Django database error on one to many relationship

Question

I created a data model in Django which has many to one relation (N topics to 1 user) like this:

from django.db import models from django.contrib.auth.models import User

# Create your models here.
class Topic(models.Model):
    content = models.CharField(max_length=2000)
    pub_date = models.DateTimeField('date published')
    author = models.ForeignKey(User)

When I try to load the data model in the admin page, I get this error:

Exception Value:    
no such column: talk_comment.author_id

Did I miss something in the data model?

Thanks.

Answer 1

You forgot to actually modify/create the tables in database (manually, with South or manage.py syncdb).

Answer 2

You can't modify the table with syncdb . you need to use South Migrations

Its really very good and you can even revert back to previous migration in case of some problem