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Demo: Selectize Widget (with optgroup)

Captured submission

None

Code (click to show in context) 

    @view_config(renderer="templates/form.pt", name="selectize_with_optgroup")
    @demonstrate("Selectize Widget (with optgroup)")
    def selectize_with_optgroup(self):
        from deform.widget import OptGroup

        choices = (
            ("", "Select your favorite musician"),
            OptGroup(
                "Guitarists",
                ("page", "Jimmy Page"),
                ("hendrix", "Jimi Hendrix"),
            ),
            OptGroup(
                "Drummers",
                ("cobham", "Billy Cobham"),
                ("bonham", "John Bonham"),
            ),
        )

        class Schema(colander.Schema):
            musician = colander.SchemaNode(
                colander.String(),
                widget=deform.widget.SelectizeWidget(
                    values=choices,
                    attributes={
                        "placeholder": "Select...",
                    },
                ),
            )

        schema = Schema()
        form = deform.Form(schema, buttons=("submit",))

        return self.render_form(form)