Use related_objects api for Django 1.9+

Author: andreif

rest_framework/utils/model_meta.py

@@ -8,6 +8,7 @@
 import inspect
 from collections import OrderedDict, namedtuple
 
+import django
 from django.apps import apps
 from django.core.exceptions import ImproperlyConfigured
 from django.db import models
@@ -134,7 +135,12 @@ def _get_reverse_relationships(opts):
     # See: https://code.djangoproject.com/ticket/24208
 
     reverse_relations = OrderedDict()
-    for relation in opts.get_all_related_objects():
+
+    if django.VERSION < (1, 9):
+        rels = opts.get_all_related_objects()
+    else:
+        rels = [r for r in opts.related_objects if not r.field.many_to_many]
+    for relation in rels:
         accessor_name = relation.get_accessor_name()
         related = getattr(relation, 'related_model', relation.model)
         reverse_relations[accessor_name] = RelationInfo(
@@ -146,7 +152,11 @@ def _get_reverse_relationships(opts):
         )
 
     # Deal with reverse many-to-many relationships.
-    for relation in opts.get_all_related_many_to_many_objects():
+    if django.VERSION < (1, 9):
+        rels = opts.get_all_related_many_to_many_objects()
+    else:
+        rels = [r for r in opts.related_objects if r.field.many_to_many]
+    for relation in rels:
         accessor_name = relation.get_accessor_name()
         related = getattr(relation, 'related_model', relation.model)
         reverse_relations[accessor_name] = RelationInfo(