SQLAlchemy: Getting a single object from joining multiple tables

Question

DB - SQLAlchemy setting

Consider a classic setting of two tables - user and api_key, represented by SQLAlchemy objects as:

Answer 1

I would add an api_key relationship on User:

class User(Base):
    __tablename__ = 'user'
    user_id = Column(String)
    user_name = Column(String)
    vioozer_api_key = Column(String, ForeignKey("api_key.api_key"))
    api_key = Relationship('ApiKey', uselist=False)

Then you can do a query like this:

>>> user = database.db_session.query(User)\
      .filter(User.user_id=='user_00000000000000000000000000000000').first()
>>> user.api_key