Hello.
I have Category model:
class Category(Base):
__tablename__ = 'categories'
id = Column(Integer, primary_key=True)
parent_id = Column(Integer, ForeignKey('categories.id'))
name = Column(Unicode(255), nullable=False)
description = Column(UnicodeText)
position = Column(Integer)
children = relationship('Category', backref=backref('parent',
remote_side=[id]), lazy='joined', join_depth=1,
order_by='Category.position')
But I can't access it's 'parent' backref (I want to use it in order_by).
Why?
>>> from whs.models import Category
>>> Category.parent
Traceback (most recent call last):
File "<console>", line 1, in <module>
AttributeError: type object 'Category' has no attribute 'parent'
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