madwork

class Attachment < ActiveRecord::Base
  mount_uploader :attachment, AttachmentUploader

  # Associations

  belongs_to :attached_item, polymorphic: true

  # Validations

  validates_presence_of :attachment

olistik

Ubuntu 12.10 setup (rbenv/RVM, Janus, PostgreSQL)

Basic pre-requisites

• Some utilities:

sudo apt-get install vim tmux git curl

• Copy/paste from the command line:

schoren

:ruby
  config = field.associated_model_config
  selected = field.bindings[:object].send(field.association[:name])
  selected_ids = selected.map(&:id)
  xhr = field.associated_collection_count > 100
  if xhr
    collection = selected.map do |o|
      [o.send(config.object_label_method), o.id]
    end
  else