Sorting And Deleting A 1-to-many Relatiionship In Sqlalchemy And Flask

I am working a CRUD flask project that works with a 1-to-many relationship. The end result looks like this, Flask Webform. However when I submit the form for the Update route, it

Solution 1:

move filter_by in front of .all()

all_comps = Company.query.filter_by(frankendama_id = id).all()

edit 1: Also you can remove 'Company.' when using filter_by and you only need a single equals sign