def root_context
      context = parent
      context = context.parent until context.is_a? Symbol
      return context
    end
def root_context
      context = parent
      context = context.parent until context.is_a? Symbol
      return context
    end
Do not call new directly, instead use ActionCommand#execute_... variants.
 @return [Symbol] the symbol indicating what context this
 action was executed in, see the ActionCommand::CONTEXT_ constants.