184 lines
6.9 KiB
PHP
184 lines
6.9 KiB
PHP
<?php
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/**
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* 前端：为混装产品渲染自定义的“添加到购物车”表单，并处理验证和加入购物车的逻辑。
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*/
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defined('ABSPATH') || exit;
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class Yoone_Product_Bundles_Frontend {
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private static $_instance = null;
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public static function instance() {
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if (is_null(self::$_instance)) {
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self::$_instance = new self();
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}
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return self::$_instance;
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}
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private function __construct() {
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$this->setup_hooks();
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}
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/**
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* 设置所有与前端相关的钩子。
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*/
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public function setup_hooks() {
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// 处理混装产品的自定义“添加到购物车”流程
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add_filter('woocommerce_add_to_cart_validation', array($this, 'process_bundle_add_to_cart'), 10, 3);
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// 当混装容器被移除时，移除其子项目
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add_action('woocommerce_cart_item_removed', array($this, 'remove_bundle_children'), 10, 2);
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// 隐藏购物车中子项目的“移除”链接
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add_filter('woocommerce_cart_item_remove_link', array($this, 'hide_child_remove_link'), 10, 2);
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// 在购物车中，显示子项目所属的混装产品
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add_filter('woocommerce_get_item_data', array($this, 'display_child_bundle_link'), 10, 2);
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// 为混装产品页面添加 body class，以便于样式化
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add_filter('body_class', array($this, 'filter_body_class'));
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// 用我们的自定义表单替换默认的“添加到购物车”按钮
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add_action('woocommerce_single_product_summary', array($this, 'remove_default_add_to_cart_for_bundle'), 29);
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add_action('woocommerce_single_product_summary', array($this, 'render_bundle_add_to_cart_form'), 30);
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}
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/**
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* Hijack the add-to-cart process for bundle products.
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* Validates the submission, then adds the container and all child products to the cart.
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*
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* @return bool False to prevent the default add-to-cart action.
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*/
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public function process_bundle_add_to_cart($passed, $product_id, $quantity) {
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$product = wc_get_product($product_id);
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if (!$product || $product->get_type() !== Yoone_Product_Bundles::TYPE) {
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return $passed; // Not our product, pass through.
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}
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// 1. Validation
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$config = Yoone_Product_Bundles::get_bundle_config($product);
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$min_qty = max(1, absint($config['min_qty']));
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$components = !empty($_POST['yoone_bundle_components']) ? (array) $_POST['yoone_bundle_components'] : array();
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$total_qty = 0;
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$clean_components = array();
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foreach ($components as $comp_id => $qty) {
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$qty = absint($qty);
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if ($qty > 0) {
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$total_qty += $qty;
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$clean_components[absint($comp_id)] = $qty;
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}
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}
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if ($total_qty < $min_qty) {
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wc_add_notice(sprintf(__('You need to select at least %d items to add this bundle to your cart.', 'yoone-product-bundles'), $min_qty), 'error');
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return false;
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}
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// 2. Add items to cart
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try {
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$bundle_container_id = uniqid('bundle_');
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// Add the main bundle product (as a 0-price container)
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WC()->cart->add_to_cart($product_id, 1, 0, array(), array('yoone_bundle_container_id' => $bundle_container_id));
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// Add child components
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foreach ($clean_components as $comp_id => $qty) {
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WC()->cart->add_to_cart($comp_id, $qty, 0, array(), array(
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'yoone_bundle_parent_id' => $bundle_container_id,
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'yoone_bundle_parent_product_id' => $product_id
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));
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}
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// Set success message and redirect
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wc_add_to_cart_message(array($product_id => 1), true);
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add_filter('woocommerce_add_to_cart_redirect', function() { return wc_get_cart_url(); });
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} catch (Exception $e) {
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wc_add_notice($e->getMessage(), 'error');
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return false;
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}
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// Prevent default add-to-cart for the main product
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return false;
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}
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/**
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* When a cart item is removed, check if it's a bundle container.
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* If so, find and remove all its child items.
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*/
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public function remove_bundle_children($removed_cart_item_key, $cart) {
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$removed_item = $cart->get_removed_cart_items()[$removed_cart_item_key];
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if (isset($removed_item['yoone_bundle_container_id'])) {
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$bundle_container_id = $removed_item['yoone_bundle_container_id'];
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foreach ($cart->get_cart() as $cart_item_key => $cart_item) {
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if (isset($cart_item['yoone_bundle_parent_id']) && $cart_item['yoone_bundle_parent_id'] === $bundle_container_id) {
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$cart->remove_cart_item($cart_item_key);
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}
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}
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}
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}
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/**
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* Hide the remove link for child items of a bundle.
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*/
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public function hide_child_remove_link($link, $cart_item_key) {
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$cart_item = WC()->cart->get_cart_item($cart_item_key);
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if (isset($cart_item['yoone_bundle_parent_id'])) {
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return '';
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}
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return $link;
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}
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/**
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* For child items, add a meta line in the cart to link back to the parent bundle.
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*/
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public function display_child_bundle_link($item_data, $cart_item) {
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if (isset($cart_item['yoone_bundle_parent_product_id'])) {
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$parent_product = wc_get_product($cart_item['yoone_bundle_parent_product_id']);
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if ($parent_product) {
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$item_data[] = array(
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'key' => __('Part of', 'yoone-product-bundles'),
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'value' => $parent_product->get_name(),
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);
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}
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}
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return $item_data;
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}
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/**
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* Remove the default "Add to Cart" button for bundle products only.
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*/
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public function remove_default_add_to_cart_for_bundle() {
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global $product;
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if ($product && $product->get_type() === Yoone_Product_Bundles::TYPE) {
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remove_action('woocommerce_single_product_summary', 'woocommerce_template_single_add_to_cart', 30);
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}
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}
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/**
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* Render the custom "Add to Cart" form for bundle products.
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*/
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public function render_bundle_add_to_cart_form() {
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global $product;
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if ($product && $product->get_type() === Yoone_Product_Bundles::TYPE) {
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wc_get_template('global/yoone-bundle-form.php', array(), '', YOONE_PB_PATH . 'templates/');
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}
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}
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/**
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* Add a body class for bundle product pages.
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*/
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public function filter_body_class($classes) {
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global $post;
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if (is_singular('product') && $post) {
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$product = wc_get_product($post->ID);
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if ($product && $product->get_type() === Yoone_Product_Bundles::TYPE) {
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$classes[] = 'yoone-bundle-product';
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}
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}
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return $classes;
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}
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} |