def get_edited_object(self, request):
        """
        Return the object which is currently being edited.
        Returns ``None`` if the match could not be made.
        """
        resolvermatch = urls.resolve(request.path_info)
        if resolvermatch.namespace == 'admin' and resolvermatch.url_name and resolvermatch.url_name.endswith('_change'):
            # In "appname_modelname_change" view of the admin.
            # Extract the appname and model from the url name.
            # For some custom views, url_name might not be filled in (e.g. django-polymorphic's subclass_view)
            match = RE_CHANGE_URL.match(resolvermatch.url_name)
            if not match:
                return None

            # object_id can be string (e.g. a country code as PK).
            try:
                object_id = resolvermatch.kwargs['object_id']  # Django 2.0+
            except KeyError:
                object_id = resolvermatch.args[0]

            return self.get_object_by_natural_key(match.group(1), match.group(2), object_id)
        return None
Return the object which is currently being edited.
        Returns ``None`` if the match could not be made.