School Meal API

apps/meal/migrations/0001_initial.py

@@ -1,4 +1,4 @@
-# Generated by Django 4.2.23 on 2025-11-06 15:35
+# Generated by Django 4.2.23 on 2025-11-22 17:30
 
 import datetime
 from django.db import migrations, models
@@ -24,8 +24,7 @@ class Migration(migrations.Migration):
                 ('menu_name', models.TextField(verbose_name='메뉴명')),
                 ('price', models.IntegerField(blank=True, null=True, verbose_name='가격')),
                 ('date', models.DateField(verbose_name='날짜')),
-                ('day', models.CharField(max_length=16, verbose_name='요일')),
-                ('time', models.CharField(max_length=16, verbose_name='시간대(조식/중식/석식)')),
+                ('meal_time', models.CharField(choices=[('BREAKFAST', 'BREAKFAST'), ('LUNCH', 'LUNCH'), ('DINNER', 'DINNER')], max_length=10, null=True, verbose_name='식사 시간대')),
             ],
             options={
                 'ordering': ('-created_at',),
@@ -39,11 +38,10 @@ class Migration(migrations.Migration):
                 ('created_at', models.DateTimeField(db_index=True, default=django.utils.timezone.now, verbose_name='생성 시간')),
                 ('updated_at', models.DateTimeField(auto_now=True, db_index=True, verbose_name='수정 시간')),
                 ('deleted_at', models.DateTimeField(db_index=True, default=datetime.datetime(1, 1, 1, 0, 0, tzinfo=datetime.timezone.utc), verbose_name='삭제 시간')),
-                ('restaurant_name', models.CharField(max_length=32, verbose_name='식당 이름')),
+                ('course_name', models.CharField(max_length=32, verbose_name='코스 이름')),
                 ('price', models.PositiveIntegerField(blank=True, null=True, verbose_name='가격')),
                 ('date', models.DateField(verbose_name='날짜')),
-                ('day', models.CharField(max_length=16, verbose_name='요일')),
-                ('time', models.CharField(max_length=16, verbose_name='시간대(조식/중식/석식)')),
+                ('meal_time', models.CharField(choices=[('BREAKFAST', 'BREAKFAST'), ('LUNCH', 'LUNCH'), ('DINNER', 'DINNER')], max_length=10, null=True, verbose_name='식사 시간대')),
             ],
             options={
                 'ordering': ('-created_at',),
@@ -65,6 +63,20 @@ class Migration(migrations.Migration):
                 'abstract': False,
             },
         ),
+        migrations.CreateModel(
+            name='Restaurant',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created_at', models.DateTimeField(db_index=True, default=django.utils.timezone.now, verbose_name='생성 시간')),
+                ('updated_at', models.DateTimeField(auto_now=True, db_index=True, verbose_name='수정 시간')),
+                ('deleted_at', models.DateTimeField(db_index=True, default=datetime.datetime(1, 1, 1, 0, 0, tzinfo=datetime.timezone.utc), verbose_name='삭제 시간')),
+                ('restaurant_name', models.CharField(max_length=32, unique=True, verbose_name='식당 이름')),
+            ],
+            options={
+                'ordering': ('-created_at',),
+                'abstract': False,
+            },
+        ),
         migrations.CreateModel(
             name='MenuAllergy',
             fields=[
@@ -73,12 +85,22 @@ class Migration(migrations.Migration):
                 ('updated_at', models.DateTimeField(auto_now=True, db_index=True, verbose_name='수정 시간')),
                 ('deleted_at', models.DateTimeField(db_index=True, default=datetime.datetime(1, 1, 1, 0, 0, tzinfo=datetime.timezone.utc), verbose_name='삭제 시간')),
                 ('allergen_code', models.PositiveIntegerField(blank=True, null=True, verbose_name='알러지 번호')),
-                ('cafeteria_menu_id', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='allergy_set', to='meal.cafeteriamenu', verbose_name='카페테리아 메뉴')),
-                ('menu_id', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='allergy_set', to='meal.menu', verbose_name='일반 메뉴')),
+                ('cafeteria_menu_id', models.ForeignKey(null=True, on_delete=django.db.models.deletion.CASCADE, related_name='allergy_set', to='meal.cafeteriamenu', verbose_name='카페테리아 메뉴')),
+                ('menu_id', models.ForeignKey(null=True, on_delete=django.db.models.deletion.CASCADE, related_name='allergy_set', to='meal.menu', verbose_name='일반 메뉴')),
             ],
             options={
                 'ordering': ('-created_at',),
                 'abstract': False,
             },
         ),
+        migrations.AddField(
+            model_name='course',
+            name='restaurant_id',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='courses', to='meal.restaurant', verbose_name='식당 이름'),
+        ),
+        migrations.AddField(
+            model_name='cafeteriamenu',
+            name='restaurant_id',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='cafeteria_menus', to='meal.restaurant', verbose_name='식당 이름'),
+        ),
     ]

apps/meal/models/__init__.py

@@ -1,4 +1,5 @@
+from .restaurant import Restaurant
+from .course import Course
 from .cafeteria_menu import CafeteriaMenu, MealType
-from .course import Course, MealType
-from .menu_allergy import MenuAllergy
-from .menu import Menu
+from .menu import Menu
+from .menu_allergy import MenuAllergy

apps/meal/models/cafeteria_menu.py

@@ -9,6 +9,13 @@ class MealType(str, Enum):
     DINNER = "DINNER" # 석식
 
 class CafeteriaMenu(MetaDataModel):
+    restaurant_id = models.ForeignKey(
+        to="meal.Restaurant",
+        on_delete=models.CASCADE,
+        related_name="cafeteria_menus",
+        verbose_name="식당 이름",
+        db_index=True,
+    )
     menu_name = models.TextField(
         verbose_name="메뉴명",
     )

apps/meal/models/course.py

@@ -8,16 +8,18 @@ class MealType(str, Enum):
     LUNCH = "LUNCH" # 중식
     DINNER = "DINNER" # 석식
 
-class Course(MetaDataModel):
-    class MealType(models.IntegerChoices):
-        BREAKFAST = 0, "조식"
-        LUNCH = 1, "중식"
-        DINNER = 2, "석식"
-
-    restaurant_name = models.CharField(
+class Course(MetaDataModel):  
+    restaurant_id = models.ForeignKey(
+        to="meal.Restaurant",
+        on_delete=models.CASCADE,
+        related_name="courses",
         verbose_name="식당 이름",
-        max_length=32,
+        db_index=True,
     )
+    course_name = models.CharField(
+        verbose_name="코스 이름",
+        max_length=32,
+    )    
     price = models.PositiveIntegerField(
         verbose_name="가격",
         blank=True,

apps/meal/models/restaurant.py

@@ -0,0 +1,12 @@
+from django.db import models
+from ara.db.models import MetaDataModel
+
+class Restaurant(MetaDataModel):
+    restaurant_name = models.CharField(
+        verbose_name="식당 이름",
+        max_length=32,
+        unique=True,
+    )
+
+    def __str__(self):
+        return self.restaurant_name

apps/meal/serializers/meal_serializers.py

@@ -0,0 +1,38 @@
+from rest_framework import serializers
+from ..models import Course, Menu, CafeteriaMenu
+
+class BaseMenuSerializer(serializers.ModelSerializer):
+    """알러지 코드 추출 및 경고 플래그 표시 여부 확인"""
+    allergy_codes = serializers.SerializerMethodField()
+    has_user_allergy = serializers.SerializerMethodField() 
+
+    def get_allergy_codes(self, obj):
+        return list(obj.allergy_set.values_list('allergen_code', flat=True))
+
+    def get_has_user_allergy(self, obj):
+        user_allergies = self.context.get('user_allergies', [])
+        if not user_allergies:
+            return False
+        menu_allergies = set(obj.allergy_set.values_list('allergen_code', flat=True))
+        return bool(menu_allergies.intersection(set(user_allergies)))
+
+class MenuSerializer(BaseMenuSerializer):
+    class Meta:
+        model = Menu
+        fields = ('menu_name', 'allergy_codes', 'has_user_allergy')
+
+class CafeteriaMenuSerializer(BaseMenuSerializer):
+    class Meta:
+        model = CafeteriaMenu
+        fields = ('menu_name', 'price', 'allergy_codes', 'has_user_allergy')
+
+class CourseSerializer(serializers.ModelSerializer):
+    menus = MenuSerializer(source='filtered_menus', many=True, read_only=True)
+
+    class Meta:
+        model = Course
+        fields = ('course_name', 'price', 'menus')
+
+class DailyMealResponseSerializer(serializers.Serializer):
+    courses = CourseSerializer(many=True)
+    cafeteria_menus = CafeteriaMenuSerializer(many=True)

apps/meal/urls.py

@@ -0,0 +1,6 @@
+from django.urls import path, include
+from .views.router import router
+
+urlpatterns = [
+    path("", include(router.urls)),
+]

apps/meal/views/meal_viewset.py

@@ -0,0 +1,54 @@
+from rest_framework import viewsets, status
+from rest_framework.response import Response
+from django.db.models import Prefetch
+from datetime import date as date_type
+from ..models import Course, Menu, CafeteriaMenu
+from ..serializers.meal_serializers import CourseSerializer, CafeteriaMenuSerializer
+
+class MealViewSet(viewsets.ViewSet):
+
+    def list(self, request):
+        date_str = request.query_params.get('date') 
+        restaurant_name = request.query_params.get('restaurant_name')
+        meal_time = request.query_params.get('meal_time')
+
+        if not all([date_str, restaurant_name, meal_time]):
+            return Response({'error': 'Missing parameters'}, status=status.HTTP_400_BAD_REQUEST)
+        try:
+            query_date = date_type(int(date_str[:4]), int(date_str[4:6]), int(date_str[6:]))
+        except (ValueError, TypeError):
+             return Response({'error': 'Invalid date'}, status=status.HTTP_400_BAD_REQUEST)
+
+        """알러지 필터 context 생성"""
+        raw_codes = request.query_params.get('allergy_codes', '')
+        user_allergies = [int(c.strip()) for c in raw_codes.split(',') if c.strip()]
+        context = {'user_allergies': user_allergies}
+
+        """일반 코스 메뉴 조회"""
+        all_menus_qs = Menu.objects.all().prefetch_related('allergy_set')
+
+        course_queryset = Course.objects.filter(
+            restaurant_id__restaurant_name=restaurant_name, 
+            date=query_date,
+            meal_time=meal_time
+        ).prefetch_related(
+            Prefetch('menu_set', queryset=all_menus_qs, to_attr='filtered_menus') 
+        )
+
+        course_serializer = CourseSerializer(course_queryset, many=True, context=context)
+
+        """카페테리아 메뉴 조회"""
+        cafeteria_queryset = CafeteriaMenu.objects.filter(
+            restaurant_id__restaurant_name=restaurant_name,
+            date=query_date,
+            meal_time=meal_time,
+        ).prefetch_related('allergy_set')
+
+        cafeteria_serializer = CafeteriaMenuSerializer(cafeteria_queryset, many=True, context=context)
+
+
+        return Response({
+            'restaurant': restaurant_name,
+            'courses': course_serializer.data,
+            'cafeteria_menus': cafeteria_serializer.data,
+        }, status=status.HTTP_200_OK)

apps/meal/views/router.py

@@ -0,0 +1,10 @@
+from rest_framework import routers
+from apps.meal.views import meal_viewset
+
+router = routers.DefaultRouter()
+
+router.register(
+    prefix=r"",
+    viewset=meal_viewset.MealViewSet,
+    basename="meal",
+)