update_delete_user_logic

app/services/user_service.py

@@ -3,7 +3,7 @@
 from app.models.user import User, Role, db
 from sqlalchemy import or_
 from datetime import datetime
-
+from sqlalchemy import text
 
 class UserService:
     @staticmethod
@@ -111,27 +111,21 @@ class UserService:
             return False, "用户不存在"
 
         try:
-            # 检查是否有未归还的图书
+            # 检查是否有未归还的图书 - 使用SQLAlchemy的text函数
             active_borrows_count = db.session.execute(
-                "SELECT COUNT(*) FROM borrow_records WHERE user_id = :user_id AND return_date IS NULL",
+                text("SELECT COUNT(*) FROM borrow_records WHERE user_id = :user_id AND return_date IS NULL"),
                 {"user_id": user_id}
             ).scalar()
 
             if active_borrows_count > 0:
                 return False, f"无法删除：该用户还有 {active_borrows_count} 本未归还的图书"
 
-            # 删除用户相关的通知记录
+            # 删除用户相关的通知记录 - 使用SQLAlchemy的text函数
             db.session.execute(
-                "DELETE FROM notifications WHERE user_id = :user_id OR sender_id = :user_id",
+                text("DELETE FROM notifications WHERE user_id = :user_id OR sender_id = :user_id"),
                 {"user_id": user_id}
             )
 
-            # 删除用户相关的日志记录（可选，取决于是否需要保留审计记录）
-            # db.session.execute(
-            #     "DELETE FROM logs WHERE user_id = :user_id",
-            #     {"user_id": user_id}
-            # )
-
             # 物理删除用户
             db.session.delete(user)
             db.session.commit()