Software Público Brasileiro

# Monkey patch to rewrite attachment_fu's logic where no image with parent can
# be thumbnailable.

Technoweenie::AttachmentFu::InstanceMethods.module_eval do
  def thumbnailable?
    image? && !is_thumbnail?
  end

  def is_thumbnail?
    (thumbnail_class == self.class) && !(respond_to?(:parent_id) && parent_id.nil?)
  end
end

# Monkey patch to rewrite attachment_fu's logic where no image with parent can
# be thumbnailable and supposition that full_filename will return a String
# while it might return Pathname.
Technoweenie::AttachmentFu::Backends::FileSystemBackend.module_eval do
  def attachment_path_id
    (is_thumbnail? && respond_to?(:parent_id)) ? parent_id : id
  end

  def public_filename(thumbnail = nil)
    full_filename(thumbnail).to_s.gsub %r(^#{Regexp.escape(base_path)}), ''
  end
end