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我只想在用户是管理员时显示注释。官方生成的initilizer有以下几行:

  # Whether or not to enable footnotes
  f.enabled = Rails.env.development?
  # You can also use a lambda / proc to conditionally toggle footnotes
  # Example :
  # f.enabled = -> { User.current.admin? }
  # Beware of thread-safety though, Footnotes.enabled is NOT thread safe
  # and should not be modified anywhere else.

但我不能做得比这更好:

f.enabled = true
f.before {|controller, filter| filter.notes = controller.current_user.try(:admin?) ? [:controller, :view, :layout, :partials, :stylesheets, :javascripts, :assigns, :session, :cookies, :params, :filters, :routes, :env, :queries, :log] : []  }

它有效,但它正确/安全吗?我真正想要的是通过清空或不清空注释列表来模拟 rails-footnots 启用。如何使用官方的 lambda 表示法?User.current.admin?对我来说没有意义,因为模型不应该有权访问会话

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1 回答 1

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rails-footnotes 在打开问题后修复/改进。现在你可以这样做:

f.enabled = proc { |controller| controller.current_user.try(:admin?) }
于 2015-03-27T10:26:38.817 回答