hi again
I'm writing custom scientific reference management application and
encountered a strange thing, cannot understand if it is bug or
feature, see example models.py:
from django.db import models
class Author(models.Model):
name = models.CharField(maxlength=50)
class Reference(models.Model):
"""
>>> a = Author(name='some name')
>>> a.save()
>>> r = Reference(title='some title')
>>> r.authors.add(a)
>>> r.save()
"""
title = models.CharField(maxlength=50)
authors = models.ManyToManyField(Author)
the above doctest failed with message "ValueError: <...> instance
needs to have a primary key value before a many-to-many relationship
can be used." ok, I gave it (add one more field to Reference, though
it is default):
id = models.AutoField(primary_key=True)
and it does't work! ok, try nondefault:
idid = models.IntegerField(primary_key=True)
again doesn't work... the only way to make it work is to modify title
field by adding primary_key=True (or crate a dummy CharField since I
do not want to have primary key on title)
I tried django-0.96 on Gentoo
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