ruby on rails gallery ArgumentError Unknown key(s): attributes, discard_if attachment_fu and paperclip

Hi I'm trying to build a little gallery for myself and tried this link for multiple uploads for a album: http://www.mfischer.com/wordpress/2009/02/02/multiple-image-upload-and-crop-with-rails/

So far I'm running into following error when I visit localhost:3000/albums/new :

ArgumentError in AlbumsController#index
Unknown key(s): attributes, discard_if

Since I am not sure whether the attachment_fu-Plugin nor the paperclip-gem (which I use) are used correctly, maybe thats a problem to look at too?

Further my versions:

Ruby version    1.9.2 (x86_64-linux)
RubyGems version    1.7.1
Rack version    1.2
Rails version   3.0.4
Active Record version   3.0.4
Action Pack version 3.0.4
Active Resource ve开发者_高级运维rsion 3.0.4
Action Mailer version   3.0.4
Active Support version  3.0.4

Can't tell the exact attachment_fu version... :/ Paperclip version is this:

paperclip (2.3.8)

My album model is this:
# == Schema Information
# Schema version: 20110404082122
#
# Table name: albums
#
#  id         :integer         not null, primary key
#  name       :string(255)
#  location   :string(255)
#  date       :date
#  created_at :datetime
#  updated_at :datetime
#

class Album < ActiveRecord::Base
  has_many  :images,
        :attributes => true,
        :discard_if => proc { |upload| upload.photo_file_size.nil? }
end

and my image model is like this:

# == Schema Information
# Schema version: 20110404082122
#
# Table name: images
#
#  id          :integer         not null, primary key
#  name        :string(255)
#  date        :date
#  landscape   :boolean
#  flash       :boolean
#  cameramaker :string(255)
#  cameramodel :string(255)
#  lens        :string(255)
#  flength     :string(255)
#  aperture    :string(255)
#  exposure    :string(255)
#  iso         :string(255)
#  album_id    :integer
#  filesize    :integer
#  created_at  :datetime
#  updated_at  :datetime
#

require 'RMagick'

class Image < ActiveRecord::Base
  belongs_to :album
  has_attached_file :photo,
            :styles => {
              :thumb => ["150x150", :jpg],
              :pagesize => ["500x400", :jpg],
            },
            :default_style => :pagesize
end

Do you need anything more? I don't understand what the problem is.. I think the attachment_fu plugin is too old or I missed something to say rails to use it...?

Thanks for your time!

Wanye

http://apidock.com/rails/ActiveRecord/Associations/ClassMethods/has_many

There is no any :attributes or :discard_if options for has_many association

Looks like in that tutorial author used attribute_fu plugin. So you need to install it

https://github.com/jamesgolick/attribute_fu