Gravatar in rails

Just a quick code-snippet today. A quick helper to take an email and spit out a gravatar image.

  # show the gravatar image for a profile - based on their email
  def gravatar(email, size = 100)
    the_hash = Digest::MD5.hexdigest(email).to_s
    image_tag "http://www.gravatar.com/avatar/#{the_hash}?s=#{size}&d=mm"
  end

This one displays the "mystery man" image if the person doesn't have a gravatar. More details on the options and how to tweak it further are available on the Gravatar Image Requests page.