@view_config(renderer='templates/form.pt', name='nonrequiredfields')
    @demonstrate('Non-Required Fields')
    def nonrequiredfields(self):
        class Schema(colander.Schema):
            required = colander.SchemaNode(
                colander.String(),
                description='Required Field'
                )
            notrequired = colander.SchemaNode(
                colander.String(),
                missing=unicode(''),
                description='Unrequired Field')
        schema = Schema()
        form = deform.Form(schema, buttons=('submit',))
        return self.render_form(form)