修复 MySQL 数据库兼容性问题 - strftime 函数

backend/routes/tickets.js

@@ -5,7 +5,7 @@ const { v4: uuidv4 } = require('uuid');
 const { Ticket, TicketOperationRecord } = require('../models/ticketIndex');
 const Device = require('../models/Device');
 const User = require('../models/User');
-const { DB_TYPE } = require('../db');
+const { dbDialect } = require('../db');
 
 // 获取工单统计 (必须定义在 /:ticketId 之前)
 router.get('/stats', async (req, res) => {
@@ -51,7 +51,7 @@ router.get('/stats', async (req, res) => {
     const monthlyStats = await Ticket.findAll({
       where,
       attributes: [
-        [DB_TYPE === 'mysql' 
+        [dbDialect === 'mysql' 
           ? require('sequelize').fn('DATE_FORMAT', require('sequelize').col('createdAt'), '%Y-%m')
           : require('sequelize').fn('strftime', '%Y-%m', require('sequelize').col('createdAt')), 
           'month'],