edit the plugin for you unless I know where you are getting the weight from. You just have to edit the wc-extra-fee-option.php file and change line 133 so that $extra_fee_option_cost will be multiplied by the weight instead of $total. You can do this by putting the weight in a class and then calling the class on line 133. Alternatively you could make the weight a global variable and simply use that global variable in place of $total on line 133. Hope this helps!

Upvotes: 0

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