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

user/views/favorites.py

@@ -1,4 +1,4 @@
-from rest_framework.views import APIView
+from adrf.views import APIView
 from rest_framework.permissions import IsAuthenticated
 from rest_framework import status
 
@@ -24,7 +24,7 @@ class MyFavoritesView(APIView):
         ],
         responses={200: success_response, 401: unauthorized_response},
     )
-    def get(self, request):
+    async def get(self, request):
         content_type = request.query_params.get('type', 'all')
         results = []
 
@@ -32,7 +32,7 @@ class MyFavoritesView(APIView):
             tool_favs = ToolFavorite.objects.filter(
                 user=request.user
             ).select_related('tool', 'tool__category').order_by('-created_at')
-            for tf in tool_favs:
+            async for tf in tool_favs:
                 results.append({
                     'id': tf.tool.id,
                     'type': 'tool',
@@ -49,7 +49,7 @@ class MyFavoritesView(APIView):
             article_favs = ArticleFavorite.objects.filter(
                 user=request.user
             ).select_related('article', 'article__author').order_by('-created_at')
-            for af in article_favs:
+            async for af in article_favs:
                 results.append({
                     'id': af.article.id,
                     'type': 'article',
@@ -69,7 +69,7 @@ class MyFavoritesView(APIView):
             course_favs = CourseFavorite.objects.filter(
                 user=request.user
             ).select_related('course', 'course__author').order_by('-created_at')
-            for cf in course_favs:
+            async for cf in course_favs:
                 results.append({
                     'id': cf.course.id,
                     'type': 'course',
@@ -79,7 +79,7 @@ class MyFavoritesView(APIView):
                     'level': cf.course.level,
                     'icon_name': getattr(cf.course, 'icon_name', ''),
                     'color': getattr(cf.course, 'color', ''),
-                    'chapters_count': cf.course.chapters.count() if hasattr(cf.course, 'chapters') else 0,
+                    'chapters_count': await cf.course.chapters.acount() if hasattr(cf.course, 'chapters') else 0,
                     'author': getattr(cf.course.author, 'nickname', '') if cf.course.author else '',
                     'author_id': cf.course.author_id,
                     'created_at': cf.created_at.strftime('%Y-%m-%d %H:%M:%S'),
@@ -89,7 +89,7 @@ class MyFavoritesView(APIView):
             api_favs = ApiFavorite.objects.filter(
                 user=request.user
             ).select_related('api_item').order_by('-created_at')
-            for af in api_favs:
+            async for af in api_favs:
                 results.append({
                     'id': af.api_item.id,
                     'type': 'api',
@@ -104,10 +104,10 @@ class MyFavoritesView(APIView):
 
         counts = {
             'total': len(results),
-            'tool': ToolFavorite.objects.filter(user=request.user).count(),
-            'article': ArticleFavorite.objects.filter(user=request.user).count(),
-            'course': CourseFavorite.objects.filter(user=request.user).count(),
-            'api': ApiFavorite.objects.filter(user=request.user).count(),
+            'tool': await ToolFavorite.objects.filter(user=request.user).acount(),
+            'article': await ArticleFavorite.objects.filter(user=request.user).acount(),
+            'course': await CourseFavorite.objects.filter(user=request.user).acount(),
+            'api': await ApiFavorite.objects.filter(user=request.user).acount(),
         }
 
         return create_standardized_response(