db.auth_user.username.requires = IS_LENGTH(20)

you can specify a min length and max length.

On Thursday, 23 October 2014 01:43:34 UTC-5, LoveWeb2py wrote:
>
> Hello -- simple question. Is it possible to set a username length with 
>
> db.auth_user.username.requires = length 20
>
> Something to that effect? By default users can create as long of a 
> username as they want and I'd like to make it a little more secure. The 
> book mentions redefining the auth.user table but I was wondering if there 
> is a built-in dal method I could use in db.py
>

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