Move verbs endpoint to use new registry data model

data/registry_model/datatypes.py

@@ -28,6 +28,7 @@ class RepositoryReference(datatype('Repository', [])):
   def _repository_obj(self):
     return model.repository.lookup_repository(self._db_id)
 
+  @property
   def namespace_name(self):
     """ Returns the namespace name of this repository.
     """
@@ -183,7 +184,7 @@ class ManifestLayer(namedtuple('ManifestLayer', ['layer_info', 'blob'])):
       return self.blob.uncompressed_size
 
     return (self.layer_info.compressed_size or 0) * estimate_multiplier
-    
+
 
 class Blob(datatype('Blob', ['uuid', 'digest', 'compressed_size', 'uncompressed_size',
                              'uploading'])):

data/registry_model/registry_pre_oci_model.py

@@ -398,6 +398,8 @@ class PreOCIModel(RegistryDataInterface):
         return None
 
       image_storage = storage_map[digest_str]
+      assert image_storage.cas_path is not None
+
       placements = None
       if include_placements:
         placements = list(model.storage.get_storage_locations(image_storage.uuid))
@@ -551,6 +553,8 @@ class PreOCIModel(RegistryDataInterface):
     except model.BlobDoesNotExist:
       return None
 
+    assert image_storage.cas_path is not None
+
     placements = None
     if include_placements:
       placements = list(model.storage.get_storage_locations(image_storage.uuid))

data/registry_model/test/test_pre_oci_model.py

@@ -35,6 +35,8 @@ def test_find_matching_tag(names, expected, pre_oci_model):
     assert found is None
   else:
     assert found.name in expected
+    assert found.repository.namespace_name == 'devtable'
+    assert found.repository.name == 'simple'
 
 
 @pytest.mark.parametrize('repo_namespace, repo_name, expected', [