I'm working through a flask app built roughly following the Flask Mega Tutorial from Miguel Grinberg. I did not realize I made a change incorrectly when adding a foreign key until I ran the flask db upgrade command. flask db migrate ran just fine. The error at the end of the stack dump was: ValueError: Constraint must have a name So clearly my rookie self needs to find the right way to do this, so I undid the changes to my db models and thought I should then downgrade my flask migration and try again after researching my mistake. Unfortunately I am unable to run flask db downgrade as I get the same error. Continue reading...
