WooCommerce |根据购物车的总重量在运费表中添加通知答案

【问题标题】：WooCommerce | Add notification in shipping rate table based on the total weight of the cartWooCommerce |根据购物车的总重量在运费表中添加通知
【发布时间】：2021-05-20 13:38:40
【问题描述】：

我正在尝试在满足两个条件后立即向 WooCommerce 购物车页面的 shipping totals 行添加通知。

提供本地取货方式

与

我购物车中的产品总重量超过 14999 克。

我一直在玩 uderneath 的代码，它已经隐藏了某些运输方式（成功），但我无法在满足条件时添加简单的通知。

add_filter( 'woocommerce_package_rates', 'woocommerce_shipping_notification', 9999, 2 );
    
function woocommerce_shipping_notification( $rates, $package ) {
     
     if ( WC()->cart->get_cart_contents_weight() > 14999 ) {
       
         if ( isset( $rates['local_pickup:1'] ) )
             
             unset( $rates['flat_rate:2'], $rates['local_pickup:7'] );
            
            echo "My notification";
     }

    return $rates;
}

【问题讨论】：

标签： php woocommerce shipping-method

【解决方案1】：

if ( !class_exists( 'WooCommerce' ) ) return;

add_action('wp', function() {

    if ( is_cart() && !WC()->cart->is_empty() ) {
        
        $cart = WC()->cart;
        $products = $cart->get_cart_contents();
        $cat_ids = array('20', '22');
        $product_categories = array();
        $product_categories_ids = array();
        foreach($cat_ids as $key => $cat_id) {
            $product_categories = array_merge(
                $product_categories,
                get_categories(array(
                    'taxonomy' => 'product_cat',
                    'child_of' => $cat_id,  
                ))
            );
        }

        foreach($product_categories as $key => $category) {
            $product_categories_ids[] = $category->term_id;
        }

        $categories_included = function() use ( $products, $product_categories_ids ) {
            foreach( $products as $key => $product ) {              
                $terms = wp_get_object_terms(array($product['product_id']), 'product_cat');
                foreach( $terms as $_key => $term ) {       
                    if ( in_array( $term->term_id, $product_categories_ids) )
                        return true;
                }               
            }
            return false;
        };
        
        $only_pick_up = $categories_included() || $cart->get_cart_contents_weight() > 15000;    
        if ( $only_pick_up ) {

            add_action( 'woocommerce_before_cart', function() {
                echo 
                    '<div>
                        <h3>Please contact us to discuss the delivery options</h3>
                    </div>';
            });                 

            add_action('woocommerce_cart_totals_before_shipping', function() {
                foreach(WC()->shipping()->packages[0]['rates'] as $key => $rate) {
                    if ( $rate->__get('instance_id') != 18 ) {
                        unset(WC()->shipping()->packages[0]['rates'][$key]);
                    }
                }
            });

        }
    }

});

【讨论】：