take all access flags in a document into account

mediametadatatodb_app/resources/MediametadataToDB.py

@@ -103,7 +103,7 @@ def _extract_thumbnail_values(msg, _access_status) -> dict:
     else:
         file_extension = ''
         logging.warning('No valid mimetype found!')
-    return_values['uri'] = 'file:///data/{}-poster.{}'.\
+    return_values['uri'] = 'file:///data/{}-poster.{}'. \
         format(msg['@id'].split('/')[-2], file_extension)
     return return_values
 
@@ -207,24 +207,45 @@ def _get_access_status(graph, record_id) -> str:
     Decide on access status. Possible values are `public`, `closed`, `unavailable`,
     `faro`, `onsite`, or `noonsite`
     """
+    # Since several access flags in one document are possible, we have to apply a ranking
+    # which is `closed`, `public`, `faro`, `onsite`, `noonsite` and as fallback `unavailable`
+    access_flags = list()
     for resource in graph:
         if 'type' in resource and resource['type'] == 'access' and \
                 'regulates' in resource and \
                 resource['regulates'].startswith('https://memobase.ch/digital/') and \
                 'name' in resource:
             if resource['name'] == 'public':
-                logging.debug(f'{record_id}: Setting access for digital object to `public`')
-                return 'public'
+                access_flags.append('public')
             elif resource['name'] == 'private':
                 logging.debug(f'{record_id}: Setting access for digital object to `closed`')
-                return 'closed'
+                access_flags.append('closed')
             else:
                 logging.info(f'Digital object of record {record_id} has access type ' +
                              f'`{resource["name"]}`. This makes the media resource unavailable.')
-                return resource['name']
-    logging.info(f'Digital object of record {record_id} has no related access information!'
-                 + ' Media resource is therefore unavailable')
-    return 'unavailable'
+                access_flags.append(resource['name'])
+    if 'closed' in access_flags:
+        logging.debug(f'{record_id}: Setting access for digital object to `closed`')
+        return 'closed'
+    elif 'public' in access_flags:
+        logging.debug(f'{record_id}: Setting access for digital object to `public`')
+        return 'public'
+    elif 'faro' in access_flags:
+        logging.info(f'Digital object of record {record_id} has access type `faro`.' +
+                     ' This makes the media resource unavailable.')
+        return 'faro'
+    elif 'onsite' in access_flags:
+        logging.info(f'Digital object of record {record_id} has access type `onsite`.' +
+                     ' This makes the media resource unavailable.')
+        return 'onsite'
+    elif 'noonsite' in access_flags:
+        logging.info(f'Digital object of record {record_id} has access type `noonsite`.' +
+                     ' This makes the media resource unavailable.')
+        return 'noonsite'
+    else:
+        logging.info(f'Digital object of record {record_id} has no or invalid access information!'
+                     + ' The media resource is therefore unavailable')
+        return 'unavailable'
 
 
 def _get_record_id(graph) -> str: