Merge pull request #563 from Logimeter/schema-description

Include filter fields' help text as coreapi descriptions

django_filters/rest_framework/backends.py

@@ -2,6 +2,7 @@
 from __future__ import absolute_import
 
 from django.template import Template, TemplateDoesNotExist, loader
+from django.utils import six
 from rest_framework.compat import template_render
 from rest_framework.filters import BaseFilterBackend
 
@@ -98,6 +99,7 @@ class DjangoFilterBackend(BaseFilterBackend):
         filter_class = self.get_filter_class(view, view.get_queryset())
 
         return [] if not filter_class else [
-            compat.coreapi.Field(name=field_name, required=False, location='query')
-            for field_name in filter_class().filters.keys()
+            compat.coreapi.Field(
+                name=field_name, required=False, location='query', description=six.text_type(field.field.help_text))
+            for field_name, field in filter_class().filters.items()
         ]