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我使用附件模型作为多态关联。如何根据关联更改路径和网址参数。回形针自定义路径和多态关联网址
附件模型
class Attachment < ActiveRecord::Base
belongs_to :user
belongs_to :attachable, :polymorphic => true
has_attached_file :attachment,
:url => "/attachments/:id/:basename.:extension",
:path => ":rails_root/public/attachments/:id/:basename.:extension",
:default_url => "/attachments/original/no-file.txt"
end
项目模型
class Project < ActiveRecord::Base
...
has_many :attachments, :as => :attachable, :dependent => :destroy
end
客户
class Client < ActiveRecord::Base
...
has_many :attachments, :as => :attachable, :dependent => :destroy
end
以下路径文件保存罚款。
:path => ":rails_root/public/attachments/:id/:basename.:extension",
但我需要保存基于关联的文件,为此如何将参数传递给'路径'。 'attachable_type'定义了哪个关联上传文件所属的
/attachments/project/
/attachments/client/
感谢@artimuz工作正常 – Prasanna 2012-03-21 09:02:36