ruby-on-rails - 为什么 Ruby on Rails 7.x.x 不呈现公共(public)文件夹？不是网站图标或 404.html 页面。我使用我的模块，但它不起作用

Question

我使用关注

module ErrorHandling
  extend ActiveSupport::Concern

  included do
    rescue_from ActiveRecord::RecordNotFound, with: :notfound

    private

    def notfound(exception)
      logger.warn exception
      render file: 'public/404.html', status: :not_found, layout: false
    end
  end
end

并将其包含在应用程序类中，包括 ErrorHandling 但它不呈现文件:“public/404.html”，这是什么问题？

我竭尽全力解决这个问题，但无能为力

Answer 1

将相对路径名传递给 render: file 时，Raiuls 将抛出 ArgumentError 并显示以下消息:

`render file:` should be given the absolute path to a file. 'public/404.html' was given instead

此处传递相对路径的能力是deprecated终于在 Rails 6.0 中 removed使用 Rails 6.1.0。

要渲染原始文件，您应该遵循 the current documentation :

Rails can render a raw file from an absolute path. This is useful for conditionally rendering static files like error pages.

render file: "#{Rails.root}/public/404.html", layout: false

This renders the raw file (it doesn't support ERB or other handlers). By default it is rendered within the current layout.

WARNING: Using the :file option in combination with users input can lead to security problems since an attacker could use this action to access security sensitive files in your file system.