ruby-on-rails - 如何在 json 中不渲染任何内容？

Question

我正在测试以下方法:

  def destroy
    if @article.destroy
      render json nothing: true, message: "removed", status: :ok
    else
      render json: @article, message: "Failed to remove", status: :bad_request
    end
  end

render json nothing行产生错误

undefined method `json' for #Api::V1::ArticlesController:0x000000074f6148

将线路更改为 render json: message: "removed", status: :ok没什么区别。如何不渲染？

更新:我尝试了下面的代码，删除后响应 No response received ，而我期待的消息。

  def destroy
    if @article.destroy
      respond_to do |format|
        format.json { render nothing: true, message: "removed", status: :ok }
      end
    else
      render json: @article, message: "Failed to remove", status: :bad_request
    end
  end

Answer 1

如果你真的不想渲染任何东西:

head :ok # or any another status, e.g. :created, :accepted, etc

作为参数，您可以添加状态代码或符号状态( statuses 或仅在控制台中 Rack::Utils::SYMBOL_TO_STATUS_CODE )

如果您想发送 JSON 消息作为响应:

render json: { message: "removed" }, status: :ok