On Jul 18, 2006, at 9:46 PM, Donald Ball wrote:
>
> Sorry for the deluge of questions, I'm trying to master everything
> turbogears has to offer. I'm playing with form widgets now, very nice.
> It's unclear to me, however, how to initialize a form with values
> from a
> model object. For instance, I'm working on using the form widgets
> to build
> an admin controller to manage identity objects. I have an editUser
> method
> which displays forms to add and edit users:
>
> @expose(template=".templates.form")
> def editUser(self, tg_errors=None, *args, **params):
> if tg_errors:
> turbogears.flash("Error on form: " + str(tg_errors))
> return dict(form=user_form, action='saveUser', title='Edit
> User')
>
> the obvious next step will be to add logic to load a User object
> based on
> the params and use that to populate the form. This must be fairly
> easy,
> but it's sadly unclear to me. Any help?
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'))
HTH,
Alberto
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