ruby-on-rails – 在非开发层上预览Mailers

我想在登台环境中启用它并从this post here开始排队.

我做了以下更改 –

配置/ routes.rb中

# Add the routes manually
if Rails.env.staging?
  get "/rails/mailers" => "rails/mailers#index"
  get "/rails/mailers/*path" => "rails/mailers#preview"
end

配置/环境/ staging.rb

Rails.application.configure do
  # Define the mailer preview path
  config.action_mailer.preview_path = "spec/mailers/previews"

  # Specifically add that path and all files under it to the autoload paths
  config.autoload_paths = Dir["#{config.root}/#{config.action_mailer.preview_path}/**"]
end

class ::Rails::MailersController
  include Rails.application.routes.url_helpers

  # Override the method just for this controller so `MailersController` thinks
  # all requests are local.
  def local_request?
    true
  end
end

但是在暂存时,我在尝试加载/ rails / mailers页面时遇到以下错误 –

LoadError (No such file to load -- spec/mailers/previews/admin_mailer_preview):

奇怪的是……那个文件肯定存在.当我检查分段上的自动加载路径时,该文件肯定在数组/列表中.

有关这里可能发生的事情的任何想法,或者我应该如何揭露该端点？

谢谢！