我正在对一个 opencart 项目进行更新。我们创建将应用回扣的优惠券。它包含在结帐页面中。我们正在从管理员端添加此优惠券详细信息，例如优惠券代码、折扣、到期日期等。但在用户端没有任何反应。输入优惠券代码时没有任何反应。没有降价，我们也没有收到任何错误消息。
【问题讨论】：
按照约翰的回答...在catalog/model/total/coupon.php我换掉了
// If discount greater than total
if ($discount_total > $total) {
$discount_total = $total;
}
为：
// If discount greater than total
if ($coupon_info['type'] == 'F' && $discount_total > $subtotal) {
$discount_total = $subtotal;
}
希望没有人需要调试这个！！！
【讨论】：
刚刚遇到类似的问题，优惠券申请成功但没有折扣。
发现问题是由于订单总排序的方式，“小计”需要在“优惠券”之前。
感觉在没有任何代码的情况下发布答案是错误的，所以这里是我进行调试的地方：catalog/model/total/coupon.php
$total 为 0，因此折扣正在重置。
public function getTotal(&$total_data, &$total, &$taxes) {
if (isset($this->session->data['coupon'])) {
$this->load->language('total/coupon');
$this->load->model('checkout/coupon');
$coupon_info = $this->model_checkout_coupon->getCoupon($this->session->data['coupon']);
if ($coupon_info) {
$discount_total = 0;
if (!$coupon_info['product']) {
$sub_total = $this->cart->getSubTotal();
} else {
$sub_total = 0;
foreach ($this->cart->getProducts() as $product) {
if (in_array($product['product_id'], $coupon_info['product'])) {
$sub_total += $product['total'];
}
}
}
if ($coupon_info['type'] == 'F') {
$coupon_info['discount'] = min($coupon_info['discount'], $sub_total);
}
foreach ($this->cart->getProducts() as $product) {
$discount = 0;
if (!$coupon_info['product']) {
$status = true;
} else {
if (in_array($product['product_id'], $coupon_info['product'])) {
$status = true;
} else {
$status = false;
}
}
if ($status) {
if ($coupon_info['type'] == 'F') {
$discount = $coupon_info['discount'] * ($product['total'] / $sub_total);
} elseif ($coupon_info['type'] == 'P') {
$discount = $product['total'] / 100 * $coupon_info['discount'];
}
if ($product['tax_class_id']) {
$tax_rates = $this->tax->getRates($product['total'] - ($product['total'] - $discount), $product['tax_class_id']);
foreach ($tax_rates as $tax_rate) {
if ($tax_rate['type'] == 'P') {
$taxes[$tax_rate['tax_rate_id']] -= $tax_rate['amount'];
}
}
}
}
$discount_total += $discount;
}
if ($coupon_info['shipping'] && isset($this->session->data['shipping_method'])) {
if (!empty($this->session->data['shipping_method']['tax_class_id'])) {
$tax_rates = $this->tax->getRates($this->session->data['shipping_method']['cost'], $this->session->data['shipping_method']['tax_class_id']);
foreach ($tax_rates as $tax_rate) {
if ($tax_rate['type'] == 'P') {
$taxes[$tax_rate['tax_rate_id']] -= $tax_rate['amount'];
}
}
}
$discount_total += $this->session->data['shipping_method']['cost'];
}
// If discount greater than total
if ($discount_total > $total) {
$discount_total = $total;
}
$total_data[] = array(
'code' => 'coupon',
'title' => sprintf($this->language->get('text_coupon'), $this->session->data['coupon']),
'value' => -$discount_total,
'sort_order' => $this->config->get('coupon_sort_order')
);
$total -= $discount_total;
}
}
}
【讨论】：
优惠券的正常工作方式确实会使它们无效。原因是日期有点尴尬。您需要将开始日期设置为要使用它的前一天，结束日期设置为后一天。我知道这很奇怪，但这就是它的工作方式，所以请确保日期对优惠券有效
【讨论】：
扩展杰的答案...
如果是日期问题，是因为OpenCart希望优惠券大于/小于（不等于）日期
打开/catalog/model/checkout/coupon.php
第一个函数应该是getCoupon
找到这一行：
$coupon_query = $this->db->query("SELECT * FROM " . DB_PREFIX . "coupon WHERE code = '" . $this->db->escape($code) . "' AND ((date_start = '0000-00-00' OR date_start < NOW()) AND (date_end = '0000-00-00' OR date_end > NOW())) AND status = '1'");
将 date_start
和 date_end
导致：
$coupon_query = $this->db->query("SELECT * FROM " . DB_PREFIX . "coupon WHERE code = '" . $this->db->escape($code) . "' AND ((date_start = '0000-00-00' OR date_start <= NOW()) AND (date_end = '0000-00-00' OR date_end >= NOW())) AND status = '1'");
【讨论】：