Django Rest Framework: Disable field update after object is created

Question

I\'m trying to make my User model RESTful via Django Rest Framework API calls, so that I can create users as well as update their profiles.

However, as I go through

Answer 1

If you don't want to create another serializer, you may want to try customizing get_serializer_class() inside MyViewSet. This has been useful to me for simple projects.

# Your clean serializer
class MySerializer(serializers.ModelSerializer):
    class Meta:
        model = MyModel
        fields = '__all__'

# Your hardworking viewset
class MyViewSet(MyParentViewSet):
    serializer_class = MySerializer
    model = MyModel

    def get_serializer_class(self):
        serializer_class = self.serializer_class
        if self.request.method in ['PUT', 'PATCH']:
            # setting `exclude` while having `fields` raises an error
            # so set `read_only_fields` if request is PUT/PATCH
            setattr(serializer_class.Meta, 'read_only_fields', ('non_updatable_field',))
            # set serializer_class here instead if you have another serializer for finer control
        return serializer_class

setattr(object, name, value)

This is the counterpart of getattr(). The arguments are an object, a string and an arbitrary value. The string may name an existing attribute or a new attribute. The function assigns the value to the attribute, provided the object allows it. For example, setattr(x, 'foobar', 123) is equivalent to x.foobar = 123.