Add suffix support for actions

Removes the newly introduced `action.name` in favor of leveraging the
View's `.get_view_name()` method, which supports both name and suffix.

rest_framework/decorators.py

@@ -131,7 +131,7 @@ def schema(view_inspector):
     return decorator
 
 
-def action(methods=None, detail=None, name=None, url_path=None, url_name=None, **kwargs):
+def action(methods=None, detail=None, url_path=None, url_name=None, **kwargs):
     """
     Mark a ViewSet method as a routable action.
 
@@ -145,18 +145,22 @@ def action(methods=None, detail=None, name=None, url_path=None, url_name=None, *
         "@action() missing required argument: 'detail'"
     )
 
+    # name and suffix are mutually exclusive
+    if 'name' in kwargs and 'suffix' in kwargs:
+        raise TypeError("`name` and `suffix` are mutually exclusive arguments.")
+
     def decorator(func):
         func.mapping = MethodMapper(func, methods)
 
         func.detail = detail
-        func.name = name if name else pretty_name(func.__name__)
         func.url_path = url_path if url_path else func.__name__
         func.url_name = url_name if url_name else func.__name__.replace('_', '-')
         func.kwargs = kwargs
-        func.kwargs.update({
-            'name': func.name,
-            'description': func.__doc__ or None
-        })
+
+        # Set descriptive arguments for viewsets
+        if 'name' not in kwargs and 'suffix' not in kwargs:
+            func.kwargs['name'] = pretty_name(func.__name__)
+        func.kwargs['description'] = func.__doc__ or None
 
         return func
     return decorator

rest_framework/viewsets.py

@@ -183,7 +183,8 @@ class ViewSetMixin(object):
             try:
                 url_name = '%s-%s' % (self.basename, action.url_name)
                 url = reverse(url_name, self.args, self.kwargs, request=self.request)
-                action_urls[action.name] = url
+                view = self.__class__(**action.kwargs)
+                action_urls[view.get_view_name()] = url
             except NoReverseMatch:
                 pass  # URL requires additional arguments, ignore
 

tests/test_decorators.py

@@ -179,7 +179,6 @@ class ActionDecoratorTestCase(TestCase):
 
         assert test_action.mapping == {'get': 'test_action'}
         assert test_action.detail is True
-        assert test_action.name == 'Test action'
         assert test_action.url_path == 'test_action'
         assert test_action.url_name == 'test-action'
         assert test_action.kwargs == {
@@ -223,7 +222,7 @@ class ActionDecoratorTestCase(TestCase):
             raise NotImplementedError
 
         # The secondary handler methods should not have the action attributes
-        for name in ['mapping', 'detail', 'name', 'url_path', 'url_name', 'kwargs']:
+        for name in ['mapping', 'detail', 'url_path', 'url_name', 'kwargs']:
             assert hasattr(test_action, name) and not hasattr(test_action_post, name)
 
     def test_method_mapping_already_mapped(self):