顾客： 查看产品详情 添加到购物车 下单 查看订单状态 管理员： 添加新产品 编辑产品信息 处理订单 生成报告 支付系统： 接收支付请求 验证支付信息 返回支付状态 配送服务： 接收发货请求 提供实时配送状态更新。 根据这些信息画一个订货系统的用例图

我想要用代码定制的方式来创造淘宝式的购物车，以下是我已生成的代码 cart.php <?php /** * Custom Cart Page for WooCommerce with Selective Checkout */ if (!defined('ABSPATH')) { exit; } do_action('woocommerce_before_cart'); // Provide context for JS (no layout change) $pc_cart_is_empty = WC()->cart->is_empty(); function pc_uid_for_view() { if (is_user_logged_in()) return 'user_' . get_current_user_id(); if (empty($_COOKIE['pc_cart_uid'])) { $token = wp_generate_uuid4(); setcookie('pc_cart_uid', $token, time() + YEAR_IN_SECONDS, COOKIEPATH ?: '/', '', is_ssl(), false); $_COOKIE['pc_cart_uid'] = $token; } return 'guest_' . sanitize_text_field(wp_unslash($_COOKIE['pc_cart_uid'])); } $pc_uid = pc_uid_for_view(); ?> <form class="woocommerce-cart-form" action="<?php echo esc_url( wc_get_cart_url() ); ?>" method="post"> <?php do_action('woocommerce_before_cart_table'); ?> <?php wp_nonce_field('woocommerce-cart', 'woocommerce-cart-nonce'); ?> <input type="checkbox" id="select-all-items" /> <label for="select-all-items" style="display: inline-block; margin-left: 5px; cursor: pointer;">全选</label> <?php esc_html_e('Product', 'woocommerce'); ?> <?php esc_html_e('Price', 'woocommerce'); ?> <?php esc_html_e('Quantity', 'woocommerce'); ?> <?php esc_html_e('Subtotal', 'woocommerce'); ?> <?php esc_html_e('操作', 'woocommerce'); ?> <?php do_action('woocommerce_before_cart_contents'); ?> <?php foreach ( WC()->cart->get_cart() as $cart_item_key => $cart_item ) : ?> <?php $_product = apply_filters('woocommerce_cart_item_product', $cart_item['data'], $cart_item, $cart_item_key); $product_id = apply_filters('woocommerce_cart_item_product_id', $cart_item['product_id'], $cart_item, $cart_item_key); if ( $_product && $_product->exists() && $cart_item['quantity'] > 0 && apply_filters('woocommerce_cart_item_visible', true, $cart_item, $cart_item_key) ) : $product_permalink = apply_filters('woocommerce_cart_item_permalink', $_product->is_visible() ? $_product->get_permalink($cart_item) : '', $cart_item, $cart_item_key); $line_total_value = (float) ($cart_item['line_total'] + $cart_item['line_tax']); $variation_id = isset($cart_item['variation_id']) ? (int)$cart_item['variation_id'] : 0; $variation_data = isset($cart_item['variation']) ? $cart_item['variation'] : array(); $variation_json = wp_json_encode($variation_data); ?> <input type="checkbox" class="item-checkbox" name="selected_items[]" value="<?php echo esc_attr($cart_item_key); ?>" data-price="<?php echo esc_attr($line_total_value); ?>" /> <?php $thumbnail = apply_filters('woocommerce_cart_item_thumbnail', $_product->get_image(), $cart_item, $cart_item_key); if ( ! $product_permalink ) : echo $thumbnail; // PHPCS: XSS ok. else : printf('%s', esc_url($product_permalink), $thumbnail); // PHPCS: XSS ok. endif; ?> <?php if ( ! $product_permalink ) : echo wp_kses_post( apply_filters('woocommerce_cart_item_name', $_product->get_name(), $cart_item, $cart_item_key) . ' ' ); else : echo wp_kses_post( apply_filters('woocommerce_cart_item_name', sprintf('%s', esc_url($product_permalink), $_product->get_name()), $cart_item, $cart_item_key) ); endif; do_action('woocommerce_after_cart_item_name', $cart_item, $cart_item_key); echo wc_get_formatted_cart_item_data($cart_item); // PHPCS: XSS ok. ?> <?php echo apply_filters('woocommerce_cart_item_price', WC()->cart->get_product_price($_product), $cart_item, $cart_item_key); // PHPCS: XSS ok. ?> <?php if ( $_product->is_sold_individually() ) : $product_quantity = sprintf('1 <input type="hidden" name="cart[%s][qty]" value="1" />', $cart_item_key); else : $product_quantity = woocommerce_quantity_input( array( 'input_name' => "cart[{$cart_item_key}][qty]", 'input_value' => $cart_item['quantity'], 'max_value' => $_product->get_max_purchase_quantity(), 'min_value' => '0', 'product_name' => $_product->get_name(), ), $_product, false ); endif; echo apply_filters('woocommerce_cart_item_quantity', $product_quantity, $cart_item_key, $cart_item); // PHPCS: XSS ok. ?> 保存中… <?php echo apply_filters('woocommerce_cart_item_subtotal', WC()->cart->get_product_subtotal($_product, $cart_item['quantity']), $cart_item, $cart_item_key); // PHPCS: XSS ok. ?> <?php echo apply_filters('woocommerce_cart_item_remove_link', sprintf( '×', esc_url( wc_get_cart_remove_url($cart_item_key) ), esc_attr__('Remove this item', 'woocommerce'), esc_attr($product_id), esc_attr($_product->get_sku()) ), $cart_item_key); ?> <?php endif; ?> <?php endforeach; ?> <?php do_action('woocommerce_after_cart_contents'); ?> <?php do_action('woocommerce_after_cart_table'); ?> </form> <input type="checkbox" id="footer-select-all"> <label for="footer-select-all" style="display: inline-block; margin-left: 5px; cursor: pointer;">全选</label> <button type="button" class="button" id="remove-selected-items">刪除選中的商品</button> <button type="button" class="button" id="clear-cart">清空購物車</button> <input type="text" name="coupon_code" class="input-text" id="coupon_code" value="" placeholder="输入优惠券代码" style="padding: 8px; width: 200px; border: 1px solid #ddd; border-radius: 4px; margin-right: 5px;" /> <button type="button" class="button" id="apply-coupon">应用优惠券</button> 已选商品: 0 件，共计: RM0.00 结算 <?php do_action('woocommerce_after_cart'); ?> <style> /* Layout styles (unchanged) */ .cart-page-section { background: white; padding: 30px; border-radius: 8px; box-shadow: 0 0 10px rgba(0, 0, 0, 0.1); margin-bottom: 30px; } .cart-page-section table.cart { width: 100%; border-collapse: collapse; margin-bottom: 20px; } .cart-page-section table.cart th, .cart-page-section table.cart td { padding: 15px; text-align: left; border-bottom: 1px solid #eee; } .cart-page-section table.cart th { background-color: #f8f8f8; font-weight: bold; } .cart-page-section table.cart th.product-select, .cart-page-section table.cart td.product-select { width: 8%; text-align: center; vertical-align: middle; white-space: nowrap; } .cart-page-section table.cart td.product-info { width: 37%; vertical-align: top; } .cart-page-section table.cart .product-info .product-image { float: left; margin-right: 15px; width: 100px; height: 100px; } .cart-page-section table.cart .product-info .product-image img { max-width: 100%; height: auto; display: block; } .cart-page-section table.cart .product-info .product-name { overflow: hidden; } .cart-page-section table.cart td.product-price, .cart-page-section table.cart td.product-quantity, .cart-page-section table.cart td.product-subtotal { width: 15%; vertical-align: middle; } .cart-page-section table.cart td.product-remove { width: 5%; text-align: center; vertical-align: middle; } .cart-footer-actions { position: sticky; bottom: 0; background: #fff; padding: 15px; border-top: 1px solid #ddd; box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1); z-index: 1000; display: flex; flex-direction: column; gap: 15px; } .footer-left { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; } .coupon-section { display: flex; align-items: center; gap: 5px; } .selected-summary { font-size: 16px; font-weight: bold; flex: 1; } .cart-footer-actions .button { padding: 10px 20px; background-color: #f44336; color: white; border: none; border-radius: 4px; cursor: pointer; font-size: 14px; transition: background-color 0.3s; white-space: nowrap; } .cart-footer-actions .button:hover { background-color: #d32f2f; } #partial-checkout { padding: 12px 24px; background-color: #2196F3; color: white; text-decoration: none; border-radius: 4px; display: inline-block; transition: background-color 0.3s; white-space: nowrap; text-align: center; font-weight: bold; } #partial-checkout:hover { background-color: #0b7dda; } #coupon_code { padding: 8px; width: 200px; border: 1px solid #ddd; border-radius: 4px; transition: border-color 0.3s; } #coupon_code:focus { border-color: #2196F3; outline: none; } /* Responsive (unchanged) */ @media (max-width: 768px) { .cart-page-section table.cart thead { display: none; } .cart-page-section table.cart td { display: block; width: 100% !important; text-align: right; padding: 10px; position: relative; padding-left: 50%; } .cart-page-section table.cart td::before { content: attr(data-title); position: absolute; left: 15px; font-weight: bold; text-align: left; } .cart-page-section table.cart .product-info .product-image { float: none; margin: 0 auto 10px; } .cart-page-section table.cart td.product-select::before { content: "选择"; } .cart-footer-actions { flex-direction: column; align-items: flex-start; } .footer-left { width: 100%; justify-content: space-between; } .coupon-section { width: 100%; margin-top: 10px; } .coupon-section input { flex: 1; } .cart-footer-actions .footer-bottom-row { flex-direction: column; align-items: stretch; } .selected-summary { text-align: center; margin-bottom: 10px; } #partial-checkout { width: 100%; padding: 15px; } .cart-footer-actions .button { padding: 12px 15px; margin: 5px 0; width: 100%; text-align: center; } } @media (max-width: 480px) { .cart-page-section { padding: 15px; } .cart-page-section table.cart td { padding-left: 45%; } .cart-page-section table.cart td::before { font-size: 14px; } .cart-footer-actions { padding: 10px; } #coupon_code { width: 100%; } } /* Loader overlay above quantity input */ .product-quantity .quantity { position: relative; /* anchor for overlay */ } .quantity-saving-overlay { position: absolute; top: 0; left: 0; right: 0; height: 100%; display: none; /* hidden by default */ align-items: flex-start; /* appear at top */ justify-content: center;/* centered horizontally */ padding-top: 2px; background: rgba(255,255,255,0.0); /* transparent so it doesn't dim UI */ z-index: 10; pointer-events: none; /* don't block typing/clicks when visible */ } .quantity-saving-loader { width: 20px; height: 20px; border: 3px solid #f3f3f3; border-top: 3px solid #3498db; border-radius: 50%; animation: spin 0.8s linear infinite; } @keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } } </style> <script> jQuery(function($){ // Context var PC = { ajax_url: (window.wc_cart_params && window.wc_cart_params.ajax_url) || '<?php echo esc_url( admin_url("admin-ajax.php") ); ?>', security: (function(){ var n = $('input[name="woocommerce-cart-nonce"]').val(); if (n) return n; if (window.wc_cart_params && window.wc_cart_params.cart_nonce) return window.wc_cart_params.cart_nonce; return '<?php echo wp_create_nonce("woocommerce-cart"); ?>'; })(), cart_is_empty: <?php echo $pc_cart_is_empty ? 'true' : 'false'; ?>, cart_uid: '<?php echo esc_js($pc_uid); ?>' }; // Keys function lsKey(name){ return 'pc_' + name + '_' + PC.cart_uid; } var LS_SELECTION = lsKey('selected_items'); var LS_MASTER = lsKey('cart_master'); // Utilities function getSelectedKeys(){ return $('.item-checkbox:checked').map(function(){ return this.value; }).get(); } function fmtRM(n){ n = isNaN(n) ? 0 : n; return 'RM' + Number(n).toFixed(2); } // Selection persistence function readSelection(){ try { return JSON.parse(localStorage.getItem(LS_SELECTION) || '[]'); } catch(e){ return []; } } function writeSelection(keys){ try { localStorage.setItem(LS_SELECTION, JSON.stringify(keys||[])); } catch(e){} } function restoreSelectionFromLS(){ var saved = readSelection(); if (!Array.isArray(saved)) saved = []; $('.item-checkbox').each(function(){ $(this).prop('checked', saved.indexOf(this.value) !== -1); }); } window.addEventListener('storage', function(ev){ if (ev.key === LS_SELECTION) { restoreSelectionFromLS(); updateSelectedSummary(); } }); // Selected summary function updateSelectedSummary(){ var total = 0, count = 0; $('.item-checkbox:checked').each(function(){ var price = parseFloat($(this).data('price')); if (!isNaN(price)) { total += price; count++; } }); $('#selected-count').text(count); $('#selected-total').text(fmtRM(total)); var totalCbs = $('.item-checkbox').length; var checkedCbs = $('.item-checkbox:checked').length; var allChecked = totalCbs > 0 && checkedCbs === totalCbs; $('#select-all-items, #footer-select-all').prop('checked', allChecked); writeSelection(getSelectedKeys()); } // Select all $('#select-all-items, #footer-select-all').off('change.sc').on('change.sc', function(){ var checked = $(this).prop('checked'); $('.item-checkbox').prop('checked', checked); updateSelectedSummary(); }); // 单个勾选项变化时，更新统计与“全选”状态 $(document).on('change', '.item-checkbox', updateSelectedSummary); // Snapshot cart DOM -> localStorage (guest resilience) function snapshotCartFromDOM() { var items = []; $('tr.cart_item').each(function(){ var $row = $(this); var pid = parseInt($row.attr('data-product_id'),10)||0; var vid = parseInt($row.attr('data-variation_id'),10)||0; var qty = parseFloat($row.find('input.qty').val())||0; var variation = {}; try { variation = JSON.parse($row.attr('data-variation')||'{}'); } catch(e){ variation = {}; } if (pid && qty > 0) { items.push({ product_id: pid, variation_id: vid, variation: variation, quantity: qty }); } }); try { localStorage.setItem(LS_MASTER, JSON.stringify({ ts: Date.now(), items: items })); } catch(e){} } function maybeRehydrateFromLocal() { if (!PC.cart_is_empty) return; var raw = localStorage.getItem(LS_MASTER); if (!raw) return; var data; try { data = JSON.parse(raw); } catch(e){ return; } var items = (data && data.items) ? data.items : []; if (!items.length) return; $.ajax({ url: PC.ajax_url, method: 'POST', dataType: 'json', data: { action: 'pc_rehydrate_cart', security: PC.security, items: JSON.stringify(items) } }).done(function(res){ if (res && res.success) { location.reload(); // display rehydrated items } }); } // 统一的购物车数量更新函数 function updateHeaderCartCount() { $.ajax({ url: PC.ajax_url, method: 'POST', data: { action: 'get_cart_count', security: PC.security } }).done(function(res) { if (res && res.success) { $('.header-cart-count, .cart-count').text(res.data.count); } }).fail(function() { console.error('Failed to update cart count'); }); } // AFTER $('#remove-selected-items').off('click.sc').on('click.sc', function(){ var keys = getSelectedKeys(); if (!keys.length) { alert('请选择要删除的商品'); return; } if (!confirm('确定要删除选中的商品吗？')) return; $.ajax({ url: PC.ajax_url, method: 'POST', dataType: 'json', data: { action: 'remove_selected_cart_items', selected_items: keys, security: PC.security } }).done(function(res){ if (res && res.success) { keys.forEach(function(k){ var $row = $('tr.cart_item[data-cart_item_key="'+k+'"]'); $row.fadeOut(250, function(){ $(this).remove(); updateSelectedSummary(); updateHeaderCartCount(); // 更新购物车数量 }); }); snapshotCartFromDOM(); // 从本地选择集合中剔除已删除项 var saved = readSelection().filter(function(k0){ return keys.indexOf(k0) === -1; }); writeSelection(saved); } else { alert((res && res.data && (res.data.message || res.data)) || '删除失败，请重试'); } }).fail(function(){ alert('删除失败，请重试'); }); }); // AFTER $('#clear-cart').off('click.sc').on('click.sc', function(){ if (!confirm('确定要清空购物车吗？')) return; $.ajax({ url: PC.ajax_url, method: 'POST', dataType: 'json', data: { action: 'empty_cart', security: PC.security } }).done(function(res){ if (res && res.success) { writeSelection([]); localStorage.removeItem(LS_MASTER); location.reload(); } else { alert((res && res.data && (res.data.message || res.data)) || '清空购物车失败，请重试'); } }).fail(function(){ alert('清空购物车失败，请重试'); }); }); // Apply coupon // AFTER $('#apply-coupon').off('click.sc').on('click.sc', function(){ var code = ($.trim($('#coupon_code').val()) || ''); if (!code) { alert('请输入优惠券代码'); return; } var $btn = $(this).prop('disabled', true).text('处理中...'); $.ajax({ url: PC.ajax_url, method: 'POST', dataType: 'json', data: { action: 'apply_coupon', coupon_code: code, security: PC.security } }).done(function(res){ if (res && res.success) { location.reload(); } else { alert((res && res.data && (res.data.message || res.data)) || '优惠券应用失败，请重试'); $btn.prop('disabled', false).text('应用优惠券'); } }).fail(function(){ alert('发生错误，请重试'); $btn.prop('disabled', false).text('应用优惠券'); }); }); // ---- Quantity auto-save (fixed regex + loader above input) ---- // 已修正：正确的正则表达式 function parseCartKeyFromInputName(n) { var m = (n || '').match(/^cart\[([a-zA-Z0-9_]+)\]\[qty\]$/); return m ? m[1] : null; } function ensureLoader($quantityContainer){ var $overlay = $quantityContainer.find('.quantity-saving-overlay'); if (!$overlay.length) { $overlay = $(''); $quantityContainer.append($overlay); } return $overlay; } var qtyTimers = {}; $(document).on('input change', 'input.qty', function(){ var $input = $(this); var key = parseCartKeyFromInputName($input.attr('name')); if (!key) return; var $row = $input.closest('tr.cart_item'); var $quantityContainer = $input.closest('.quantity'); var val = parseInt($input.val(), 10); if (isNaN(val) || val < 0) val = 0; // debounce if (qtyTimers[key]) clearTimeout(qtyTimers[key]); var $overlay = ensureLoader($quantityContainer); $overlay.hide(); qtyTimers[key] = setTimeout(function(){ $overlay.show(); $input.prop('disabled', true); $.ajax({ url: PC.ajax_url, method: 'POST', dataType: 'json', data: { action: 'update_cart_item_qty', cart_item_key: key, qty: val, security: PC.security } }).done(function(res){ if (res && res.success && res.data){ if (res.data.subtotal_html) { $row.find('td.product-subtotal').html(res.data.subtotal_html); } var $cb = $row.find('.item-checkbox'); if ($cb.length && typeof res.data.line_total_incl_tax === 'number') { $cb.attr('data-price', res.data.line_total_incl_tax); } if (val === 0 || res.data.removed) { $row.fadeOut(300, function(){ $(this).remove(); snapshotCartFromDOM(); updateSelectedSummary(); updateHeaderCartCount(); // 更新购物车数量 }); } else { snapshotCartFromDOM(); updateSelectedSummary(); updateHeaderCartCount(); // 更新购物车数量 } } else { var msg = (res && res.data && (res.data.message || res.data)) || '数量更新失败'; alert(msg); } }).fail(function(){ alert('数量更新失败，请重试'); }).always(function(){ $overlay.hide(); $input.prop('disabled', false); }); }, 500); // 0.5s debounce }); // Partial checkout -> regular checkout page $('#partial-checkout').off('click.sc').on('click.sc', function(e){ e.preventDefault(); var keys = getSelectedKeys(); if (!keys.length) { alert('请至少选择一件商品结算'); return; } var $btn = $(this), t = $btn.text(); $btn.prop('disabled', true).text('创建订单中...'); snapshotCartFromDOM(); $.ajax({ url: PC.ajax_url, method: 'POST', dataType: 'json', data: { action: 'create_direct_order', selected_items: keys, security: PC.security } }).done(function(res){ if (res && res.success && res.data && res.data.checkout_url) { window.location.href = res.data.checkout_url; // /checkout/?pc_token=... } else { alert((res && res.data && (res.data.message || res.data)) || '创建订单失败，请重试'); $btn.prop('disabled', false).text(t); } }).fail(function(xhr){ var msg = '创建订单失败'; if (xhr && xhr.responseJSON && xhr.responseJSON.data) { msg += '：' + (xhr.responseJSON.data.message || xhr.responseJSON.data); } alert(msg); $btn.prop('disabled', false).text(t); }); }); // Keep LS selection after clicking "x" remove; also snapshot $(document).on('click', 'a.remove', function(){ var key = $(this).closest('tr.cart_item').attr('data-cart_item_key'); if (key) { var saved = readSelection().filter(function(k){ return k !== key; }); writeSelection(saved); snapshotCartFromDOM(); updateHeaderCartCount(); // 更新购物车数量 } }); // Init restoreSelectionFromLS(); updateSelectedSummary(); snapshotCartFromDOM(); maybeRehydrateFromLocal(); updateHeaderCartCount(); // 初始加载时更新购物车数量 }); </script> functions.php <?php defined('ABSPATH') || exit; /** * 健壮的部分结算系统 - 带持久化购物车快照 * - 结算前创建完整购物车快照 * - 订单创建成功后才移除商品 * - 感谢页面重建购物车（快照 - 已购买商品） * - 取消/返回时恢复完整快照 * - 访客支持：localStorage + AJAX 重新水合 */ /* ------------------------------------------------- * 辅助函数 * ------------------------------------------------- */ /** * 购物车数量AJAX端点 */ add_action('wp_ajax_get_cart_count', 'pc_get_cart_count'); add_action('wp_ajax_nopriv_get_cart_count', 'pc_get_cart_count'); function pc_get_cart_count() { check_ajax_referer('woocommerce-cart', 'security'); $count = WC()->cart->get_cart_contents_count(); wp_send_json_success(array('count' => $count)); } function pc_get_cart_uid() { if (is_user_logged_in()) { return 'user_' . get_current_user_id(); } if (empty($_COOKIE['pc_cart_uid'])) { $token = wp_generate_uuid4(); setcookie('pc_cart_uid', $token, time() + YEAR_IN_SECONDS, COOKIEPATH ?: '/', '', is_ssl(), false); $_COOKIE['pc_cart_uid'] = $token; } return 'guest_' . sanitize_text_field(wp_unslash($_COOKIE['pc_cart_uid'])); } function pc_build_item_key($product_id, $variation_id = 0) { return (int)$product_id . '|' . (int)$variation_id; } function pc_snapshot_current_cart() { if (!isset(WC()->cart)) { wc_load_cart(); } $items = array(); foreach (WC()->cart->get_cart() as $ci_key => $ci) { $pid = isset($ci['product_id']) ? (int)$ci['product_id'] : 0; $vid = isset($ci['variation_id']) ? (int)$ci['variation_id'] : 0; $qty = isset($ci['quantity']) ? wc_stock_amount($ci['quantity']) : 0; $var = isset($ci['variation']) && is_array($ci['variation']) ? $ci['variation'] : array(); if ($pid && $qty > 0) { $items[] = array( 'product_id' => $pid, 'variation_id' => $vid, 'variation' => array_map('wc_clean', $var), 'quantity' => $qty, ); } } return [ 'items' => $items, 'coupons' => WC()->cart->get_applied_coupons() ]; } /** * 恢复购物车优惠券 */ function pc_restore_cart_coupons($coupons) { if (!isset(WC()->cart)) { wc_load_cart(); } // 先移除所有现有优惠券 foreach (WC()->cart->get_applied_coupons() as $coupon_code) { WC()->cart->remove_coupon($coupon_code); } // 应用快照中的优惠券 foreach ($coupons as $coupon_code) { if (WC()->cart->is_valid_coupon($coupon_code)) { WC()->cart->apply_coupon($coupon_code); } } WC()->cart->calculate_totals(); } function pc_restore_cart_from_items($items) { if (!isset(WC()->cart)) { wc_load_cart(); } WC()->cart->empty_cart(); foreach ((array)$items as $it) { $pid = isset($it['product_id']) ? (int)$it['product_id'] : 0; $vid = isset($it['variation_id']) ? (int)$it['variation_id'] : 0; $qty = isset($it['quantity']) ? wc_stock_amount($it['quantity']) : 0; $var = isset($it['variation']) && is_array($it['variation']) ? array_map('wc_clean', $it['variation']) : array(); if ($pid && $qty > 0) { $product = wc_get_product($pid); // 检查商品是否有效且库存可用 if ($product && $product->exists() && $product->is_in_stock()) { // 获取库存数量 $stock_qty = $product->get_stock_quantity(); if ($stock_qty !== null) { $actual_qty = min($qty, $stock_qty); } else { $actual_qty = $qty; } WC()->cart->add_to_cart( $pid, $actual_qty, $vid, $var ); } } } WC()->cart->calculate_totals(); } // 完全重构的购物车恢复逻辑 - 确保WC会话存在 add_action('wp_loaded', function() { // 严格检查WC会话可用性 $wc = function_exists('WC') ? WC() : null; if (!$wc) return; $session = property_exists($wc, 'session') ? $wc->session : null; if (!$session) return; $token = method_exists($session, 'get') ? $session->get('pc_partial_token') : null; if (!$token) return; // 检查购物车是否为空 $cart = property_exists($wc, 'cart') ? $wc->cart : null; if (!$cart) return; if ($cart->is_empty()) { $payload = get_transient(pc_transient_key($token)); if (!empty($payload['snapshot'])) { pc_restore_cart_from_items($payload['snapshot']['items']); pc_restore_cart_coupons($payload['snapshot']['coupons']); $cart->calculate_totals(); } } }, 20); function pc_transient_key($token) { return 'pc_partial_payload_' . sanitize_key($token); } /* ------------------------------------------------- * AJAX: 当Woo购物车为空时本地重新水合 * ------------------------------------------------- */ add_action('wp_ajax_pc_rehydrate_cart', 'pc_rehydrate_cart'); add_action('wp_ajax_nopriv_pc_rehydrate_cart', 'pc_rehydrate_cart'); function pc_rehydrate_cart() { check_ajax_referer('woocommerce-cart', 'security'); $raw = isset($_POST['items']) ? wp_unslash($_POST['items']) : ''; $items = is_string($raw) ? json_decode($raw, true) : (array)$raw; if (!is_array($items)) { wp_send_json_error(array('message' => '无效的商品数据'), 400); } if (!isset(WC()->cart)) { wc_load_cart(); } if (!WC()->cart->is_empty()) { wp_send_json_success(array('message' => '购物车非空')); } foreach ($items as $it) { $pid = isset($it['product_id']) ? (int)$it['product_id'] : 0; $vid = isset($it['variation_id']) ? (int)$it['variation_id'] : 0; $qty = isset($it['quantity']) ? wc_stock_amount($it['quantity']) : 0; $var = isset($it['variation']) && is_array($it['variation']) ? array_map('wc_clean', $it['variation']) : array(); if ($pid && $qty > 0) { $product = wc_get_product($pid); if ($product && $product->exists() && $product->is_in_stock()) { // 检查库存 $stock_qty = $product->get_stock_quantity(); if ($stock_qty !== null) { $qty = min($qty, $stock_qty); } WC()->cart->add_to_cart($pid, $qty, $vid, $var); } } } WC()->cart->calculate_totals(); wp_send_json_success(array('rehydrated' => true)); } /* ------------------------------------------------- * AJAX: 更新购物车商品数量（无需刷新页面） * ------------------------------------------------- */ add_action('wp_ajax_update_cart_item_qty', 'pc_update_cart_item_qty'); add_action('wp_ajax_nopriv_update_cart_item_qty', 'pc_update_cart_item_qty'); function pc_update_cart_item_qty() { check_ajax_referer('woocommerce-cart', 'security'); $key = isset($_POST['cart_item_key']) ? wc_clean(wp_unslash($_POST['cart_item_key'])) : ''; $qty = isset($_POST['qty']) ? wc_stock_amount($_POST['qty']) : null; if (!$key || $qty === null) { wp_send_json_error(array('message' => '参数缺失'), 400); } if (!isset(WC()->cart)) { wc_load_cart(); } if ($qty <= 0) { $removed = WC()->cart->remove_cart_item($key); WC()->cart->calculate_totals(); wp_send_json_success(array('removed' => (bool)$removed)); } else { $set = WC()->cart->set_quantity($key, $qty, true); WC()->cart->calculate_totals(); $cart_item = WC()->cart->get_cart_item($key); if (!$cart_item) { wp_send_json_error(array('message' => '更新后未找到购物车商品'), 404); } $_product = $cart_item['data']; $subtotal_html = apply_filters( 'woocommerce_cart_item_subtotal', WC()->cart->get_product_subtotal($_product, $cart_item['quantity']), $cart_item, $key ); // 小计计算（含税） $line_total_incl_tax = (float)($cart_item['line_total'] + $cart_item['line_tax']); wp_send_json_success(array( 'subtotal_html' => $subtotal_html, 'line_total_incl_tax' => $line_total_incl_tax, 'removed' => false, )); } } /* ------------------------------------------------- * AJAX: 删除选中商品 * ------------------------------------------------- */ add_action('wp_ajax_remove_selected_cart_items', 'pc_remove_selected_cart_items'); add_action('wp_ajax_nopriv_remove_selected_cart_items', 'pc_remove_selected_cart_items'); function pc_remove_selected_cart_items() { check_ajax_referer('woocommerce-cart', 'security'); $keys = isset($_POST['selected_items']) ? (array) $_POST['selected_items'] : array(); if (!isset(WC()->cart)) { wc_load_cart(); } foreach ($keys as $k) { $k = wc_clean(wp_unslash($k)); WC()->cart->remove_cart_item($k); } WC()->cart->calculate_totals(); wp_send_json_success(true); } /* ------------------------------------------------- * AJAX: 清空购物车 * ------------------------------------------------- */ add_action('wp_ajax_empty_cart', 'pc_empty_cart'); add_action('wp_ajax_nopriv_empty_cart', 'pc_empty_cart'); function pc_empty_cart() { check_ajax_referer('woocommerce-cart', 'security'); if (!isset(WC()->cart)) { wc_load_cart(); } WC()->cart->empty_cart(); wp_send_json_success(true); } /* ------------------------------------------------- * AJAX: 应用优惠券 * ------------------------------------------------- */ add_action('wp_ajax_apply_coupon', 'pc_apply_coupon'); add_action('wp_ajax_nopriv_apply_coupon', 'pc_apply_coupon'); function pc_apply_coupon() { check_ajax_referer('woocommerce-cart', 'security'); $code = isset($_POST['coupon_code']) ? wc_format_coupon_code(wp_unslash($_POST['coupon_code'])) : ''; if (!$code) { wp_send_json_error(array('message' => __('请输入优惠券代码', 'woocommerce')), 400); } if (!isset(WC()->cart)) { wc_load_cart(); } $applied = WC()->cart->apply_coupon($code); WC()->cart->calculate_totals(); if (is_wp_error($applied)) { wp_send_json_error(array('message' => $applied->get_error_message()), 400); } if (!$applied) { wp_send_json_error(array('message' => __('优惠券应用失败', 'woocommerce')), 400); } wp_send_json_success(true); } /* ------------------------------------------------- * AJAX: 启动部分结算到常规结算页面 * ------------------------------------------------- */ add_action('wp_ajax_create_direct_order', 'pc_create_direct_order'); add_action('wp_ajax_nopriv_create_direct_order', 'pc_create_direct_order'); function pc_create_direct_order() { check_ajax_referer('woocommerce-cart', 'security'); $selected_keys = isset($_POST['selected_items']) ? (array) $_POST['selected_items'] : array(); if (empty($selected_keys)) { wp_send_json_error(array('message' => __('请选择要结算的商品', 'woocommerce')), 400); } if (!isset(WC()->cart)) { wc_load_cart(); } // 创建完整购物车快照 $snapshot = pc_snapshot_current_cart(); // 从当前购物车构建选中商品 $selected = array(); foreach (WC()->cart->get_cart() as $ci_key => $ci) { if (!in_array($ci_key, $selected_keys, true)) { continue; } $pid = (int)$ci['product_id']; $vid = (int)$ci['variation_id']; $qty = wc_stock_amount($ci['quantity']); $var = isset($ci['variation']) && is_array($ci['variation']) ? array_map('wc_clean', $ci['variation']) : array(); if ($pid && $qty > 0) { $selected[] = array( 'product_id' => $pid, 'variation_id' => $vid, 'variation' => $var, 'quantity' => $qty, ); } } if (empty($selected)) { wp_send_json_error(array('message' => __('没有可结算的商品', 'woocommerce')), 400); } $token = wp_generate_uuid4(); $payload = array( 'uid' => pc_get_cart_uid(), 'snapshot' => $snapshot, // 现在包含 items + coupons 'selected' => $selected, 'created' => time(), ); set_transient(pc_transient_key($token), $payload, 2 * DAY_IN_SECONDS); // 将会话令牌存入WooCommerce会话 if (isset(WC()->session) && method_exists(WC()->session, 'set')) { WC()->session->set('pc_partial_token', $token); } $checkout_url = add_query_arg('pc_token', rawurlencode($token), wc_get_checkout_url()); wp_send_json_success(array('checkout_url' => $checkout_url)); } /* ------------------------------------------------- * 结账时虚拟化购物车并在购买后重建 * ------------------------------------------------- */ // 加载结账页面时虚拟化购物车 add_action('woocommerce_before_checkout_form', function() { if (!isset($_GET['pc_token'])) return; $token = sanitize_text_field(wp_unslash($_GET['pc_token'])); $payload = get_transient(pc_transient_key($token)); if (empty($payload) || empty($payload['selected'])) return; if (!isset(WC()->cart)) { wc_load_cart(); } // 仅加载选中的商品 pc_restore_cart_from_items($payload['selected']); // 持久化令牌到会话 if (isset(WC()->session) && method_exists(WC()->session, 'set')) { WC()->session->set('pc_partial_token', $token); } }, 1); // 订单处理前确保虚拟化 add_action('woocommerce_before_checkout_process', function() { if (!isset(WC()->session) || !method_exists(WC()->session, 'get')) return; $token = WC()->session->get('pc_partial_token'); if (!$token) return; $payload = get_transient(pc_transient_key($token)); if (empty($payload) || empty($payload['selected'])) return; // 确保购物车仅包含选中商品 pc_restore_cart_from_items($payload['selected']); }, 1); // 为订单添加令牌标记 add_action('woocommerce_checkout_create_order', function($order) { $token = null; if (isset($_GET['pc_token'])) { $token = sanitize_text_field(wp_unslash($_GET['pc_token'])); } elseif (isset(WC()->session) && method_exists(WC()->session, 'get')) { $token = WC()->session->get('pc_partial_token'); } if ($token) { $order->update_meta_data('_pc_partial_token', $token); $order->update_meta_data('_pc_cart_snapshot', $token); } }, 10, 1); // 成功结账后仅移除已购买商品 add_action('woocommerce_thankyou', function($order_id) { $order = wc_get_order($order_id); if (!$order) return; $token = $order->get_meta('_pc_partial_token'); if (!$token) return; $payload = get_transient(pc_transient_key($token)); if (empty($payload) || empty($payload['snapshot'])) { if (isset(WC()->session) && method_exists(WC()->session, 'set')) { WC()->session->set('pc_partial_token', null); } delete_transient(pc_transient_key($token)); return; } // 1. 恢复完整快照 pc_restore_cart_from_items($payload['snapshot']['items']); pc_restore_cart_coupons($payload['snapshot']['coupons']); WC()->cart->calculate_totals(); // 2. 只移除已购买商品 $removed_count = 0; foreach ($payload['selected'] as $selected_item) { $cart_item_key = pc_find_cart_item($selected_item['product_id'], $selected_item['variation_id']); if ($cart_item_key) { WC()->cart->remove_cart_item($cart_item_key); $removed_count++; } } // 3. 如果有商品被移除才重新计算 if ($removed_count > 0) { WC()->cart->calculate_totals(); } // 清理令牌 if (isset(WC()->session) && method_exists(WC()->session, 'set')) { WC()->session->set('pc_partial_token', null); } delete_transient(pc_transient_key($token)); }, 20); // 辅助函数：通过产品和变体ID查找购物车项 function pc_find_cart_item($product_id, $variation_id = 0) { if (!isset(WC()->cart)) { wc_load_cart(); } foreach (WC()->cart->get_cart() as $cart_item_key => $cart_item) { $cart_pid = isset($cart_item['product_id']) ? (int)$cart_item['product_id'] : 0; $cart_vid = isset($cart_item['variation_id']) ? (int)$cart_item['variation_id'] : 0; if ($cart_pid == $product_id && $cart_vid == $variation_id) { return $cart_item_key; } } return false; } // 访问购物车页面时恢复完整快照（返回/取消操作） add_action('woocommerce_before_cart', function() { // 严格检查会话可用性 if (!isset(WC()->session) || !method_exists(WC()->session, 'get')) return; $token = WC()->session->get('pc_partial_token'); if (!$token) return; $payload = get_transient(pc_transient_key($token)); if (empty($payload) || empty($payload['snapshot'])) return; // 恢复完整快照 pc_restore_cart_from_items($payload['snapshot']['items']); pc_restore_cart_coupons($payload['snapshot']['coupons']); WC()->cart->calculate_totals(); }); /* ------------------------------------------------- * 保持购物车数量在结算过程中准确 * ------------------------------------------------- */ add_filter('woocommerce_cart_contents_count', function($count) { // 检查是否存在部分结算令牌 if (!isset(WC()->session) || !method_exists(WC()->session, 'get')) return $count; $token = WC()->session->get('pc_partial_token'); if (!$token) return $count; $payload = get_transient(pc_transient_key($token)); // 始终显示完整购物车数量 if (!empty($payload['snapshot']) && is_array($payload['snapshot']['items'])) { $snapshot_count = 0; foreach ($payload['snapshot']['items'] as $item) { $snapshot_count += (int)($item['quantity'] ?? 0); } return $snapshot_count; } return $count; }); // 确保购物车一致性 add_action('woocommerce_before_cart', 'pc_maintain_cart_consistency'); add_action('woocommerce_before_checkout_form', 'pc_maintain_cart_consistency'); function pc_maintain_cart_consistency() { if (!isset(WC()->session) || !method_exists(WC()->session, 'get')) return; $token = WC()->session->get('pc_partial_token'); if (!$token) return; $payload = get_transient(pc_transient_key($token)); if (empty($payload) || empty($payload['snapshot'])) return; // 立即恢复完整购物车以确保UI一致性 pc_restore_cart_from_items($payload['snapshot']['items']); pc_restore_cart_coupons($payload['snapshot']['coupons']); WC()->cart->calculate_totals(); } 目前有以下问题 1）当我按结算时，购物车内的所有商品都被送去结算了。我要的是只有被选中的商品会被送去结算，未被选中的商品会一直留在购物车中，直到顾客下单他们（并且已成功创建订单后，若还没创建订单则继续留在购物车中）。 2）已选商品: 1 件，共计: RM0.81 中的“共计”。当我选择一件商品，然后修改数量时，共计的价格没有改变，我要他直接反映出物品价格 * 已储存的数量（包括已设置好的dynamic discount）