Mixin for Django Rest Framework View/Viewsets to use different response data/serializers without unnecessary hacks.

mixins.py

class UnsafeResponseSerializerMixin(object):
	"""
	Apply this mixin to any view or viewset to automatically use a different response
	serializer on POST, PUT or PATCH requests.
	
	Override 'get_response_data' method to return back the desired data, or 
	'get_response' method to also provide additional changs to the returned Response.
	"""

	def get_response_data(self, request):
		pass

	def get_response(self, request, response):
		data = self.get_response_data(request)
		if data:
			response.data = data
		return response

	def __init__(self, **kwargs):
		super(UnsafeResponseSerializerMixin, self).__init__(**kwargs)
		if hasattr(self, 'post'):
			self.post = self._post
		if hasattr(self, 'put'):
			self.put = self._put
		if hasattr(self, 'patch'):
			self.patch = self._patch

	def _post(self, request, *args, **kwargs):
		response = super(UnsafeResponseSerializerMixin, self).post(request, *args, **kwargs)
		return self.get_response(request, response)

	def _put(self, request, *args, **kwargs):
		response = super(UnsafeResponseSerializerMixin, self).put(request, *args, **kwargs)
		return self.get_response(request, response)

	def _patch(self, request, *args, **kwargs):
		response = super(UnsafeResponseSerializerMixin, self).patch(request, *args, **kwargs)
		return self.get_response(request, response)