刷新WooCommerce Minicart菜单项计数和总数

Question

在这个很棒的社区的帮助下，我已经能够创建一个WC迷你链接作为最后一个菜单项。

在查看了官方的WC文档后，我意识到我需要添加购物车片段，启用"自动更新"。关于购物车Ajax事件。

预期输出:用户点击添加到购物车，菜单项更新。

这是完整的代码，它或多或少地破坏了整个代码。我需要帮助来组合这两个功能。

add_filter( 'wp_nav_menu_header-menu_items', 'minicart_link_with_product_count_subtotal_and_shipping', 10, 2 );
function minicart_link_with_product_count_subtotal_and_shipping( $items, $args ) {
$order_total = WC()->cart->total;
$order_subtotal = WC()->cart->get_subtotal();
$shipping_total = wc_price($order_total - $order_subtotal);
$link_url = wc_get_cart_url(); // cart url 
// icon, product count, subtotal and shipping (based on if statement)
if (WC()->cart->is_empty()){
$link_text = sprintf( __( '<i class="shopping-cart"></i>', 'woocommerce' ));
} else {
$link_text = sprintf(__(
'<i class="shopping-cart"></i> %d - %s (%s)', 'woocommerce'),
WC()->cart->cart_contents_count,
wc_price(WC()->cart->get_subtotal()),
$shipping_total);
}
// link
$minicart_link = '<a title="View my cart" class="wcminicart" href="' . $link_url . '">' . $link_text . '</a>';
// return the link as last menu item
return $items . $minicart_link;
}
add_filter( 'woocommerce_add_to_cart_fragments', 'atc_fragments' );
function atc_fragments( $fragments ) {
ob_start();
$count = WC()->cart->cart_contents_count;
if ( $count > 0 ) { ?>
<span class="wcminicart-count"><?php echo esc_html( $count ); ?></span>
<?php
}
?></a><?php

$fragments['a.wcminicart'] = ob_get_clean();
return $fragments;
}

Answer 1

你的代码中有一些错误。试试下面的优化代码:

// Custom function that display minicart link with count and totals
function get_minicart_menu_item(){
$html_output = '<i class="shopping-cart"></i>';
// icon, product count, subtotal and shipping (based on if statement)
if ( ! WC()->cart->is_empty() ){
$cart_subtotal  = WC()->cart->get_subtotal();
$shipping_total = WC()->cart->total - $cart_subtotal;
$item_count     = WC()->cart->cart_contents_count;
$html_output .= sprintf( ' <span class="count">%d</span> - %s',
esc_html( $item_count ),
strip_tags( wc_price( $cart_subtotal ) )
);
if ( $shipping_total > 0 ) {
$html_output .= ' (' . strip_tags( wc_price( $shipping_total ) ) . ')';
}
}
return '<a title="View my cart" class="wcminicart" href="' . wc_get_cart_url() . '">' . $html_output . '</a>';
}
// Add mincart item link as last menu item on navigation menu
add_filter( 'wp_nav_menu_header-menu_items', 'minicart_link_with_product_count_subtotal_and_shipping', 10, 2 );
function minicart_link_with_product_count_subtotal_and_shipping( $items, $args ) {
return $items . get_minicart_menu_item(); // return the link as last menu item
}
// Refresh minicart menu item data on Ajax cart ajax events
add_filter( 'woocommerce_add_to_cart_fragments', 'ajax_refreshed_minicart_menu_item_data' );
function ajax_refreshed_minicart_menu_item_data( $fragments ) {
$fragments['a.wcminicart'] = get_minicart_menu_item();
return $fragments;
}

代码放在活动子主题(或活动主题)的functions.php文件中。

---

注意:

我也重命名了你的购物车项目计数的CSS类选择器为class="count"而不是wcminicart-count，因为你可以通过父类为你的CSS规则来定位它，例如:

.wcminicart > .count { text-align:center; }