refactor(billing): Enhance TopupSerializer to include detailed user information and update ListCreateTopupView queryset filtering 🔨

billing/serializers.py

@@ -1,7 +1,6 @@
 from rest_framework import serializers
 from .models import Payment, Topup
 from devices.serializers import DeviceSerializer
-from api.serializers import CustomReadOnlyUserSerializer
 
 
 class PaymentSerializer(serializers.ModelSerializer):
@@ -21,7 +20,18 @@ class UpdatePaymentSerializer(serializers.ModelSerializer):
 
 
 class TopupSerializer(serializers.ModelSerializer):
-    user = CustomReadOnlyUserSerializer(read_only=True)
+    user = serializers.SerializerMethodField()
+
+    def get_user(self, obj):
+        user = obj.user
+        if user:
+            return {
+                "id": user.id,
+                "name": user.first_name + " " + user.last_name,
+                "id_card": user.id_card,
+                "mobile": user.mobile,
+            }
+        return None
 
     class Meta:  # type: ignore
         model = Topup