Question

我有以下内容：

＆lt;％= project_attachment_path（attachment.project，attachment）％＆gt;

输出：/projects/70/attachments/25

＆lt;％= attachment.download_url％＆gt;

输出：/attachments/25/original.jpg?1291407855

我想要的是：/projects/70/attachments/25?original.jpg?1291407855

我试过了：<%= project_attachment_path(attachment.project, attachment.download_url) %>

但那个错误？有没有办法完成上述工作？

由于

使用Download_url方法更新

class Attachment < ActiveRecord::Base
  def download_url(style = nil, include_updated_timestamp = true)
    url = Paperclip::Interpolations.interpolate('/:class/:id/:style.:extension', attachment, style || attachment.default_style)
    include_updated_timestamp && attachment.updated_at ? [url, attachment.updated_at].compact.join(url.include?("?") ? "&" : "?") : url
  end

途径：

resources :projects do
# Download Attachment
get "attachments/:id/:style.:format" => "attachments#download", :as => :attachment
end

resources :attachments do
 collection do
  get 'download', :as => :download
 end
end

Rake Routes：

project_attachment GET    /projects/:project_id/attachments/:id/:style.:format         {:action=>"download", :controller=>"attachments"}

Answer 1

好的：当你使用这个...... url = Paperclip :: Interpolations.interpolate（'/：class /：id /：style。：extension'，attachment，style || attachment.default_style）

'/:class/:id/:style.:extension'部分正在创建错误的网址：/attachments/25/original.jpg?1291407855

我不确定完全将“projects / project_id”部分放入您的网址的最佳方式，但您需要执行以下操作：

class Attachment < ActiveRecord::Base
  def download_url(style = nil, include_updated_timestamp = true)

    project_id = self.project.id.to_s

    attachment_url = Paperclip::Interpolations.interpolate('/:class/:id/:style.:extension', attachment, style || attachment.default_style)
    include_updated_timestamp && attachment.updated_at ? [url, attachment.updated_at].compact.join(url.include?("?") ? "&" : "?") : url

    url = 'projects/' + project_id + attachment_url
  end

可能有更优雅的方式来做到这一点，但我认为这应该让你走上正轨。希望它有所帮助！

Answer 2

您可以通过以下方式检查所有可用路径：

rake routes

Rails使用嵌套路径

2 个答案: