在Opencart 2.x中将更新的产品价格推送到过去的订单

Question

试图将新产品价格推高至过去的订单。 本质上，当我编辑产品价格时，它需要在所有包含该价格的订单中进行更新，这是代码：

public function editProduct($product_id, $data) {
    $this->event->trigger('pre.admin.product.edit', $data);

    $this->db->query("UPDATE " . DB_PREFIX . "product SET model = '" . $this->db->escape($data['model']) . "', sku = '" . $this->db->escape($data['sku']) . "', upc = '" . $this->db->escape($data['upc']) . "', ean = '" . $this->db->escape($data['ean']) . "', jan = '" . $this->db->escape($data['jan']) . "', isbn = '" . $this->db->escape($data['isbn']) . "', mpn = '" . $this->db->escape($data['mpn']) . "', location = '" . $this->db->escape($data['location']) . "', quantity = '" . (int)$data['quantity'] . "', minimum = '" . (int)$data['minimum'] . "', subtract = '" . (int)$data['subtract'] . "', stock_status_id = '" . (int)$data['stock_status_id'] . "', date_available = '" . $this->db->escape($data['date_available']) . "', manufacturer_id = '" . (int)$data['manufacturer_id'] . "', shipping = '" . (int)$data['shipping'] . "', price = '" . (float)$data['price'] . "', points = '" . (int)$data['points'] . "', weight = '" . (float)$data['weight'] . "', weight_class_id = '" . (int)$data['weight_class_id'] . "', length = '" . (float)$data['length'] . "', width = '" . (float)$data['width'] . "', height = '" . (float)$data['height'] . "', length_class_id = '" . (int)$data['length_class_id'] . "', status = '" . (int)$data['status'] . "', tax_class_id = '" . (int)$data['tax_class_id'] . "', sort_order = '" . (int)$data['sort_order'] . "', date_modified = NOW() WHERE product_id = '" . (int)$product_id . "'");

//Push Product Edits //
    $product_qry = $this->db->query("SELECT price FROM " . DB_PREFIX . "product WHERE product_id = '" . (int)$product_id . "'");
    $new_price = $product_qry->row['price'];

    $order_product_id_qry = $this->db->query("SELECT order_product_id FROM " . DB_PREFIX . "order_product");
    $order_product_id = $order_product_id_qry->row['order_product_id'];

    $order_qry = $this->db->query("SELECT quantity FROM " . DB_PREFIX . "order_product WHERE order_product_id = '" . (int)$order_product_id . "'");
    $product_quantity = $order_qry->row['quantity'];

    $new_total = $product_quantity * $new_price;

    $this->db->query("UPDATE " . DB_PREFIX . "order_product SET price = '" . $new_price . "' WHERE product_id = '" . (int)$product_id ."'");
    $this->db->query("UPDATE " . DB_PREFIX . "order_product SET total = '" . $new_total . "' WHERE order_product_id = '" . (int)$order_product_id . "'");

更新价格非常有效。 我不再收到错误，但订单总数未更新。 知道为什么吗？

Answer 1

我在数据库上添加了MYSQL触发器

CREATE TRIGGER `after_product_update` AFTER UPDATE ON `oc_product` FOR EACH ROW
BEGIN
    UPDATE `order_product`
    SET `price` = NEW.`price`, `total` = `quantity` * NEW.`price` WHERE `product_id` = NEW.`product_id`;
END

请注意，必须在表oc_order_total中添加其他触发器，以便在那里更新“小计”和“总计”字段。