Hello friends, I need some help about Elixir and the ManyToMany relations.
Well, let me explain you, for some weeks I had read examples like this:
from elixir import *
metadata.bind = "mysql://root:pa...@localhost/DB"
metadata.bind.echo = True
class Movie(Entity):
title = Field(Unicode(30), primary_key=True)
year = Field(Integer, primary_key=True)
description = Field(UnicodeText)
releasedate = Field(DateTime)
director = ManyToOne('Director')
genres = ManyToMany('Genre')
actors = ManyToMany('Actor')#, tablename='movie_casting')
def __repr__(self):
return '<Movie "%s" (%d)>' % (self.title, self.year)
class Person(Entity):
using_options(inheritance='multi')
name = Field(Unicode(60))
def __repr__(self):
return '<Person "%s">' % self.name
class Actor(Person):
using_options(inheritance='multi')
movies = ManyToMany('Movie')#, tablename='movie_casting')
def __repr__(self):
return '<Actor "%s">' % self.name
class Director(Person):
using_options(inheritance='multi')
movies = OneToMany('Movie')
def __repr__(self):
return '<Director "%s">' % self.name
class Genre(Entity):
name = Field(Unicode(15), primary_key=True)
movies = ManyToMany('Movie')
def __repr__(self):
return '<Genre "%s">' % self.name
setup_all(True)
...but I always get the same error:
Traceback (most recent call last):
setup_all(True)
setup_entities(entities)
method()
self.call_builders('create_tables')
getattr(builder, what)()
if self.inverse.secondary_table:
raise TypeError("Boolean value of this clause is not defined")
TypeError: Boolean value of this clause is not defined
... I'm working in Ubuntu 9.10 and I don't know how to solve this, please I
need some help.
Thanks a lot.
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