Paperclip association question

I have two model

User and UserAgent

User has one UserAgent & UserAgent belongs to User

And UserAgent using Paperclip to upload file to server

Using this

has_attached_file :agreement,

:path => "#{Rails.root}/public/upload/new_agreements/:id/:basename.:extension"

This working fine.It is creating folders needed to upload the file.

But i need to create the folder like this

:path => "#{Rails.root}/public/upload/new_agreements/User:id/:basename.:extension"

That means I need to upload the file according to the User.id but not UserAgent.Id

Is there any way? You can ask questions if u don't understand the qu开发者_Python百科estion.

Try that. I haven't test it, but you can modify it:

class UserAgent < ActiveRecord::Base
  has_attached_file :file, 
                    :path => lambda{ |a| "#{Rails.root}/public/upload/new_agreements/#{a.instance.user.id}/:id/:basename.:extension" }
end