“:nothing”选项已被弃用,并将在Rails 5.1中被删除
这个代码在rails 5中
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. 
我该如何解决?
 根据钢轨来源 ,这是在nothing: true传递的情况下完成的nothing: true在钢轨5中是正确的。 
 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 
 只需要取代nothing: true的body: nil应该因此解决问题。 
 class PagesController < ApplicationController def action render body: nil end end 
  或者你可以使用 head :ok 
 class PagesController < ApplicationController def action head :ok end end