added support for multiple @action and @link decorators on a viewset, along with a router testcase illustrating the failure against the master code base

rest_framework/routers.py

@@ -127,18 +127,18 @@ class SimpleRouter(BaseRouter):
         """
 
         # Determine any `@action` or `@link` decorated methods on the viewset
-        dynamic_routes = {}
+        dynamic_routes = []
         for methodname in dir(viewset):
             attr = getattr(viewset, methodname)
             httpmethod = getattr(attr, 'bind_to_method', None)
             if httpmethod:
-                dynamic_routes[httpmethod] = methodname
+                dynamic_routes.append((httpmethod, methodname))
 
         ret = []
         for route in self.routes:
             if route.mapping == {'{httpmethod}': '{methodname}'}:
                 # Dynamic routes (@link or @action decorator)
-                for httpmethod, methodname in dynamic_routes.items():
+                for httpmethod, methodname in dynamic_routes:
                     initkwargs = route.initkwargs.copy()
                     initkwargs.update(getattr(viewset, methodname).kwargs)
                     ret.append(Route(

rest_framework/tests/routers.py

@@ -0,0 +1,46 @@
+from __future__ import unicode_literals
+from django.test import TestCase
+from django.test.client import RequestFactory
+from rest_framework import status
+from rest_framework.response import Response
+from rest_framework import viewsets
+from rest_framework.decorators import link, action
+from rest_framework.routers import SimpleRouter
+import copy
+
+factory = RequestFactory()
+
+
+class BasicViewSet(viewsets.ViewSet):
+    def list(self, request, *args, **kwargs):
+        return Response({'method': 'list'})
+
+    @action()
+    def action1(self, request, *args, **kwargs):
+        return Response({'method': 'action1'})
+
+    @action()
+    def action2(self, request, *args, **kwargs):
+        return Response({'method': 'action2'})
+
+    @link()
+    def link1(self, request, *args, **kwargs):
+        return Response({'method': 'link1'})
+
+    @link()
+    def link2(self, request, *args, **kwargs):
+        return Response({'method': 'link2'})
+
+
+class TestSimpleRouter(TestCase):
+    def setUp(self):
+        self.router = SimpleRouter()
+
+    def test_link_and_action_decorator(self):
+        routes = self.router.get_routes(BasicViewSet)
+        # Should be 2 by default, and then four from the @action and @link combined
+        #self.assertEqual(len(routes), 6)
+        #
+        decorator_routes = routes[2:]
+        for i, method in enumerate(['action1', 'action2', 'link1', 'link2']):
+            self.assertEqual(decorator_routes[i].mapping.values()[0], method)