Problem if my id key is not integer

[ghost]

My models all extend my custom model class which id is a CharField not a PositiveIntegerField like the Django's default django.db.models.Model . So, when I try to add a vote, the code will fail at:

rating, created = Vote.objects.get(**kwargs), False

in fields.py because of the object_id field being defined like this in models.py:

object_id       = models.PositiveIntegerField()

Any ideas how should I deal with this ?

Thanks in advance

[dengyuanzhong]

I have the same problem!

[gakhov]

I have the same problem, since my PrimaryKey is a SlugField.