Merge pull request #3701 from Cheglader/master

Fix #3628 by implementing __getnewargs__()

rest_framework/relations.py

@@ -32,6 +32,9 @@ class Hyperlink(six.text_type):
         ret.name = name
         return ret
 
+    def __getnewargs__(self):
+        return(str(self), self.name,)
+
     is_hyperlink = True
 
 

tests/test_relations.py

@@ -206,3 +206,14 @@ class TestManyRelatedField(APISimpleTestCase):
 
         mvd = MultiValueDict({'baz': ['bar1', 'bar2']})
         assert empty == self.field.get_value(mvd)
+
+
+class TestHyperlink:
+    def setup(self):
+        self.default_hyperlink = serializers.Hyperlink('http://example.com', 'test')
+
+    def test_can_be_pickled(self):
+        import pickle
+        upkled = pickle.loads(pickle.dumps(self.default_hyperlink))
+        assert upkled == self.default_hyperlink
+        assert upkled.name == self.default_hyperlink.name