From ef7a41ba014874bc2b9923b18fff47c86bd32d43 Mon Sep 17 00:00:00 2001
From: yuliang_guo <anonymous@qq.com>
Date: Fri, 30 Jan 2026 15:11:57 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BF=AE=E5=A4=8D=20SQLAlchemy=20case()?=
 =?UTF-8?q?=20=E8=AF=AD=E6=B3=95?=
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- admin.py: 使用 case() 替代 func.case()
- task_service.py: 同上
- 已在服务器执行数据库迁移创建 user_course_progress 表
---
 backend/app/api/v1/admin.py          | 4 ++--
 backend/app/services/task_service.py | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/backend/app/api/v1/admin.py b/backend/app/api/v1/admin.py
index bc037a6..f7ce13c 100644
--- a/backend/app/api/v1/admin.py
+++ b/backend/app/api/v1/admin.py
@@ -6,7 +6,7 @@ from typing import Optional, List, Dict, Any
 from datetime import datetime, timedelta
 from fastapi import APIRouter, Depends, Query
 from sqlalchemy.ext.asyncio import AsyncSession
-from sqlalchemy import select, func
+from sqlalchemy import select, func, case
 
 from app.core.deps import get_current_active_user as get_current_user, get_db
 from app.models.user import User
@@ -216,7 +216,7 @@ async def get_course_completion_data(
             select(
                 func.count(UserCourseProgress.id).label('total'),
                 func.sum(
-                    func.case(
+                    case(
                         (UserCourseProgress.status == ProgressStatus.COMPLETED.value, 1),
                         else_=0
                     )
diff --git a/backend/app/services/task_service.py b/backend/app/services/task_service.py
index f6b30dc..6e6aa61 100644
--- a/backend/app/services/task_service.py
+++ b/backend/app/services/task_service.py
@@ -3,7 +3,7 @@
 """
 from typing import List, Optional
 from datetime import datetime
-from sqlalchemy import select, func, and_
+from sqlalchemy import select, func, and_, case
 from sqlalchemy.ext.asyncio import AsyncSession
 from sqlalchemy.orm import joinedload
 from app.models.task import Task, TaskCourse, TaskAssignment, TaskStatus, AssignmentStatus
@@ -154,7 +154,7 @@ class TaskService(BaseService[Task]):
         stmt = select(
             func.count(TaskAssignment.id).label('total'),
             func.sum(
-                func.case(
+                case(
                     (TaskAssignment.status == AssignmentStatus.COMPLETED, 1),
                     else_=0
                 )