Fix flavor profile API handling of None updates

The current flavor profile API does not properly handle
clearing/reseting values on update. Some mandatory fields would
return a database "cannot be Null" error. This patch raises the
proper invalid option execption.

Story: 2005374
Task: 33542

Change-Id: I5253c48871a8bb3bf91f82aa7791585cc4a6d529

octavia/api/v2/controllers/flavor_profiles.py

@@ -111,6 +111,24 @@ class FlavorProfileController(base.BaseController):
             db_flavor_profile, profile_types.FlavorProfileResponse)
         return profile_types.FlavorProfileRootResponse(flavorprofile=result)
 
+    def _validate_update_fp(self, context, id, flavorprofile):
+        if flavorprofile.name is None:
+            raise exceptions.InvalidOption(value=None, option=constants.NAME)
+        if flavorprofile.provider_name is None:
+            raise exceptions.InvalidOption(value=None,
+                                           option=constants.PROVIDER_NAME)
+        if flavorprofile.flavor_data is None:
+            raise exceptions.InvalidOption(value=None,
+                                           option=constants.FLAVOR_DATA)
+
+        # Don't allow changes to the flavor_data or provider_name if it
+        # is in use.
+        if (not isinstance(flavorprofile.flavor_data, wtypes.UnsetType) or
+                not isinstance(flavorprofile.provider_name, wtypes.UnsetType)):
+            if self.repositories.flavor.count(context.session,
+                                              flavor_profile_id=id) > 0:
+                raise exceptions.ObjectInUse(object='Flavor profile', id=id)
+
     @wsme_pecan.wsexpose(profile_types.FlavorProfileRootResponse,
                          wtypes.text, status_code=200,
                          body=profile_types.FlavorProfileRootPUT)
@@ -121,13 +139,7 @@ class FlavorProfileController(base.BaseController):
         self._auth_validate_action(context, context.project_id,
                                    constants.RBAC_PUT)
 
-        # Don't allow changes to the flavor_data or provider_name if it
-        # is in use.
-        if (not isinstance(flavorprofile.flavor_data, wtypes.UnsetType) or
-                not isinstance(flavorprofile.provider_name, wtypes.UnsetType)):
-            if self.repositories.flavor.count(context.session,
-                                              flavor_profile_id=id) > 0:
-                raise exceptions.ObjectInUse(object='Flavor profile', id=id)
+        self._validate_update_fp(context, id, flavorprofile)
 
         if not isinstance(flavorprofile.flavor_data, wtypes.UnsetType):
             # Do a basic JSON validation on the metadata

octavia/common/constants.py

@@ -340,6 +340,8 @@ BYTES_IN = 'bytes_in'
 BYTES_OUT = 'bytes_out'
 REQUEST_ERRORS = 'request_errors'
 TOTAL_CONNECTIONS = 'total_connections'
+NAME = 'name'
+PROVIDER_NAME = 'provider_name'
 
 CERT_ROTATE_AMPHORA_FLOW = 'octavia-cert-rotate-amphora-flow'
 CREATE_AMPHORA_FLOW = 'octavia-create-amphora-flow'

octavia/tests/functional/api/v2/test_flavor_profiles.py

@@ -328,7 +328,7 @@ class TestFlavorProfiles(base.BaseAPITest):
         self.assertEqual('{"hello": "world"}',
                          response.get(constants.FLAVOR_DATA))
 
-    def test_update_none(self):
+    def test_update_nothing(self):
         fp = self.create_flavor_profile('test_profile', 'noop_driver',
                                         '{"x": "y"}')
         body = self._build_body({})
@@ -340,6 +340,25 @@ class TestFlavorProfiles(base.BaseAPITest):
         self.assertEqual('{"x": "y"}',
                          response.get(constants.FLAVOR_DATA))
 
+    def test_update_name_none(self):
+        self._test_update_param_none(constants.NAME)
+
+    def test_update_provider_name_none(self):
+        self._test_update_param_none(constants.PROVIDER_NAME)
+
+    def test_update_flavor_data_none(self):
+        self._test_update_param_none(constants.FLAVOR_DATA)
+
+    def _test_update_param_none(self, param_name):
+        fp = self.create_flavor_profile('test_profile', 'noop_driver',
+                                        '{"x": "y"}')
+        expect_error_msg = ("None is not a valid option for %s" %
+                            param_name)
+        body = self._build_body({param_name: None})
+        response = self.put(self.FP_PATH.format(fp_id=fp.get('id')), body,
+                            status=400)
+        self.assertEqual(expect_error_msg, response.json['faultstring'])
+
     def test_update_no_flavor_data(self):
         fp = self.create_flavor_profile('test_profile', 'noop_driver',
                                         '{"x": "y"}')

releasenotes/notes/Fix-API-update-null-None-1b400962017a3d56.yaml

@@ -0,0 +1,6 @@
+---
+fixes:
+  - |
+    Fixed the API handling of None (JSON null) on object update calls. The
+    API will now either clear the value from the field or will reset the value
+    of the field to the API default.