root/vendor/plugins/file_column/test/fixtures/entry.rb

class Entry < ActiveRecord::Base
  attr_accessor :validation_should_fail

  def validate
    errors.add("image","some stupid error") if @validation_should_fail
  end
  
  def after_assign
    @after_assign_called = true
  end
  
  def after_assign_called?
    @after_assign_called
  end
  
  def after_save
    @after_save_called = true
  end

  def after_save_called?
    @after_save_called
  end

  def my_store_dir
    # not really dynamic but at least it could be...
    "my_store_dir"
  end

  def load_image_with_rmagick(path)
    Magick::Image::read(path).first
  end
end