Ruby on Rails：下載文件名中包含多個點的文件（使用Carrierwave上傳）

Question

風景：

<%= link_to File.basename(attachment.attachment.url), "/uploads/#{attachment.id}/#{File.basename(attachment.attachment.url)}" %>

控制器：

# ...
  def download
    path = "#{Rails.root}/uploads/"+ params[:id] + "/"+ params[:basename] +"."+ params[:extension]

    send_file path, :x_sendfile=>true
  end
# ...

路線：

match "/uploads/:id/:basename.:extension", :controller => "attachments", :action => "download", :conditions => { :method => :get }

得到的錯誤是：

Routing Error

No route matches [GET] "/uploads/38/Screen_shot_2012-02-18_at_2.20.49_PM.png"

Answer 1

match "/uploads/:id/:filename.:extension", :controller => "attachments", :action => "download", :constraints => { :filename => /[^\/]+/ },  :conditions => { :method => :get }

感謝forker，我被引導到這個博客： http ：//coding-journal.com/rails-3-routing-parameters-with-dots/

Answer 2

match "/uploads/:id/:filename", :controller => "attachments", :action => download, :requirements => { :filename => /.*/ }

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