fix for issue 750 (#751)

wis2box-management/wis2box/pubsub/subscribe.py

@@ -103,14 +103,12 @@ def handle_publish(self, message):
         LOGGER.debug('Loading MessageData plugin to publish data from message') # noqa
         topic_hierarchy = message['channel']
         metadata_id = message.get('metadata_id')
-        # if metadata_id not provided determine from topic_hierarchy
+        # if metadata_id not provided, log error and return
         if metadata_id is None:
-            for key, value in self.data_mappings.items():
-                if topic_hierarchy in (value['topic_hierarchy']):
-                    topic_hierarchy = (value['topic_hierarchy'])
-                    metadata_id = key
-                    break
-
+            LOGGER.error('metadata_id not provided in message received on topic wis2box/data/publication') # noqa
+        # ensure topic_hierarchy starts with 'origin/a/wis2/'
+        if not topic_hierarchy.startswith('origin/a/wis2/'):
+            topic_hierarchy = f'origin/a/wis2/{topic_hierarchy}'
         defs = {
             'topic_hierarchy': topic_hierarchy,
             '_meta': message['_meta'],