danbarberphoto/app/views/photos/index.html.erb

<% content_for :navigation do %>
  <div class="sg-5 page-links">
    <% if @photos.previous_page -%>
      <%= link_to raw('<div>&larr;</div>'), { :page => @photos.previous_page }, :class => 'prev-link' %>
    <% end %>
  </div>
  <div class="sg-5 page-links">
    <% if @photos.next_page -%>
      <%= link_to raw('<div>&rarr;</div>'), { :page => @photos.next_page }, :class => 'next-link' %>
    <% end %>
  </div>
<% end %>

<% if @category %>
  <div class="sg-5 category" style="background: <%= @category.base_colour %>">
    <%= link_to raw('<h3>'+h(@category.name.downcase)+'</h3><div class="arrow">&uarr;</div>'), categories_path %>
  </div>
<% else %>
  <div class="sg-5 category" style="background: #333;">
    <h3>all photos</h3>
  </div>
<% end %>

<% @num_blank = 11 - @photos.length -%>

<% @photos.each do |photo| %>
  <div class="sg-5 photo" style="background: url('<%= photo.photo.url(:size5) %>')">
    <%= link_to_photo photo %>
  </div>
<% end %>

<% @num_blank.times do %>
  <div class="sg-5 photo blank-photo">
  </div>
<% end %>