Refactor CreatePaymentView to improve device retrieval logic by using filter instead of get_object_or_404, enhancing error handling for non-existent devices.

billing/views.py

@@ -1,17 +1,16 @@
 # Create your views here.
 # billing/views.py
-from django.shortcuts import get_object_or_404
-from .models import Payment, Device
 from datetime import datetime, timedelta
+
 import requests
-from rest_framework.views import APIView
-from rest_framework.response import Response
-from rest_framework import status
 from decouple import config
-from .serializers import PaymentSerializer
+from rest_framework import generics, status
-from rest_framework.permissions import AllowAny
+from rest_framework.response import Response
+
 from api.mixins import StaffEditorPermissionMixin
-from rest_framework import generics
+
+from .models import Device, Payment
+from .serializers import PaymentSerializer
 
 
 class InsufficientFundsError(Exception):
@@ -31,7 +30,8 @@ class CreatePaymentView(StaffEditorPermissionMixin, generics.CreateAPIView):
         print(amount, number_of_months, device_ids)
 
         for device_id in device_ids:
-            device = get_object_or_404(Device, id=device_id)
+            device = Device.objects.filter(id=device_id, user=user).first()
+            print("DEVICE", device)
             if not device:
                 return Response(
                     {"message": f"Device with id {device_id} not found."},