def formfield_for_dbfield(self, db_field, **kwargs):
        """
        Adds the "Send to Twitter" checkbox after the "status" field,
        provided by any ``Displayable`` models. The approach here is
        quite a hack, however the sane approach of using a custom
        form with a boolean field defined, and then adding it to the
        formssets attribute of the admin class fell apart quite
        horrifically.
        """
        formfield = super(TweetableAdminMixin,
            self).formfield_for_dbfield(db_field, **kwargs)
        if Api and db_field.name == "status" and get_auth_settings():
            def wrapper(render):
                def wrapped(*args, **kwargs):
                    rendered = render(*args, **kwargs)
                    label = _("Send to Twitter")
                    return mark_safe(rendered + FORMFIELD_HTML % label)
                return wrapped
            formfield.widget.render = wrapper(formfield.widget.render)
        return formfield
Adds the "Send to Twitter" checkbox after the "status" field,
        provided by any ``Displayable`` models. The approach here is
        quite a hack, however the sane approach of using a custom
        form with a boolean field defined, and then adding it to the
        formssets attribute of the admin class fell apart quite
        horrifically.