Added convert.py implementation for tarantool

planetmint/backend/tarantool/convert.py

@@ -0,0 +1,26 @@
+# Copyright © 2020 Interplanetary Database Association e.V.,
+# Planetmint and IPDB software contributors.
+# SPDX-License-Identifier: (Apache-2.0 AND CC-BY-4.0)
+# Code is Apache-2.0 and docs are CC-BY-4.0
+
+"""Convert implementation for Tarantool"""
+
+from planetmint.backend.utils import module_dispatch_registrar
+from planetmint.backend import convert
+from planetmint.backend.tarantool.connection import TarantoolDBConnection
+
+register_query = module_dispatch_registrar(convert)
+
+
+@register_query(TarantoolDBConnection)
+def prepare_asset(connection, transaction_type, transaction_id, filter_operation, asset):
+    asset_id = transaction_id
+    if transaction_type != filter_operation:
+        asset_id = asset['id']
+    return tuple([asset, transaction_id, asset_id])
+
+
+@register_query(TarantoolDBConnection)
+def prepare_metadata(connection, transaction_id, metadata):
+    return {'id': transaction_id,
+            'metadata': metadata}