On Tue, 18 Jul 2006, Alberto Valverde wrote:
> You can pass any instance as a value to the form and it's attributes
> will be fetched as values for the child widgets (the form's fields).
> Something like:
>
> class User(SQLObject):
> name = StringCol(alternateId=True)
> age = IntCol()
>
> class MyForm(TableForm):
> fields = [
> TextField('name'),
> TextField('age'),
> ]
>
> form = MyForm()
> form.display(User.byName('alberto'))
presumably I'd use the display method as follows:
@expose(template=".templates.form")
def editUser(self, tg_errors=None, *args, **params):
if tg_errors:
turbogears.flash("Error on form: " + str(tg_errors))
id = params.get("id", None)
if (id):
try:
user = User.get(id)
user_form.display(user)
except SQLObjectNotFound:
raise NotFound()
return dict(form=user_form, action='saveUser', title='Edit User')
Sadly, that does not work, I continue to get an empty form client-side.
Also, one wonders about the safety of multiple threads using same
user_form instance simultaneously, but that's another topic I have yet to
even dive into.
fwiw, my form template is very simple, copied from one of the form
generator examples in the wiki:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd";>
<html xmlns="http://www.w3.org/1999/xhtml";
xmlns:py="http://purl.org/kid/ns#";
py:extends="'master.kid'">
<head>
<meta content="text/html; charset=UTF-8" http-equiv="content-type"
py:replace="''"/>
<title>${getattr(self,'title','Forms Tutorial')}</title>
</head>
<body>
<p py:content="form(action=action)">Comment form</p>
</body>
</html>
Apologies for my appalling ignorance, but I'm having trouble with the lack
of forms widget documentation. :) If I'm able to get this identity
management app working, I'll be happy to wiki it on up for others to learn
from.
- donald
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