Add special exclusion for FileUploadParser

Fixes #288

testproj/articles/views.py

@@ -7,7 +7,7 @@ from rest_framework import viewsets
 # noinspection PyDeprecation
 from rest_framework.filters import OrderingFilter
 from rest_framework.pagination import LimitOffsetPagination
-from rest_framework.parsers import MultiPartParser
+from rest_framework.parsers import MultiPartParser, FileUploadParser
 from rest_framework.response import Response
 
 from articles import serializers
@@ -118,7 +118,7 @@ class ArticleViewSet(viewsets.ModelViewSet):
         type=openapi.TYPE_INTEGER,
         description="this should not crash (form parameter on DELETE method)"
     )])
-    @detail_route(methods=['get', 'post', 'delete'], parser_classes=(MultiPartParser,))
+    @detail_route(methods=['get', 'post', 'delete'], parser_classes=(MultiPartParser, FileUploadParser))
     def image(self, request, slug=None):
         """
         image method docstring

testproj/snippets/views.py

@@ -2,7 +2,7 @@ from djangorestframework_camel_case.parser import CamelCaseJSONParser
 from djangorestframework_camel_case.render import CamelCaseJSONRenderer
 from inflection import camelize
 from rest_framework import generics, status
-from rest_framework.parsers import FormParser
+from rest_framework.parsers import FormParser, FileUploadParser
 
 from drf_yasg import openapi
 from drf_yasg.inspectors import SwaggerAutoSchema
@@ -22,7 +22,7 @@ class SnippetList(generics.ListCreateAPIView):
     queryset = Snippet.objects.all()
     serializer_class = SnippetSerializer
 
-    parser_classes = (FormParser, CamelCaseJSONParser,)
+    parser_classes = (FormParser, CamelCaseJSONParser, FileUploadParser)
     renderer_classes = (CamelCaseJSONRenderer,)
     swagger_schema = CamelCaseOperationIDAutoSchema