It appears that auth.settings.create_user_groups takes either False or the
string that formats the user group creation message.

So you'll need to provide a string format representation ie '%(id)s' as is
shown in the error.

However that won't convert to a boolean, so your cast function will fail.

-Mark

On Thu, Nov 19, 2015 at 11:22 PM, 黄祥 <steve.van.chris...@gmail.com> wrote:

> same result, here is step i took
> 1. create new simple application from web2py admin named a
> 2. add auth in privates/appconfig.ini
> [auth]
> create_user_groups = 1
> 3. add auth in models/db.py
> auth.settings.create_user_groups = myconf.take('auth.create_user_groups',
> cast = lambda value: bool(int(value) ) )
>
> attached the simple app that i took the step above, when i change
> create_user_groups = 0, no error occured when i sign up, but, when i set
> create_user_group = 1, same error traceback occured, when i sign up
>
> best regards,
> stifan
>
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