运输是根据购物车的重量和购物车金额计算的

Question

在客户端WooCommerce网站中，启用免费送货方法的订单量最高为250。我使用下面的代码（来自此答案），以隐藏订单金额超过250时的其他运输费率，除非购物车中有重物。

add_filter( 'woocommerce_package_rates', 'conditionally_hide_other_shipping_based_on_items_weight', 100, 1 );
function conditionally_hide_other_shipping_based_on_items_weight( $rates ) {
    // targeted weight
    $target_product_weight = 12;
    $target_cart_amount = 250;
    WC()->cart->subtotal_ex_tax >= $target_cart_amount ? $passed = true : $passed = false ;
    // Iterating trough cart items to get the weight for each item
    foreach(WC()->cart->get_cart() as $cart_item){
        if( $cart_item['variation_id'] > 0)
            $item_id = $cart_item['variation_id'];
        else
            $item_id = $cart_item['product_id'];
        // Getting the product weight
        $product_weight = get_post_meta( $item_id , '_weight', true);
        if( !empty($product_weight) && $product_weight >= $target_cart_amount ){
            $light_products_only = false;
            break;
        }
        else $light_products_only = true;
    }
    // If 'free_shipping' method is available and if products are not heavy
    // and cart amout up to the target limit, we hide other methods
    $free = array();
    foreach ( $rates as $rate_id => $rate ) {
        if ( 'free_shipping' === $rate->method_id && $passed && $light_products_only ) {
            $free[ $rate_id ] = $rate;
            break;
        }
    }
    return ! empty( $free ) ? $free : $rates;
}

但是现在，我想设置一个将以两种方式计算的可变运输金额：

• 当订单金额低于250时，计算将为1欧元按订单项目重量。
• 当订单金额高达250时，将仅对重物重量进行计算（1欧元乘千乘）。如果没有沉重的物品，则可以免费送货。

我该如何实现，因为它有点复杂？
有任何轨道要遵循？

我尝试了一些现有相关的插件，但对于这种情况并不方便。

谢谢。

Answer 1

代码改进 （2019年3月）：

是的，如果没有带有自定义运费的插件，这是可能的，在购物车项目的重量和购物车金额上计算出来……但是您需要具有 'Flat rate' 运输方法设置最少的金额。通常，这应该与您使用的代码一起使用。

这是代码（注释）：

//Adding a custom Shipping Fee to cart based conditionaly on weight and cart amount
add_action('woocommerce_cart_calculate_fees', 'custom_conditional_shipping_fee', 10, 1);
function custom_conditional_shipping_fee( $cart ){
    ## --- YOUR SETTINGS --- ##
    $targeted_weight      = 20;  // Your targeted "heavy" product weight
    $targeted_cart_amount = 250; // Your targeted cart amount
    $price_per_kg         = 1;   // Price by Kg;
    $flat_rate_price      = 10;  // Set the cost like in 'flat rate' shipping method
    // Initializing variables
    $fee = $calculated_weight = 0;
    // For cart SUBTOTAL amount EXCLUDING TAXES
    $passed = $cart->subtotal_ex_tax >= $targeted_cart_amount ? true : false ;
    // For cart SUBTOTAL amount INCLUDING TAXES (replace by this):
    // $passed = $cart->subtotal >= $targeted_cart_amount ? true : false ;
    // Iterating through each cart items
    foreach( $cart->get_cart() as $cart_item ){
        // The Product weight
        $product_weight = $cart_item['data']->get_weight();
        // cart item weight
        $cart_item_weight = $cart_item['quantity'] * $cart_item['data']->get_weight();
        // When cart amount is up to 250, Adding weight of heavy items
        if($passed && $product_weight > $targeted_weight)
            $calculated_weight += $cart_item_weight;
    }
    #### Making the fee calculation ####
    // Cart is up to 250 with heavy items
    if ( $passed && $calculated_weight != 0 ) {
        // Fee is based on cumulated weight of heavy items
        $fee = ( $calculated_weight * $price_per_kg ) - $flat_rate_price;
    }
    // Cart is below 250
    elseif ( ! $passed ) {
        // Fee is based on cart total weight
        $fee = ( $cart->get_cart_contents_weight( ) * $price_per_kg ) - $flat_rate_price;
    }
    #### APPLYING THE CALCULATED FEE ####
    // When cart is below 250 or when there is heavy items
    if ($fee > 0){
        // Rounding the fee
        $fee = round( $fee );
        // This shipping fee is taxable (You can have it not taxable changing last argument to false)
        $cart->add_fee( __('Shipping weight fee', 'woocommerce'), $fee, true);
    }
}

代码在您的活动子主题（或主题）的function.php文件中或任何插件文件中。

此代码已测试并起作用

从费用计算中减去最小的"固定利率"金额，以这种方式，客户支付正确的价格。