app/views/shared/_footer.html.erb
<% cache("views/shared/footer", :expires_in => 1.hour) { %>
<div class='footer bar'>
<div class='bass_clef'></div>
<div class='credits'>
<p><%= t 'footer.copyright' %></p>
<p><%= link_to t('footer.tiredpixel'), "https://www.tiredpixel.com" %></p>
</div>
<div class='links'>
<p><%= link_to(t('legal.title'), legal_path) %></p>
</div>
</div>
<% } %>