Hello everyone! I was hoping to use calibre-web image on a Synology NAS, but after starting container and setting up the database, I continuously get this error from the UI: AttributeError: 'NoneType' object has no attribute 'query'
I found this issue in the app repository where the creator state that the error is due to the dockerisation and is not due to the app itself: [Docker] AttributeError: 'NoneType' object has no attribute 'query' · Issue #2231 · janeczku/calibre-web · GitHub
This issue, duplicated of the first with slightly more details: Unable to access webui, running on unraid docker container · Issue #2380 · janeczku/calibre-web · GitHub
It seems the issue lies in permissions around accessing the metadata database.
This is the screenshot:
This is the stacktrace:
Traceback (most recent call last):
File "/usr/local/lib/python3.8/dist-packages/flask/app.py", line 2073, in wsgi_app
response = self.full_dispatch_request()
File "/usr/local/lib/python3.8/dist-packages/flask/app.py", line 1518, in full_dispatch_request
rv = self.handle_user_exception(e)
File "/usr/local/lib/python3.8/dist-packages/flask/app.py", line 1516, in full_dispatch_request
rv = self.dispatch_request()
File "/usr/local/lib/python3.8/dist-packages/flask/app.py", line 1502, in dispatch_request
return self.ensure_sync(self.view_functions[rule.endpoint])(**req.view_args)
File "/app/calibre-web/cps/usermanagement.py", line 35, in decorated_view
return login_required(func)(*args, **kwargs)
File "/usr/local/lib/python3.8/dist-packages/flask_login/utils.py", line 303, in decorated_view
return current_app.ensure_sync(func)(*args, **kwargs)
File "/app/calibre-web/cps/web.py", line 781, in index
return render_books_list("newest", sort_param, 1, page)
File "/app/calibre-web/cps/web.py", line 399, in render_books_list
entries, random, pagination = calibre_db.fill_indexpage(page, 0, db.Books, True, order[0],
File "/app/calibre-web/cps/db.py", line 730, in fill_indexpage
return self.fill_indexpage_with_archived_books(page, database, pagesize, db_filter, order, False,
File "/app/calibre-web/cps/db.py", line 737, in fill_indexpage_with_archived_books
random_query = self.generate_linked_query(config_read_column, database)
File "/app/calibre-web/cps/db.py", line 691, in generate_linked_query
query = (self.session.query(database, ub.ArchivedBook.is_archived, ub.ReadBook.read_status)
AttributeError: 'NoneType' object has no attribute 'query'
There are no errors in the logs, the calibre DB is correctly mounted in the /books, where I see the metadata.db file:
root@linuxserver-calibre-web1:/books# file metadata.db
metadata.db: SQLite 3.x database, user version 22, last written using SQLite version 3011000
Any idea what could be wrong here?