Question

I’m trying to create an app where all data belongs to exactly one user, and users only axcess their own data (e.g. email). I model this in my models.py file like so:

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

class Foo(models.Model):
    owner=ForeignKey(User, related_name='foos')

which seems to work fine.

python manage.py sql appFoo

displays sql including

CREATE TABLE "appFoo_foo" (
    "id" integer NOT NULL PRIMARY KEY,
    "owner_id" integer NOT NULL REFERENCES "auth_user" ("id")
    ...

The problem, though, arises when I try to delete users I have created for testing purposes, both using

User.objects.exclude(username='root').delete()

and using the built-in django admin app. In either case I get a database error saying that the table appFoo_foo has no column named owner_id. This is after running syncdb. Any thoughts as to why this might happen?

Answer 1

I swear I looked for related questions before asking this one, but I didn’t see Database error : no such column: connect_connect.reciever_id until after I asked it. My problem was the same. Basically, I added a field to my model and expected syncdb to modify the database accordingly, but apparently it doesn’t. I had to run

manage.py reset appFoo

followed by syncdb again, and it worked like a charm.

Edit: I’m just now reading that reset is deprecated and you can use flush instead.