malagaonrails, It looks like my readme needs a little work. included is a custom auth class that adds 2 fields to the auth_user table (otherwise it's the same as the built-in auth). so in db.py you should add the following import:

from applications..modules.customAuth import CustomAuth

and, where you initialize auth for the first time, use the custom auth like so:

auth=CustomAuth(globals(),T,db, True)  # authentication/authorization

and then keep auth.define_tables() or use auth.define_tables(migrate=True) if you are not using auto migration you will have to update the database to add the two new fields. for postgres the SQL updates commands would be like:

ALTER TABLE auth_user ADD COLUMN twitter_id var_char(128) UNIQUE;
ALTER TABLE auth_user ADD COLUMN facebook_id var_char(128) UNIQUE; 

this allows the code that links accounts together to work properly. good luck, christian