Flask SqlAlchemy join two models without foreign key MYSQL
You need to tell SQLAlchemy how to join the tables. Try something like this:
result = db.session.query(Users).join(TimeOff,Users.userName==TimeOff.userName)
To improve upon @Matt Healy's answer, if you also want to be able to access attributes on the joined object you can do something like:
user, timeOff = db.session.query(Users, TimeOff).join( TimeOff, Users.userName == TimeOff.userName).first()
Then timeOff.dayWork
etc. will give the information you need.
Its an old post but I had a similar problem
result = session.query(models.Users).join(models.TimeOff, models.Users.userName == models.TimeOff.userName).all()
with this method, I can reach the features of the first object which is Users but not the TimeOff. I am wondering if it is possible to reach the secondary object's attributes. But I hope this helps.