Returns the full query parameter name for this action.

        Defaults to
        ``{{ table.name }}__{{ action.name }}__{{ action.param_name }}``.

def get_param_name(self):
        """Returns the full query parameter name for this action.

        Defaults to
        ``{{ table.name }}__{{ action.name }}__{{ action.param_name }}``.
        """
        return "__".join([self.table.name, self.name, self.param_name])