asciinema.org/app/decorators/user_decorator.rb

class UserDecorator < ApplicationDecorator
  include AvatarHelper

  def link
    wrap_with_link(username)
  end

  def img_link
    wrap_with_link(avatar_image_tag)
  end

  def full_name
    if model.name.present?
      "#{model.name} (#{model.username})"
    else
      model.username
    end
  end

  def joined_at
    created_at.strftime("%b %-d, %Y")
  end

  private

  def wrap_with_link(html)
    if dummy
      html
    else
      h.link_to html, h.profile_path(model), title: username
    end
  end

end