Module: Paperclip::Remote

Included in:
ClassMethods
Defined in:
lib/paperclip/remote.rb

Overview

Allows fetching files from remote locations. Example:

class User < ActiveRecord::Base
  has_attached_file :photo, :remote => true
  attr_accessible   :photo, :photo_remote_url
end

In the form you can then have:

<%= f.label :photo, "Please update a photo" %>
<%= f.file_field :photo %>
<br/>
<%= f.label :photo_remote_url, "or specify a URL" %>
<%= f.text_field :photo_remote_url %>

Instance Method Summary collapse

Instance Method Details

#has_attached_file_with_remote(name, options = {}) ⇒ Object 



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# File 'lib/paperclip/remote.rb', line 21

def has_attached_file_with_remote(name, options = {})
  original = has_attached_file_without_remote(name, options)
  return original unless attachment_definitions[name][:remote]

  attr_reader   :"#{name}_remote_url"
  define_method :"#{name}_remote_url=" do |string|
    url = URI(string.presence) rescue nil
    url = nil unless URI::HTTP === url
    instance_variable_set(:"@#{name}_remote_url", url)
  end

  before_validation do |record|
    url = record.send(:"#{name}_remote_url")
    break unless url.present?

    begin
      if Paperclip::VERSION < "3.1.4"
        io = open(url.to_s)
        def io.original_filename
          File.basename(base_uri.path)
        end
        send :"#{name}=", io
      else
        record.send(:"#{name}_remote_url=", nil) # Reset!
        send :"#{name}=", url
      end
    rescue OpenURI::HTTPError
    end
  end

  original
end