Question

每个人！我正在使用Paperclip上传文件

class Model
  include Mongoid::Document
  include Mongoid::Paperclip

  has_many :myfiles
 end

class Myfile
  include Mongoid::Document
  include Mongoid::Paperclip

  belongs_to :model 
  has_mongoid_attached_file :file,
   :path => ":rails_root/public/uploads/:class/:id/:basename.:extension",
 end

我的问题是如何在保存后访问上传的文件？我试过了：

    @model.myfiles.first.path
 @model.myfiles.first.url

它给出错误：

NoMethodError: undefined method `path' for #<Myfile:0x007fd22b336f80>

非常感谢您的帮助！

Answer 1

尝试：）

@model.myfiles.first.file.path
@model.myfiles.first.file.url

如果想要

，您可以委派这些字段

class Myfile
  include Mongoid::Document
  include Mongoid::Paperclip

  belongs_to :model 
  has_mongoid_attached_file :file,
   :path => ":rails_root/public/uploads/:class/:id/:basename.:extension"

  delegate :url, :path, to: :file, allow_nil: true, prefix: false
 end

然后你可以使用

@model.myfiles.first.path
@model.myfiles.first.url

Paperclip - 如何访问已保存的文件

1 个答案: