Merge pull request encode#2 from nschlemm/issue-192-expose-fields-for-options

Issue 192 expose fields for options

Author: grimborg

rest_framework/tests/generics.py

@@ -125,25 +125,25 @@ def test_options_root_view(self):
             'actions': {}
         }
         # TODO: this is just a draft for fields' metadata - needs review and decision
-        for method in ('GET', 'POST',):
-            expected['actions'][method] = {
-                'text': {
-                    # TODO add help_text and label when they are available
-                    #'help_text': '',
-                    #'label': None,
-                    'read_only': False,
-                    'required': True,
-                    'type': 'Single Character',
-                },
-                'id': {
-                    # TODO add help_text and label when they are available
-                    #'help_text': '',
-                    #'label': None,
-                    'read_only': True,
-                    'required': False,
-                    'type': 'Integer',
-                },
-            }
+        expected['actions']['GET'] = {}
+        expected['actions']['POST'] = {
+            'text': {
+                # TODO add help_text and label when they are available
+                #'help_text': '',
+                #'label': None,
+                'read_only': False,
+                'required': True,
+                'type': 'Single Character',
+            },
+            'id': {
+                # TODO add help_text and label when they are available
+                #'help_text': '',
+                #'label': None,
+                'read_only': True,
+                'required': False,
+                'type': 'Integer',
+            },
+        }
         self.assertEqual(response.status_code, status.HTTP_200_OK)
         self.assertEqual(response.data, expected)
 
@@ -263,7 +263,9 @@ def test_options_instance_view(self):
             'actions': {}
         }
         # TODO: this is just a draft idea for fields' metadata - needs review and decision
-        for method in ('GET', 'PATCH', 'PUT', 'DELETE'):
+        for method in ('GET', 'DELETE'):
+            expected['actions'][method] = {}
+        for method in ('PATCH', 'PUT'):
             expected['actions'][method] = {
                 'text': {
                     # TODO uncomment label and description when they are

rest_framework/views.py

@@ -79,7 +79,14 @@ def _generate_action_metadata(self, request):
             try:
                 self.check_permissions(cloned_request)
 
+                # TODO: discuss whether and how to expose parameters like e.g. filter or paginate
+                if method in ('GET', 'DELETE'):
+                    actions[method] = {}
+                    continue
+
                 # TODO: find right placement - APIView does not have get_serializer
+                if not hasattr(self, 'get_serializer'):
+                    continue
                 serializer = self.get_serializer()
                 if serializer is not None:
                     field_name_types = {}