Can someone help me understand why I can't seem to do a simple left outer join
between these two tables:
q = self.session.query(Car, Invoice.id_)
q = q.outerjoin(Car, Invoice)
sqlalchemy.exc.ArgumentError: Can't find any foreign key relationships between
'cars' and 'cars'.
Thanks,
Michael
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class Car(Base):
__tablename__ = 'cars'
id_ = Column(Integer, primary_key=True)
class Invoice(Base):
__tablename__ = 'invoices'
id_ = Column(Integer, primary_key=True)
car_id = Column(Integer, ForeignKey('cars.id_'))
car = relationship(Car, backref=backref('invoices', order_by=id_),
primaryjoin="Invoice.car_id==Car.id_")
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