Make 'results_field' attribute of BasePaginationSerializer public.

docs/api-guide/pagination.md

@@ -104,7 +104,9 @@ For more complex requirements such as serialization that differs depending on th
 
 To create a custom pagination serializer class you should override `pagination.BasePaginationSerializer` and set the fields that you want the serializer to return.
 
-For example, to nest a pair of links labelled 'prev' and 'next' you might use something like this.
+You can also override the name used for the object list field, by setting the `results_field` attribute, which defaults to `'results'`.
+
+For example, to nest a pair of links labelled 'prev' and 'next', and set the name for the results field to 'objects', you might use something like this.
 
     class LinksSerializer(serializers.Serializer):
         next = pagination.NextURLField(source='*')
@@ -114,4 +116,6 @@ For example, to nest a pair of links labelled 'prev' and 'next' you might use so
         links = LinksSerializer(source='*')  # Takes the page object as the source
         total_results = serializers.Field(source='paginator.count')
 
+        results_field = 'objects'
+
 [cite]: https://docs.djangoproject.com/en/dev/topics/pagination/

rest_framework/pagination.py

@@ -52,14 +52,14 @@ class BasePaginationSerializer(serializers.Serializer):
     to make implementing custom serializers more easy.
     """
     _options_class = PaginationSerializerOptions
-    _results_field = 'results'
+    results_field = 'results'
 
     def __init__(self, *args, **kwargs):
         """
         Override init to add in the object serializer field on-the-fly.
         """
         super(BasePaginationSerializer, self).__init__(*args, **kwargs)
-        results_field = self._results_field
+        results_field = self.results_field
         object_serializer = self.opts.object_serializer_class
         self.fields[results_field] = object_serializer(source='object_list')