You might try redefining the sessions table after defining the auth tables 
using the redefine=True argument: 
http://web2py.com/books/default/chapter/29/06/the-database-abstraction-layer#redefine.

Anthony

On Saturday, August 1, 2015 at 7:12:06 AM UTC-4, Octavian G wrote:
>
> Hello,
>
>      I'd like to implement a notification system for various events 
> happening in the app. I'd like it to work with the web2py_session_appname 
> table, because it would mean I could piggyback that select. For that, I'd 
> like to add a field to the sessions table, pointing to the user's ID in 
> auth_user. This way, when I have an event, I could look up users' sessions 
> and update their session data to reflect the fact that they have new 
> notifications.
>
>      I added a field to the session table (in gluon/globals), so that when 
> it gets created it has a new field, user_id. Problem is, it can't reference 
> auth_user. Further, I need to insert the user id in that field when a user 
> logs in.  How would I do that ?
>
>      Is there another way to programatically get a user's session(s), 
> provided they're stored in the DB ?
>

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