Woocommerce所有購物車項目免費送貨，如果航運類是在購物車

Question

我想添加免費送貨，如果一個特定的產品在購物車。如果它是購物車中的唯一商品，我有一種方法可行，但只要向購物車中添加其他商品，它就不會起作用。該產品包含航運類免費送貨。 tl; dr即使將其他物品添加到購物車，我如何獲得此功能。

來源：https://www.speakinginbytes.com/2014/12/enable-free-shipping-per-product/

免費送貨某些類，如果

if (! class_exists('WC_Enable_Free_Shipping')) : 
class WC_Enable_Free_Shipping { 
    protected static $instance = null; 
    private function __construct() { 
     // add our check 
     add_filter('woocommerce_shipping_free_shipping_is_available', array($this, 'patricks_enable_free_shipping'), 20); 
    } 
    /** 
    * Enable free shipping for orders with products that have the free-shipping shipping class slug 
    */ 
    public function patricks_enable_free_shipping($is_available) { 
     global $woocommerce; 
     // set the shipping classes that are eligible 
     $eligible = array('free-shipping'); 
     // get cart contents 
     $cart_items = $woocommerce->cart->get_cart(); 
     // loop through the items checking to make sure they all have the right class 
     foreach ($cart_items as $key => $item) { 
      if (! in_array($item['data']->get_shipping_class(), $eligible)) { 
       // this item doesn't have the right class. return default availability 
       return $is_available; 
      } 
     } 
     // nothing out of the ordinary return true 
     return true; 
    } 
    /** 
    * Return an instance of this class. 
    */ 
    public static function get_instance() { 
     // If the single instance hasn't been set, set it now. 
     if (null == self::$instance) { 
      self::$instance = new self; 
     } 
     return self::$instance; 
    } 
} 
add_action('init', array('WC_Enable_Free_Shipping', 'get_instance'), 0); 
endif; 

隱藏其他運送方式免費送貨，可

function my_hide_shipping_when_free_is_available($rates) { 
    $free = array(); 
    foreach ($rates as $rate_id => $rate) { 
     if ('free_shipping' === $rate->method_id) { 
      $free[ $rate_id ] = $rate; 
      break; 
     } 
    } 
    return ! empty($free) ? $free : $rates; 
} 
add_filter('woocommerce_package_rates', 'my_hide_shipping_when_free_is_available', 100); 

Answer 1

你可以試試 「woocommerce_available_shipping_method」 鉤。此代碼應該可以幫助您：

add_filter('woocommerce_available_shipping_methods', 'custom_shipping_methods'); 
function custom_shipping_methods($available_methods) { 

    // Check your cart product's logic here 
    foreach (WC()->cart->cart_contents AS $item) { 

     // If something in cart then just keep free shipping in available method 
     // That logic goes here 
    } 

    // return available methods 
    return $available_methods; 
}