Hello. I'm trying to get a view to check if a user has already rated
something (ie, is in the hasrated database). I have this code {{if
ratings.username.IS_NOT_IN_DB(auth.user):}} But when the database is
empty I get a Nonetype error. Then, when I manually add myself to the
database, I get <type 'exceptions.AttributeError'>('str' object has no
attribute 'IS_NOT_IN_DB'). Also, in my controller for the page that
activates this, I have ratings =
db(db.hasrated._id==request.args(0)).select().first()
My db is as follows:
db.define_table('hasrated',
Field('_id', db.comment),
Field('username'))
What I would like to have happen is to when they rate a comment, they
are no longer allowed to rate it or allowed to rate it in the opposite
direction, say if they change their mind. I'm relatively new to
web2py, although I instantly fell in love with it as a web developer.
Alas, that does limit the complexity of code I'm able to understand at
the moment, although I'm very open to learning as long as its well
explained as is the official book. Any ideas?
