Merge pull request #65 from teynar/fix/missing-photoLink-field

Fix missing photoLink field in Google Drive source indexing

Author: Roey7

app/data_sources/google_drive.py

@@ -181,7 +181,7 @@ def _index_files_from_drive(self, drive) -> List[dict]:
                 title=file['name'],
                 content=content,
                 author=file['lastModifyingUser']['displayName'],
-                author_image_url=file['lastModifyingUser']['photoLink'],
+                author_image_url=file['lastModifyingUser'].get('photoLink'),
                 location=parent_name,
                 url=file['webViewLink'],
                 timestamp=last_modified,