feat: ADRF async views (phase1) + native async serializers (phase2) + async cache infra

user/views/settings.py

@@ -1,7 +1,8 @@
 import json
-from rest_framework.views import APIView
+from adrf.views import APIView
 from rest_framework.permissions import IsAuthenticated
 from rest_framework.parsers import MultiPartParser, FormParser
+from asgiref.sync import sync_to_async
 from drf_yasg.utils import swagger_auto_schema
 from drf_yasg import openapi
 from user.models import UserDevice
@@ -25,7 +26,7 @@ class UploadCoverAPIView(APIView):
         ],
         responses={200: success_response, 400: '参数错误', 401: unauthorized_response},
     )
-    def post(self, request):
+    async def post(self, request):
         cover_file = request.FILES.get('cover')
         if not cover_file:
             return create_standardized_error_response(
@@ -49,12 +50,13 @@ class UploadCoverAPIView(APIView):
         user = request.user
         if user.cover_image:
             try:
-                user.cover_image.delete(save=False)
+                # FieldFile.delete 是同步存储 I/O，线程池兜底
+                await sync_to_async(user.cover_image.delete)(save=False)
             except Exception:
                 pass
 
         user.cover_image = cover_file
-        user.save(update_fields=['cover_image'])
+        await user.asave(update_fields=['cover_image'])
 
         return create_standardized_response(
             data={
@@ -73,7 +75,7 @@ class PrivacySettingsAPIView(APIView):
         operation_description='获取当前用户的隐私设置',
         responses={200: success_response, 401: unauthorized_response},
     )
-    def get(self, request):
+    async def get(self, request):
         user = request.user
         return create_standardized_response(
             data={
@@ -97,7 +99,7 @@ class PrivacySettingsAPIView(APIView):
         ),
         responses={200: success_response, 400: '参数错误', 401: unauthorized_response},
     )
-    def put(self, request):
+    async def put(self, request):
         user = request.user
         valid_choices = ['public', 'friends_only', 'private']
 
@@ -112,7 +114,7 @@ class PrivacySettingsAPIView(APIView):
                     )
                 setattr(user, field, value)
 
-        user.save(update_fields=fields)
+        await user.asave(update_fields=fields)
         return create_standardized_response(
             data={
                 'privacy_profile': user.privacy_profile,
@@ -132,7 +134,7 @@ class NotificationSettingsAPIView(APIView):
         operation_description='获取当前用户的消息通知偏好设置',
         responses={200: success_response, 401: unauthorized_response},
     )
-    def get(self, request):
+    async def get(self, request):
         user = request.user
         return create_standardized_response(
             data={
@@ -162,7 +164,7 @@ class NotificationSettingsAPIView(APIView):
         ),
         responses={200: success_response, 401: unauthorized_response},
     )
-    def put(self, request):
+    async def put(self, request):
         user = request.user
 
         fields = ['notify_email', 'notify_browser', 'notify_reply', 'notify_like', 'notify_follow', 'notify_system']
@@ -173,7 +175,7 @@ class NotificationSettingsAPIView(APIView):
                     value = str(value).lower() in ('true', '1', 'yes')
                 setattr(user, field, value)
 
-        user.save(update_fields=fields)
+        await user.asave(update_fields=fields)
         return create_standardized_response(
             data={
                 'notify_email': user.notify_email,
@@ -196,11 +198,11 @@ class UserDeviceListView(APIView):
         operation_description='获取当前用户的所有登录设备列表',
         responses={200: success_response, 401: unauthorized_response},
     )
-    def get(self, request):
+    async def get(self, request):
         user = request.user
         devices = UserDevice.objects.filter(user=user).order_by('-last_active')
         data = []
-        for d in devices:
+        async for d in devices:
             data.append({
                 'id': d.id,
                 'device_name': d.device_name,
@@ -228,9 +230,9 @@ class UserDeviceRemoveView(APIView):
         ],
         responses={200: success_response, 404: '设备不存在', 401: unauthorized_response},
     )
-    def delete(self, request, pk):
+    async def delete(self, request, pk):
         user = request.user
-        device = UserDevice.objects.filter(user=user, pk=pk).first()
+        device = await UserDevice.objects.filter(user=user, pk=pk).afirst()
         if not device:
             return create_standardized_error_response(
                 code=40401,
@@ -241,7 +243,7 @@ class UserDeviceRemoveView(APIView):
                 code=40001,
                 message='不能移除当前设备'
             )
-        device.delete()
+        await device.adelete()
         return create_standardized_response(data={'message': '设备已移除'})
 
 
@@ -254,7 +256,7 @@ class UserDeviceClearOthersView(APIView):
         operation_description='移除除当前设备外的所有其他登录设备',
         responses={200: success_response, 401: unauthorized_response},
     )
-    def post(self, request):
+    async def post(self, request):
         user = request.user
-        count, _ = UserDevice.objects.filter(user=user).exclude(is_current=True).delete()
+        count, _ = await UserDevice.objects.filter(user=user).exclude(is_current=True).adelete()
         return create_standardized_response(data={'message': f'已移除 {count} 个设备', 'removed_count': count})