Expand matching books on keys like isbn

fedireads/connectors/self_connector.py

@@ -34,17 +34,20 @@ class Connector(AbstractConnector):
         search_results = []
         for book in results[:10]:
             search_results.append(
-                SearchResult(
-                    book.title,
-                    book.id,
-                    book.author_text,
-                    book.published_date.year if book.published_date else None,
-                    None
-                )
+                self.format_search_result(book)
             )
         return search_results
 
 
+    def format_search_result(self, book):
+        return SearchResult(
+            book.title,
+            book.id,
+            book.author_text,
+            book.published_date.year if book.published_date else None,
+        )
+
+
     def get_or_create_book(self, book_id):
         ''' since this is querying its own data source, it can only
         get a book, not load one from an external source '''