test of in cart quantity

backend/product/serializers.py

@@ -65,7 +65,12 @@ class ProductVariantSerialzier(serializers.ModelSerializer):
         request = self.context.get('request')
         if not request or not request.user.is_authenticated:
             return 0
-        return 1
+        cart_items = self.context.get('cart_items', [])
+        if cart_items:
+            for item in cart_items:
+                if item['product']['id'] == obj.id:
+                    return item['quantity']
+        return 0
 
 
 

backend/product/views.py

@@ -10,7 +10,7 @@ from rest_framework.permissions import IsAuthenticatedOrReadOnly
 from utils.pagination import StructurePagination
 from drf_spectacular.utils import extend_schema, OpenApiParameter, OpenApiTypes
 from rest_framework.permissions import AllowAny
-
+from order.serializers import OrderItemSerailzier
 
 # class APIView(APIView):
 #     def __init__(self, *args, **kwargs):
@@ -54,7 +54,10 @@ class ProductView(APIView):
     # authentication_classes = []
     def get(self, request, pk):
         product = get_object_or_404(ProductModel, id=pk)
-        product_ser = self.serializer_class(instance=product, many=False, context={'request': request, 'view_type': 'instance'})
+        cart_obj, _ = OrderModel.objects.get_or_create(user=request.user, status='CART')
+        cart_items = cart_obj.items.all()
+        cart_items_ser = OrderItemSerailzier(cart_items, many=True)
+        product_ser = self.serializer_class(instance=product, many=False, context={'request': request, 'view_type': 'instance', 'cart_items': cart_items_ser.data})
         return Response(product_ser.data, status=status.HTTP_200_OK)