Validating a slug in Django

Question

Hi

I'm guessing this is going to involve regexp or something, but I'll give it a shot. At the minute, a user can break a website by typing something similar to £$(*£$(£@$&£($ in the title field, which is converted into a slug using Django slugify.

Because none of these characters can be converted, Django returns an error. My question is, what should I put in the form validation method to raise a forms.ValidationError when the user uses a title like this?

Thanks.

Answer 1

A slug should have at least one letter or number. The regex you're looking for is just:

[a-zA-Z0-9]+

or

[\w\d]+

But you should also check to see if there are other slugs (already stored) with the same name.