ruby-on-rails - ":nothing"选项已弃用，并将在 Rails 5.1 中删除

Question

Rails 5 中的此代码

class PagesController < ApplicationController
  def action
    render nothing: true
  end
end

导致以下弃用警告

DEPRECATION WARNING: :nothing` option is deprecated and will be removed in Rails 5.1. Use `head` method to respond with empty response body.

如何解决这个问题？

Answer 1

根据the rails source ，这是在 Rails 5 中传递 nothing: true 时在幕后完成的。

if options.delete(:nothing)
  ActiveSupport::Deprecation.warn("`:nothing` option is deprecated and will be removed in Rails 5.1. Use `head` method to respond with empty response body.")
  options[:body] = nil
end

只需将 nothing: true 替换为 body: nil 就可以解决问题。

class PagesController < ApplicationController
  def action
    render body: nil
  end
end

alternatively you can use 头:好的

class PagesController < ApplicationController
  def action
    head :ok
  end
end