瞪眼法测试通过

routes/customers.js

@@ -14,7 +14,7 @@ function pagination(query) {
 async function list(req, res) {
   try {
     const { page, pageSize, offset } = pagination(req.query)
-    const { name, phone, province, city } = req.query
+    const { name, phone, province, city, id } = req.query
 
     let where = 'WHERE 1=1'
     const params = []
@@ -29,32 +29,40 @@ async function list(req, res) {
       params.push(...scope.values)
     }
 
+    if (id) {
+      where += ' AND c.id = ?'
+      params.push(id)
+    }
     if (name) {
-      where += ' AND name LIKE ?'
+      where += ' AND c.name LIKE ?'
       params.push(`%${name}%`)
     }
     if (phone) {
-      where += ' AND phone LIKE ?'
+      where += ' AND c.phone LIKE ?'
       params.push(`%${phone}%`)
     }
     if (province) {
-      where += ' AND province = ?'
+      where += ' AND c.province = ?'
       params.push(province)
     }
     if (city) {
-      where += ' AND city = ?'
+      where += ' AND c.city = ?'
       params.push(city)
     }
 
     // 查总数
     const [[{ total }]] = await pool.query(
-      `SELECT COUNT(*) AS total FROM customers ${where}`,
+      `SELECT COUNT(*) AS total FROM customers c ${where}`,
       params
     )
 
-    // 查分页数据
+    // 查分页数据（JOIN users+employees 获取负责人姓名）
     const [rows] = await pool.query(
-      `SELECT * FROM customers ${where} ORDER BY id DESC LIMIT ? OFFSET ?`,
+      `SELECT c.*, e.name AS responsible_user_name
+       FROM customers c
+         LEFT JOIN users u ON c.responsible_user_id = u.id
+         LEFT JOIN employees e ON u.employee_id = e.id
+       ${where} ORDER BY c.id DESC LIMIT ? OFFSET ?`,
       [...params, pageSize, offset]
     )
 
@@ -201,6 +209,9 @@ async function remove(req, res) {
     res.json({ code: 0, message: 'ok' })
   } catch (e) {
     console.error('[customers delete] error:', e)
+    if (e.code === 'ER_ROW_IS_REFERENCED_2') {
+      return res.status(400).json({ code: 400, message: '该客户被合同或售后记录引用，无法删除' })
+    }
     res.status(500).json({ code: 500, message: e.message })
   }
 }