bouquins-ror/app/views/layouts/_initials.html.erb

<% initials = ['0'] + ('A'..'Z').to_a %>
<div class="center">
	<ul class="pagination pagination-sm" title="<%= t :initial_tooltip %>">
<% initials.each do |i|
	is_cur = (i == @preference.initial) %>
	<%= content_tag :li, class: (is_cur ? "active": nil) do %>
		<%= link_to i, url_for(initial: ( is_cur ? "reset" : i)), remote: true %>
	<% end %>
<% end %>
	</ul>
</div>