Restframework read and non read sequence processing

Use restframework When , If the front-end of the web page is only simple get If you ask , Some fields of our custom methods will be involved , If you submit on this page, an error will be reported , So the sequence can distinguish these requirements , Design two serializations ,get Request serialization and put,patch,delete,post serialize
serializers.py

class BookReadSerializer(serializers.ModelSerializer):
    category = CategorySerializer()
    author = AuthorSerializer()
    class Meta:
        model = Book
        fields = '__all__'

class BookWriteSerializer(serializers.ModelSerializer):
    class Meta:
        model = Book
        fields = "__all__"

views.py

class BookViewSet(viewsets.ModelViewSet):
    queryset = Book.objects.all()

    def get_serializer_class(self):
        if self.request.method in ['GET', 'HEAD']:
            return BookReadSerializer
        else:
            return BookWriteSerializer

Directly separate , Different request methods call different sequences