Merge pull request #61 from django-json-api/drf-3.2-compat

Fix for deprecation of `request.QUERY_PARAMS` in DRF 3.2`

Author: jerel

rest_framework_json_api/mixins.py

@@ -10,7 +10,10 @@ def get_queryset(self):
         """
         Override :meth:``get_queryset``
         """
-        ids = dict(self.request.QUERY_PARAMS).get('ids[]')
+        if hasattr(self.request, 'query_params'):
+            ids = dict(self.request.query_params).get('ids[]')
+        else:
+            ids = dict(self.request.QUERY_PARAMS).get('ids[]')
         if ids:
             self.queryset = self.queryset.filter(id__in=ids)
         return self.queryset