✨ Feat: [#88] 24시간 내 조회수 중복 방지

nocodetools/services.py

@@ -7,6 +7,11 @@ from portfolios.models import Portfolio
 from projects.serializers import ProjectNocodetoolSerializer
 from portfolios.serializers import PortfolioNocodetoolSerializer
 
+from django.utils import timezone
+from django.db.models import F
+
+from django_redis import get_redis_connection
+
 NOCODETOOL_MODEL_MAP = {
             'project': Project,
             'portfolio': Portfolio,
@@ -27,3 +32,26 @@ class NocodetoolObjectMapService:
     
     def mapping_model_serializer(related_type: str):
         return NOCODETOOL_SERIALIZER_MAP.get(related_type, None)
+
+
+class NocodetoolHitService:
+    def hit_once(obj, request, ttl=60*60*24):
+        user_key = request.user.id if request.user.is_authenticated else request.session.session_key
+
+        if not user_key:
+            request.session.save()
+            user_key = request.session.session_key()
+
+        today = timezone.localdate().isoformat()
+        key = f"viewed:obj:{obj.id}:{today}"
+
+        redis_conn = get_redis_connection("default")
+
+        added = redis_conn.sadd(key, user_key)
+        if added:
+            if redis_conn.ttl(key) == -1:
+                redis_conn.expire(key, ttl)
+
+            obj.__class__.objects.filter(id=obj.id).update(view_count=F("view_count") + 1)
+            return True
+        return False