Matt Haggard wrote:
I'm using SQLAlchemy with Pylons and am having trouble validating
data. I have an App object mapped to a table with a unique constraint
on App.number.
Here's some code:
q = Session.query(App)
if app_id:
q = q.filter_by(id=app_id).first()
Matt,
Take a look at the formencode module, it will simplify what you are
trying to do here - handles all your parameter validation, form
filling, and telling the user X,Y,Z are wrong etc.
http://wiki.pylonshq.com/display/pylonsdocs/Form+Handling
and formencode docs
http://www.formencode.org/