实时更新产品类别购物车项目计数，而无需在Woocommerce中重新加载 [英] Live update product category cart item count without reloading in Woocommerce

问题描述

我创建了一个短代码，用于计算添加到购物车中的属于"72"个产品类别的产品数量.

I created a shortcode that counts the quantity of products belonging to the '72' product category, that are added to the cart.

我正在通过此答案线程使用自定义条件函数has_product_category():

I am using the custom conditional function has_product_category() from this answer thread:
Set item quantity to multiples of "x" for products in a specific category in Woocommerce

这是我的代码:

function cat_cart_count_bottiglie() {
    $bottiglie = 0; 

    // Iterating through each cart item
    foreach ( WC()->cart->get_cart() as $cart_item ) {
        if ( has_product_category( $cart_item['product_id'], $category_ids = array( 72 ) ) ) {
            $bottiglie += $cart_item['quantity'];
                }
    }
    return $bottiglie;
}
add_shortcode('bottiglie', 'cat_cart_count_bottiglie');

代码正常工作.

但是，只有在添加到购物车后刷新页面并且对于Ajax添加到购物车或在购物车页面中删除项目或更改项目数量时，此短代码计数才会更新.

But this shortcode count get updated only when the page is refreshed after add to cart and doesn't work for Ajax add to cart or when removing items or changing items quantity in cart page.

有没有一种方法可以立即获取更新?

Is there a way to get the update instantly?

推荐答案

以下代码将Ajax刷新您的简码自定义产品类别"72"项计数:

The following code will Ajax refresh your shortcode custom product category "72" item count:

// Custom conditional function that checks also for parent product category terms
function has_product_category( $product_id, $category_ids, $taxonomy = 'product_cat' ) {
    $term_ids = array(); // Initializing

    // Loop through the current product category terms to get only parent main category term
    foreach( get_the_terms( $product_id, $taxonomy ) as $term ){
        if( $term->parent > 0 ){
            $term_ids[] = $term->parent; // Set the parent product category
            $term_ids[] = $term->term_id;
        } else {
            $term_ids[] = $term->term_id;
        }
    }
    return array_intersect( $category_ids, array_unique($term_ids) );
}

// Custom function that count cart items remaining to a product_category
function get_bottiglie_count( $term_ids ){
    $count = 0; // Initializing

    // Loop through each cart item
    foreach ( WC()->cart->get_cart() as $cart_item ) {
        if ( has_product_category( $cart_item['product_id'], $term_ids ) ) {
            $count += $cart_item['quantity'];
        }
    }

    return $count;
}

// Ajax refressing count
add_filter( 'woocommerce_add_to_cart_fragments', 'refresh_bottiglie_count', 50, 1 );
function refresh_bottiglie_count( $fragments ){

    $fragments['#bottiglie-count'] = do_shortcode( "[bottiglie]" );

    return $fragments;
}

// Shortcode that display the count cart items remaining to a product_category
add_shortcode('bottiglie', 'shortcode_bottiglie_count');
function shortcode_bottiglie_count( $atts ) {
    return '<span id="bottiglie-count">' . get_bottiglie_count( array(72) ) . '</span>';
}

代码进入您的活动子主题(活动主题)的function.php文件中.经过测试，可以正常工作.

Code goes in function.php file of your active child theme (active theme). Tested and works.

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