后台仪表盘重新设计---待测试

api/controllers/adminController.ts

@@ -1,5 +1,6 @@
 import { Request, Response } from 'express';
 import { SystemConfigModel } from '../models';
+import { query } from '../database';
 
 export class AdminController {
   // 管理员登录
@@ -126,6 +127,149 @@ export class AdminController {
     }
   }
 
+  static async getUserStats(req: Request, res: Response) {
+    try {
+      const rows = await query(
+        `
+        SELECT 
+          u.id as userId,
+          u.name as userName,
+          COUNT(qr.id) as totalRecords,
+          COALESCE(ROUND(AVG(qr.total_score), 2), 0) as averageScore,
+          COALESCE(MAX(qr.total_score), 0) as highestScore,
+          COALESCE(MIN(qr.total_score), 0) as lowestScore
+        FROM users u
+        LEFT JOIN quiz_records qr ON u.id = qr.user_id
+        GROUP BY u.id
+        ORDER BY totalRecords DESC, u.created_at DESC
+        `,
+      );
+
+      const data = (rows as any[]).map((row) => ({
+        userId: row.userId,
+        userName: row.userName,
+        totalRecords: Number(row.totalRecords) || 0,
+        averageScore: Number(row.averageScore) || 0,
+        highestScore: Number(row.highestScore) || 0,
+        lowestScore: Number(row.lowestScore) || 0,
+      }));
+
+      res.json({
+        success: true,
+        data,
+      });
+    } catch (error: any) {
+      console.error('获取用户统计失败:', error);
+      res.status(500).json({
+        success: false,
+        message: error.message || '获取用户统计失败',
+      });
+    }
+  }
+
+  static async getSubjectStats(req: Request, res: Response) {
+    try {
+      const rows = await query(
+        `
+        SELECT 
+          s.id as subjectId,
+          s.name as subjectName,
+          COUNT(qr.id) as totalRecords,
+          COALESCE(ROUND(AVG(qr.total_score), 2), 0) as averageScore,
+          COALESCE(ROUND(AVG(
+            CASE 
+              WHEN qr.total_count > 0 THEN (qr.correct_count * 100.0 / qr.total_count)
+              ELSE 0
+            END
+          ), 2), 0) as averageCorrectRate
+        FROM exam_subjects s
+        LEFT JOIN quiz_records qr ON s.id = qr.subject_id
+        GROUP BY s.id
+        ORDER BY totalRecords DESC, s.created_at DESC
+        `,
+      );
+
+      const data = (rows as any[]).map((row) => ({
+        subjectId: row.subjectId,
+        subjectName: row.subjectName,
+        totalRecords: Number(row.totalRecords) || 0,
+        averageScore: Number(row.averageScore) || 0,
+        averageCorrectRate: Number(row.averageCorrectRate) || 0,
+      }));
+
+      res.json({
+        success: true,
+        data,
+      });
+    } catch (error: any) {
+      console.error('获取科目统计失败:', error);
+      res.status(500).json({
+        success: false,
+        message: error.message || '获取科目统计失败',
+      });
+    }
+  }
+
+  static async getTaskStats(req: Request, res: Response) {
+    try {
+      const rows = await query(
+        `
+        SELECT 
+          t.id as taskId,
+          t.name as taskName,
+          COALESCE(rs.totalRecords, 0) as totalRecords,
+          COALESCE(rs.averageScore, 0) as averageScore,
+          COALESCE(us.totalUsers, 0) as totalUsers,
+          COALESCE(rs.completedUsers, 0) as completedUsers
+        FROM exam_tasks t
+        LEFT JOIN (
+          SELECT 
+            task_id,
+            COUNT(*) as totalRecords,
+            ROUND(AVG(total_score), 2) as averageScore,
+            COUNT(DISTINCT user_id) as completedUsers
+          FROM quiz_records
+          WHERE task_id IS NOT NULL
+          GROUP BY task_id
+        ) rs ON rs.task_id = t.id
+        LEFT JOIN (
+          SELECT 
+            task_id,
+            COUNT(DISTINCT user_id) as totalUsers
+          FROM exam_task_users
+          GROUP BY task_id
+        ) us ON us.task_id = t.id
+        ORDER BY t.created_at DESC
+        `,
+      );
+
+      const data = rows.map((row: any) => {
+        const totalUsers = Number(row.totalUsers) || 0;
+        const completedUsers = Number(row.completedUsers) || 0;
+        const completionRate = totalUsers > 0 ? (completedUsers / totalUsers) * 100 : 0;
+
+        return {
+          taskId: row.taskId,
+          taskName: row.taskName,
+          totalRecords: Number(row.totalRecords) || 0,
+          averageScore: Number(row.averageScore) || 0,
+          completionRate,
+        };
+      });
+
+      res.json({
+        success: true,
+        data,
+      });
+    } catch (error: any) {
+      console.error('获取任务统计失败:', error);
+      res.status(500).json({
+        success: false,
+        message: error.message || '获取任务统计失败',
+      });
+    }
+  }
+
   // 修改管理员密码
   static async updatePassword(req: Request, res: Response) {
     try {
@@ -180,4 +324,4 @@ export class AdminController {
       });
     }
   }
-}
+}

api/server.ts

@@ -103,6 +103,9 @@ apiRouter.get('/quiz/records', adminAuth, QuizController.getAllRecords);
 // 管理员相关
 apiRouter.post('/admin/login', AdminController.login);
 apiRouter.get('/admin/statistics', adminAuth, AdminController.getStatistics);
+apiRouter.get('/admin/statistics/users', adminAuth, AdminController.getUserStats);
+apiRouter.get('/admin/statistics/subjects', adminAuth, AdminController.getSubjectStats);
+apiRouter.get('/admin/statistics/tasks', adminAuth, AdminController.getTaskStats);
 apiRouter.get('/admin/active-tasks', adminAuth, AdminController.getActiveTasksStats);
 apiRouter.put('/admin/config', adminAuth, AdminController.updateQuizConfig);
 apiRouter.get('/admin/config', adminAuth, AdminController.getQuizConfig);
@@ -154,4 +157,4 @@ async function startServer() {
 
 // 启动服务器
 // 重启触发
-startServer();
+startServer();