알레르기 필터링 코드 추가 및 테스트

lunch/tests.py

@@ -1,19 +1,28 @@
-# from django.contrib.auth.models import User
 from django.urls import reverse
 from rest_framework import status
 from rest_framework.test import APITestCase
+from rest_framework_simplejwt.tokens import RefreshToken
 
+from common.models import Allergy
 from lunch.models import Lunch, LunchMenu
-from menus.models import Menu
 from menus.serializers import MenuWithDetailSerializer
 from users.models import User
 from utils.test_helper import create_menu
 
 
 class LunchAPITestCase(APITestCase):
     def setUp(self):
-        user = User.objects.create_user(username="testuser", email="test@naver.com", password="1234")
-        self.client.login(username="testuser", password="1234")
+        self.test_user = User.objects.create_user(
+            username="testuser", email="test@example.com", password="testpassword", status=2
+        )
+
+        refresh = RefreshToken.for_user(self.test_user)
+        self.token = str(refresh.access_token)
+        self.client.credentials(HTTP_AUTHORIZATION=f"Bearer {self.token}")
+        allergy_names = ["밀", "돼지고기"]
+        allergies = Allergy.objects.filter(name__in=allergy_names)
+
+        self.test_user.allergies.set(allergies)
 
         menu1 = create_menu(name="test_menu1")
         menu2 = create_menu(name="test_menu2")
@@ -101,7 +110,7 @@ def setUp(self):
 
         for i in range(1, 11):
             lunch = Lunch.objects.create(
-                store=user,
+                store=self.test_user,
                 name=f"test Lunch{i}",
                 description="test lunch set",
                 image_url="http://example.com/image.jpg",
@@ -178,5 +187,17 @@ def test_lunch_delete(self):
 
     def test_random_lunch_get(self):
         url = reverse("lunch-random")
-        res = self.client.get(url)
+
+        with self.assertNumQueries(4):
+            res = self.client.get(url)
+
+        self.assertEqual(res.status_code, status.HTTP_200_OK)
+
+    def test_random_lunch_with_allergy_get(self):
+        base_url = reverse("lunch-random")
+        url = f"{base_url}?allergy=true"
+
+        with self.assertNumQueries(4):
+            res = self.client.get(url)
+
         self.assertEqual(res.status_code, status.HTTP_200_OK)

lunch/views.py

@@ -1,7 +1,7 @@
 import random
 
+from django.db.models import Prefetch, Subquery
 from rest_framework import status
-from rest_framework.permissions import AllowAny, IsAuthenticated
 from rest_framework.request import Request
 from rest_framework.response import Response
 from rest_framework.views import APIView
@@ -80,8 +80,32 @@ def delete(self, request: Request, pk: int) -> Response:
 class LunchRandomList(APIView):
 
     def get(self, request: Request) -> Response:
-        random_lunch = Lunch.objects.order_by("?")[0:10]
-        serializer = LunchSerializer(random_lunch, many=True)
+        allergy = request.GET.get("allergy", "").lower()
+        lunch_queryset = Lunch.objects.all()
+
+        if allergy == "true":
+            if not request.user.is_authenticated:
+                return Response({"message": "로그인 된 유저가 아닙니다"}, status=status.HTTP_403_FORBIDDEN)
+
+            user_allergies = request.user.allergies.all()
+
+            allergen_menus = Menu.objects.filter(menu_details__allergy__in=user_allergies).values("id")
+
+            lunch_queryset = lunch_queryset.exclude(menus__in=Subquery(allergen_menus))
+
+        total_count = lunch_queryset.count()
+        if total_count <= 10:
+            lunch_queryset = lunch_queryset.all()
+        else:
+            random_ids = lunch_queryset.values_list("id", flat=True)
+            random_ids_list = list(random_ids)
+            random.shuffle(random_ids_list)
+            selected_ids = random_ids_list[:10]
+            lunch_queryset = Lunch.objects.filter(id__in=selected_ids)
+
+        lunch_prefetch = Prefetch("lunch_menu", queryset=LunchMenu.objects.select_related("menu"))
+        lunch_queryset = lunch_queryset.prefetch_related(lunch_prefetch)
+        serializer = LunchSerializer(lunch_queryset, many=True)
 
         return Response(
             serializer.data,

menus/tests.py

@@ -18,6 +18,10 @@ def setUp(self) -> None:
         refresh = RefreshToken.for_user(self.test_user)
         self.token = str(refresh.access_token)
         self.client.credentials(HTTP_AUTHORIZATION=f"Bearer {self.token}")
+        allergy_names = ["밀", "돼지고기"]
+        allergies = Allergy.objects.filter(name__in=allergy_names)
+
+        self.test_user.allergies.set(allergies)
 
         self.menu = create_menu(name="test_menu1")
         create_menu(name="test_menu2")
@@ -199,3 +203,12 @@ def test_create_menu(self) -> None:
         self.assertEqual(menu_details.count(), 2)
         self.assertEqual(menu_details.first().allergy.name, "메밀")
         self.assertIsNone(menu_details.last().allergy)
+
+    def test_get_allergy_menu_list(self):
+        base_url = reverse("menu-list")
+        url = f"{base_url}?category=chan&allergy=true"
+
+        with self.assertNumQueries(4):
+            response = self.client.get(url)
+
+        self.assertEqual(response.status_code, status.HTTP_200_OK)

menus/views.py

@@ -11,15 +11,21 @@
 class MenuList(APIView):
 
     def get(self, request: Request) -> Response:
-
         page = int(request.GET.get("page", "1"))
         size = int(request.GET.get("size", "10"))
         category = request.GET.get("category", "bob").lower()
-        allergies = request.GET.get("allergy", "").lower().split(",")
-        allergies = [allergy.strip() for allergy in allergies if allergy.strip()]
+        allergy = request.GET.get("allergy", "").lower()
         search = request.GET.get("search", "").lower()
         offset = (page - 1) * size
 
+        allergies: list[int] = []
+
+        if allergy == "true":
+            if not request.user.is_authenticated:
+                return Response({"message": "로그인 된 유저가 아닙니다"}, status=status.HTTP_403_FORBIDDEN)
+
+            allergies = [aller.id for aller in request.user.allergies.all()]
+
         if page < 1:
             return Response("page input error", status=status.HTTP_400_BAD_REQUEST)
 
@@ -30,7 +36,7 @@ def get(self, request: Request) -> Response:
 
         if allergies:
             menus = menus.annotate(
-                allergy_count=Count("menu_details__allergy", filter=Q(menu_details__allergy__name__in=allergies))
+                allergy_count=Count("menu_details__allergy", filter=Q(menu_details__allergy__id__in=allergies))
             ).filter(allergy_count=0)
 
         if search: