The problem turned out to be indeed connected with the app context. This one did not work: ... <看更多>

Tired of doing db.session.add and db.session.commit to save your records? Have no fear, save is here. Note: This is for use with Flask-SQLAlchemy - core.py. ... <看更多>

update(name='Bat'); user.delete() . You never have to pass sessions around. Notice that I'm only flushing the session, however. Commits ... ... <看更多>

I use Ubuntu 18.04, Flask. I suppose that the problem is somehow related to SQLAlchemy libarary or some adjustments should be done to the confiquration files. ... <看更多>

I talk about how to use Flask-SQLAlchemy to create tables for you and how to create one-to-many ... ... <看更多>