Update openlibrary author with ISNI

bookwyrm/connectors/abstract_connector.py

@@ -177,9 +177,10 @@ class AbstractConnector(AbstractMinimalConnector):
 
     def get_or_create_author(self, remote_id, instance=None):
         """load that author"""
-        existing = models.Author.find_existing_by_remote_id(remote_id)
-        if existing:
-            return existing
+        if not instance:
+            existing = models.Author.find_existing_by_remote_id(remote_id)
+            if existing:
+                return existing
 
         data = self.get_book_data(remote_id)
 

bookwyrm/connectors/openlibrary.py

@@ -68,6 +68,7 @@ class Connector(AbstractConnector):
             Mapping("born", remote_field="birth_date"),
             Mapping("died", remote_field="death_date"),
             Mapping("bio", formatter=get_description),
+            Mapping("isni", remote_field="remote_ids", formatter=get_isni),
         ]
 
     def get_book_data(self, remote_id):
@@ -226,6 +227,13 @@ def get_languages(language_blob):
     return langs
 
 
+def get_isni(remote_ids_blob):
+    """extract the isni from the remote id data for the author"""
+    if not remote_ids_blob or not isinstance(remote_ids_blob, dict):
+        return None
+    return remote_ids_blob.get("isni")
+
+
 def pick_default_edition(options):
     """favor physical copies with covers in english"""
     if not options: