From d64be3f079e33b196f1dccf7df957ef7bf9ee2a1 Mon Sep 17 00:00:00 2001
From: Don Spaulding <donspauldingii@gmail.com>
Date: Fri, 21 Jun 2013 12:53:34 -0500
Subject: [PATCH] Use the url_field_name from get_identity() as well.

---
 rest_framework/serializers.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rest_framework/serializers.py b/rest_framework/serializers.py
index b58e64319..d2ddac287 100644
--- a/rest_framework/serializers.py
+++ b/rest_framework/serializers.py
@@ -950,7 +950,7 @@ class HyperlinkedModelSerializer(ModelSerializer):
         We need to override the default, to use the url as the identity.
         """
         try:
-            return data.get('url', None)
+            return data.get(self.opts.url_field_name, None)
         except AttributeError:
             return None