fix(phase4.2): 复用现有 qr_data 字段存储短码|payload

设计调整：
- 复用现有 qr_data 字段，无需改数据库
- qr_data 格式：短码|payload（竖线分隔）
- short_code: BaseService::shortCodeEncode(goods_id, ticket_id)
- payload: BaseService::signQrPayload(id/g/iat/exp)

方法更新：
- getQrData(): 从 qr_data 解析短码和 payload，支持15分钟自动刷新
- verifyByShortCode(): 短码解码 → DB查询 → verifyTicketById()

无需数据库字段变更！

shopxo/app/plugins/vr_ticket/install.sql

@@ -20,8 +20,7 @@ CREATE TABLE IF NOT EXISTS `{{prefix}}vr_tickets` (
     `goods_snapshot` TEXT            DEFAULT NULL           COMMENT '商品快照JSON',
     `user_id`        BIGINT UNSIGNED NOT NULL               COMMENT '用户ID',
     `ticket_code`    CHAR(36)        NOT NULL              COMMENT 'UUID票码',
-    `short_code`     VARCHAR(16)     DEFAULT NULL          COMMENT '短码（Feistel混淆）',
+    `qr_data`        TEXT            DEFAULT NULL           COMMENT '加密QR内容',
-    `qr_payload`     TEXT            DEFAULT NULL           COMMENT 'QR签名payload（Base64）',
     `seat_info`      VARCHAR(255)    DEFAULT NULL          COMMENT '座位信息',
     `spec_base_id`   BIGINT UNSIGNED DEFAULT 0              COMMENT 'spec_base_id',
     `real_name`      VARCHAR(60)     DEFAULT NULL          COMMENT '观演人姓名',
@@ -35,7 +34,6 @@ CREATE TABLE IF NOT EXISTS `{{prefix}}vr_tickets` (
     `updated_at`     INT UNSIGNED     DEFAULT 0             COMMENT '更新时间',
     PRIMARY KEY (`id`),
     UNIQUE KEY `uk_ticket_code` (`ticket_code`),
-    UNIQUE KEY `uk_short_code` (`short_code`),
     KEY `idx_order_id` (`order_id`),
     KEY `idx_user_id` (`user_id`),
     KEY `idx_goods_id` (`goods_id`),

shopxo/app/plugins/vr_ticket/service/TicketService.php

@@ -128,9 +128,9 @@ class TicketService extends BaseService
         }
 
         $ticket_code = BaseService::generateUuid();
+        $now = BaseService::now();
 
         // Step 1: 先插入获取 ticket_id（用于 short_code 生成）
-        $now = BaseService::now();
         $ticket_id = \think\facade\Db::name(BaseService::table('tickets'))->insertGetId([
             'order_id'       => $order['id'],
             'order_no'       => $order['order_no'],
@@ -142,6 +142,7 @@ class TicketService extends BaseService
             ], JSON_UNESCAPED_UNICODE),
             'user_id'        => $order['user_id'],
             'ticket_code'    => $ticket_code,
+            'qr_data'        => '',  // 占位，生成后更新
             'seat_info'      => $spec_name,
             'spec_base_id'   => $spec_base_id,
             'real_name'      => '',
@@ -159,6 +160,7 @@ class TicketService extends BaseService
         }
 
         // Step 2: 生成短码（goods_id 明文 + ticket_id 混淆）
+        // 短码存储在 qr_data 中，供前端展示
         $short_code = BaseService::shortCodeEncode($order['goods_id'], $ticket_id);
 
         // Step 3: 生成 QR payload（HMAC-SHA256 签名，30分钟有效）
@@ -169,13 +171,13 @@ class TicketService extends BaseService
             'exp'  => $now + 1800, // 30分钟
         ]);
 
-        // Step 4: 更新 short_code 和 qr_payload
+        // qr_data 格式：短码|QR_payload（竖线分隔）
+        $qr_data = $short_code . '|' . $qr_payload;
+
+        // Step 4: 更新 qr_data
         \think\facade\Db::name(BaseService::table('tickets'))
             ->where('id', $ticket_id)
-            ->update([
+            ->update(['qr_data' => $qr_data]);
-                'short_code' => $short_code,
-                'qr_payload' => $qr_payload,
-            ]);
 
         // Step 5: 写入观演人信息
         $extension_data = json_decode($order['extension_data'] ?? '{}', true);
@@ -449,13 +451,15 @@ class TicketService extends BaseService
     }
 
     /**
-     * 获取票的 QR payload（带动态刷新）
+     * 获取票的 QR 数据（短码 + payload）
+     *
+     * qr_data 格式：短码|payload
      *
      * @param int $ticket_id 票ID
      * @param int $user_id 用户ID（校验归属）
      * @return array [code, data]
      */
-    public static function getQrPayload($ticket_id, $user_id)
+    public static function getQrData($ticket_id, $user_id)
     {
         $ticket = \think\facade\Db::name(BaseService::table('tickets'))
             ->where('id', $ticket_id)
@@ -476,19 +480,26 @@ class TicketService extends BaseService
             return ['code' => -3, 'msg' => '该票已退款'];
         }
 
+        $qr_data = $ticket['qr_data'] ?? '';
+        if (empty($qr_data) || strpos($qr_data, '|') === false) {
+            return ['code' => -4, 'msg' => 'QR数据异常'];
+        }
+
+        [$short_code, $payload] = explode('|', $qr_data, 2);
+
         // 检查是否需要刷新 QR（剩余有效期 < 15分钟）
-        $qr_payload = $ticket['qr_payload'];
+        if (!empty($payload)) {
-        if (!empty($qr_payload)) {
+            $decoded = BaseService::verifyQrPayload($payload);
-            $decoded = BaseService::verifyQrPayload($qr_payload);
             if ($decoded !== null && $decoded['exp'] - time() > 900) {
                 // 有效期 > 15分钟，返回缓存
                 return [
                     'code' => 0,
                     'msg'  => 'success',
                     'data' => [
-                        'payload'    => $qr_payload,
+                        'short_code'  => $short_code,
-                        'cached'    => true,
+                        'payload'     => $payload,
-                        'expires_in'=> $decoded['exp'] - time(),
+                        'cached'      => true,
+                        'expires_in'  => $decoded['exp'] - time(),
                     ],
                 ];
             }
@@ -504,17 +515,19 @@ class TicketService extends BaseService
         ]);
 
         // 更新缓存
+        $new_qr_data = $short_code . '|' . $new_payload;
         \think\facade\Db::name(BaseService::table('tickets'))
             ->where('id', $ticket_id)
-            ->update(['qr_payload' => $new_payload, 'updated_at' => $now]);
+            ->update(['qr_data' => $new_qr_data, 'updated_at' => $now]);
 
         return [
             'code' => 0,
             'msg'  => 'success',
             'data' => [
-                'payload'    => $new_payload,
+                'short_code'  => $short_code,
-                'cached'    => false,
+                'payload'     => $new_payload,
-                'expires_in'=> 1800,
+                'cached'      => false,
+                'expires_in'  => 1800,
             ],
         ];
     }