You need to make your widget a class so you can pass args to it in the
constructor:
class Units_Widget(object):
def __init__(**args):
def widget(f,v):
#build your widget
#using args
return widget
db.ate.units.widget = Units_Widget(food_id)
On Mar 27, 10:42 am, Avik Basu <avikb...@gmail.com> wrote:
> So, for my example, I tried your suggestion. I defined a widget in
> models/widgets.py:
>
> def units_widget(field,value,food_id):
> ...
>
> and then in the controller, I set the widget with:
>
> db.ate.units.widget = units_widget(food_id)
>
> But here I am not passing field and value so I get an error. What
> would be the proper way to call the widget constructor?
>
> Avik
>
> On Mar 27, 12:02 am, mdipierro <mdipie...@cs.depaul.edu> wrote:
>
> > in the controller you can do
>
> > db.table.field.widget = SomeWidgetConstructor(args)
>
> > Not sure if this is what you are asking.
>
> > On 26 Mar, 18:26, Avik Basu <avikb...@gmail.com> wrote:
>
> > > Is there a way to pass arguments to a field's widget from the
> > > controller? For example:
>
> > > db.define_table("food", Field("name", "string'"))
>
> > > db.define_table("units",
> > > Field("food_id", db.food),
> > > Field("name", "string")
> > > )
>
> > > db.define_table("ate",
> > > Field("food_id", db.food),
> > > Field("quantity", "double"),
> > > Field("units", "string", widget=units_widget),
> > > )
>
> > > In an update form for "ate", I would like to create a dropdown box of
> > > units that are associated with a given food_id. I realize could not
> > > be set in the db.py since the food id would be unknown in that scope,
> > > however the action in the controller would have access to the food id,
> > > but I would like to be able to pass that somehow to the widget.
>
> > > Thanks,
> > > Avik
>
>
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