Merge pull request #129 from django-json-api/bugfix/duplicate-included-records

Accessing by index on Model.objects.all() produces weird behavior

Author: jsenecal

rest_framework_json_api/utils.py

@@ -366,7 +366,7 @@ def extract_relationships(fields, resource, resource_instance):
             relation_data = list()
 
             serializer_data = resource.get(field_name)
-            resource_instance_queryset = relation_instance_or_manager.all()
+            resource_instance_queryset = list(relation_instance_or_manager.all())
             if isinstance(serializer_data, list):
                 for position in range(len(serializer_data)):
                     nested_resource_instance = resource_instance_queryset[position]
@@ -438,7 +438,7 @@ def extract_included(fields, resource, resource_instance, included_resources):
             serializer = field.child
             model = serializer.Meta.model
             relation_type = format_relation_name(model.__name__)
-            relation_queryset = relation_instance_or_manager.all()
+            relation_queryset = list(relation_instance_or_manager.all())
 
             # Get the serializer fields
             serializer_fields = get_serializer_fields(serializer)