<%= pref_with_text_field('prefs', 'date_format') %>
This will result in: <%= l(Date.today, :format => current_user.prefs.date_format) %>

Or pick one of the following:
<% %w{default short long longer}.each do |format| %> <%= radio_button_tag("date_picker1", t("date.formats.#{format}")) %> <%= l(Date.today, :format => format.to_sym) %>
<% end %>
<%= pref_with_text_field('prefs', 'title_date_format') %>
This will result in: <%= l(Date.today, :format => current_user.prefs.title_date_format) %>

Or pick one of the following:
<% %w{default short long longer}.each do |format| %> <%= radio_button_tag("date_picker2", t("date.formats.#{format}")) %> <%= l(Date.today, :format => format.to_sym) %>
<% end %>
<%= pref('prefs', 'time_zone') { time_zone_select('prefs','time_zone') } %> <%= pref_with_select_field('prefs', "week_starts", (0..6).to_a.map {|num| [t('date.day_names')[num], num] }) %>