SqlAlchemy - Filtering by Relationship Attribute

Question

I don\'t have much experience with SQLAlchemy and I have a problem, which I can\'t solve. I tried searching and I tried a lot of code. This is my Class (reduced to the most

Answer 1

This is a more general answer on how to query relationships.

relationship(..., lazy='dynamic', ...)

This allows you to:

parent_obj.some_relationship.filter(ParentClass.some_attr==True).all()