Hi -
I'm running latest (released) Elixir + SQLAlchemy on Gentoo w/ Python
2.4.
I'm brand new to Elixir so I was walking through the tutorial to see
how it all works. I setup my model.py per the instructions:
------------------
from elixir import *
metadata.bind = "sqlite:///movies.sqlite"
metadata.bind.echo = True
class Movie(Entity):
title = Field(Unicode(30))
year = Field(Integer)
description = Field(Unicode)
director = ManyToOne('Director')
def __repr__(self):
return '<Movie "%s" (%d)>' % (self.title, self.year)
class Director(Entity):
name = Field(Unicode(60))
movies = OneToMany('Movie')
def __repr__(self):
return '<Director "%s">' % self.name
-------------------------
... but I got stuck trying to execute these lines (condensed for sake
of example):
>>> rscott = Director(name="Ridley Scott")
>>> brunner = Movie(title="Blade Runner", year=1982)
>>> rscott.movies.append(brunner)
Traceback (most recent call last):
File "<stdin>", line 1, in ?
AttributeError: 'Director' object has no attribute 'movies'
I dug around a little but didn't see an obvious note about this
anywhere. I decided to look at the videostore example source code,
where I noticed a difference in how the relationships were defined.
Specifically, the use of "inverse":
director = ManyToOne('Director', inverse='movies')
...
movies = OneToMany('Movie', inverse='director')
Passing the inverse param to the relationship classes fixed the
problem for me. (So now I continue on with the tutorial.)
I would have filed a ticket, but it looks like I need to request a
Trac account first. I would also be happy to update the wiki page,
but obviously would need a Trac account for that too.
I don't know if this is related to using Python 2.4 ... or ... ?
Thanks,
Hans
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