require "administrate/fields/base"

class MarkdownField < Administrate::Field::Base
  def rendered
    renderer.render(data).html_safe
  end

  def truncate
    data.to_s[0...truncation_length]
  end

  private

  def renderer
    Redcarpet::Markdown.new(Redcarpet::Render::HTML, extensions: {})
  end

  def truncation_length
    options.fetch(:truncate, 50)
  end
end