Fix unbound local when saving an unchanged RequestSpec
RequestSpec._get_update_primitives() tried to return the unitialized db_updates field when the object has no changes. This patch initalizes that local to None and handles that None in create() and save() where the RequestSpec._get_update_primitives() is called. Change-Id: Iad256079945bf8b5745ebdcc393c55115dbcab75 Closes-Bug: #1775863
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@ -513,6 +513,7 @@ class RequestSpec(base.NovaObject):
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it was originally scheduled with.
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"""
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updates = self.obj_get_changes()
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db_updates = None
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# NOTE(alaski): The db schema is the full serialized object in a
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# 'spec' column. If anything has changed we rewrite the full thing.
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if updates:
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@ -538,7 +539,9 @@ class RequestSpec(base.NovaObject):
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reason='already created')
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updates = self._get_update_primitives()
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if not updates:
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raise exception.ObjectActionError(action='create',
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reason='no fields are set')
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db_spec = self._create_in_db(self._context, updates)
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self._from_db_object(self._context, self, db_spec)
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@ -556,9 +559,11 @@ class RequestSpec(base.NovaObject):
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@base.remotable
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def save(self):
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updates = self._get_update_primitives()
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db_spec = self._save_in_db(self._context, self.instance_uuid, updates)
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self._from_db_object(self._context, self, db_spec)
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self.obj_reset_changes()
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if updates:
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db_spec = self._save_in_db(self._context, self.instance_uuid,
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updates)
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self._from_db_object(self._context, self, db_spec)
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self.obj_reset_changes()
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@staticmethod
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@db.api_context_manager.writer
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@ -667,6 +667,16 @@ class _TestRequestSpecObject(object):
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primitive = destination.obj_to_primitive(target_version='1.0')
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self.assertNotIn('aggregates', primitive['nova_object.data'])
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def test_create_raises_on_unchanged_object(self):
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ctxt = context.RequestContext(uuids.user_id, uuids.project_id)
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req_obj = request_spec.RequestSpec(context=ctxt)
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self.assertRaises(exception.ObjectActionError, req_obj.create)
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def test_save_can_be_called_on_unchanged_object(self):
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req_obj = fake_request_spec.fake_spec_obj(remove_id=True)
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req_obj.create()
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req_obj.save()
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class TestRequestSpecObject(test_objects._LocalTest,
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_TestRequestSpecObject):
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