回形针中的文件名

Question

嘿所以我有一个名为Asset的类，每个Asset都有一个：附件。我想采用：basename。：上传文件的扩展名并将其存储在：asset_file_name中。我该怎么做呢？这是我的班级：

    class Asset < ActiveRecord::Base
    attr_accessible :asset_file_name, :lesson_id, :attachment

    #allows us to use :lesson_id in :url
    Paperclip.interpolates :lesson_id do |attachment, style|
    attachment.instance.lesson_id
    end

    has_attached_file :attachment,
    :url => "/attachments/:lesson_id/:basename.:extension",
    :path => ":rails_root/public/attachments/:lesson_id/:basename.:extension"

    validates_presence_of :asset_file_name
    validates_attachment_presence :attachment

    end

Answer 1

不确定为什么要拥有asset_file_name属性

但你应该能够通过attachment_file_name

获得它