Split card when different products with different shipping classes are added in woocommerce

I face a problem in woocommerce shipping class. To explain it better I describe it with an example:

• Product A has Air Shipping class
• Product B has Road Shipping class
• product C has Possible shipping in road and air

I use the following code to split the order based on shipping class:

add_filter( 'woocommerce_cart_shipping_packages', 'wf_split_cart_by_shipping_class_group' );  function wf_split_cart_by_shipping_class_group($packages){      //Reset packages      $packages               = array();            //Init splitted package      $splitted_packages      =   array();            // Group of shipping class ids      $class_groups =  array(          'group1'    => array('plane'),          'group2'    =>  array('truck'),          // 'group3' =>  array(11,15,17),              );              foreach ( WC()->cart->get_cart() as $item_key => $item ) {          if ( $item['data']->needs_shipping() ) {                            $belongs_to_class_group =   'none';                            $item_ship_class_id =   $item['data']->get_shipping_class();                            if($item_ship_class_id){                                    foreach($class_groups as $class_group_key   =>  $class_group){                      if(in_array($item_ship_class_id, $class_group)){                                          $belongs_to_class_group = $class_group_key;                          continue;                      }                  }                                }                                       $splitted_packages[$belongs_to_class_group][$item_key]  =   $item;          }      }            // Add grouped items as packages       if(is_array($splitted_packages)){                    foreach($splitted_packages as $splitted_package_items){              $packages[] = array(                  'contents'        => $splitted_package_items,                  'contents_cost'   => array_sum( wp_list_pluck( $splitted_package_items, 'line_total' ) ),                  'applied_coupons' => WC()->cart->get_applied_coupons(),                  'user'            => array(                       'ID' => get_current_user_id(),                  ),                  'destination'    => array(                      'country'    => WC()->customer->get_shipping_country(),                      'state'      => WC()->customer->get_shipping_state(),                      'postcode'   => WC()->customer->get_shipping_postcode(),                      'city'       => WC()->customer->get_shipping_city(),                      'address'    => WC()->customer->get_shipping_address(),                      'address_2'  => WC()->customer->get_shipping_address_2()                  )              );          }      }      return $packages;  }  

in this code plan class and truck class separated. but in the case of product number 3, user should select between air and road, since it is optional. But, when user selects road in the total price the shipping cost apply twice, while I expect to add the weight to the first line and just calculate the shipping class once. Is it any solution to handle this problem?

https://stackoverflow.com/questions/65820337/split-card-when-different-products-with-different-shipping-classes-are-added-in January 21, 2021 at 10:23AM