Hi,
I apologize in advance if this is a newbie question, but this is
pretty wierd and I couldn't find an answer in the docs.
I have these two "tables":
class Node(Base):
__tablename__ = 'nodes'
id = Column(Integer, primary_key=True)
name = Column(String)
class Link(Base):
__tablename__ = 'links'
node_id = Column(Integer, ForeignKey('nodes.id'))
id = Column(Integer, primary_key=True)
type = Column(String)
fro = relation(Node, order_by=Node.id, backref="links_out")
to = relation(Node, order_by=Node.id, backref="links_in")
Just to clarify, I want each link to appear in the "links_out" of its
from-node, and in the links_in of it's to-node.
This works just fine when I create the classes, but once I commit the
changes into a session, everything gets messed up (maybe the links_in
and links_out aren't seperated as I would expect).
A quick example:
>>> sqlalchemy.__version__
'0.5.0beta2'
>>> cat = Node()
>>> cat.name = "cat"
>>> animal = grm.Node()
>>> animal.name = "animal"
>>> link = Link()
>>> link.type = "is a"
>>> link.fro = cat
>>> link.to = animal
>>> link
#cat >is a> #animal
>>> session.add(cat)
>>> session.add(animal)
>>> session.add(link)
>>> session.commit()
>>> link
#animal >is a> #animal
Any ideas?
Thanks, Erez.
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