I just meant take the requires out of the table definition and put it as a statement below the table. That's how all the examples are in the book: http://web2py.com/book/default/chapter/07#Database-Validators
I'm not sure it's the case in this instance or exactly what the issue is but sometimes the requires cannot be placed in the table definition. If it still doesn't work, we need to see some code and a further error trace.

