Django Rest Framework - How to Handle Nested Serializer Validation Errors Gracefully?
I've been working on this all day and I'm refactoring my project and I'm stuck trying to I recently switched to After trying multiple solutions online, I still can't figure this out....... I'm working on a Django project using Django Rest Framework (DRF) 3.13, and I'm currently implementing nested serializers for a model structure where I have a `Book` model that has a ForeignKey relationship to an `Author` model. The scenario arises when I'm trying to validate the nested `AuthorSerializer`. If the `Author` data is invalid, I want to return a clean behavior response that includes both the `Book` and `Author` errors separately. However, the default behavior just raises a `ValidationError` that doesn't provide a clear distinction. I've tried overriding the `create()` method in my viewset but I'm still struggling with how to extract and format these validation errors properly. Here's what I've tried so far: ```python from rest_framework import serializers, viewsets class AuthorSerializer(serializers.ModelSerializer): class Meta: model = Author fields = ['id', 'name'] def validate_name(self, value): if not value: raise serializers.ValidationError('Author name want to be empty.') return value class BookSerializer(serializers.ModelSerializer): author = AuthorSerializer() class Meta: model = Book fields = ['id', 'title', 'author'] class BookViewSet(viewsets.ModelViewSet): queryset = Book.objects.all() serializer_class = BookSerializer def create(self, request, *args, **kwargs): serializer = self.get_serializer(data=request.data) serializer.is_valid(raise_exception=True) self.perform_create(serializer) return Response(serializer.data, status=status.HTTP_201_CREATED) ``` In the current setup, if the `Author` data is invalid, it raises an behavior, but I want to catch those errors and format them such that the response contains a clear distinction between `Book` and `Author` validation errors. Can someone guide me on how to achieve this? I've also read about using `serializers.ValidationError` for custom behavior messages, but I am not sure how to structure the response effectively. Any help would be appreciated! This is part of a larger web app I'm building. What am I doing wrong? This is my first time working with Python latest. Thanks for your help in advance! I'm working with Python in a Docker container on Ubuntu 20.04. Thanks, I really appreciate it! I've been using Python for about a year now. Thanks for your help in advance!