redmine/app/views/users/_preferences.html.erb

<%= labelled_fields_for :pref, @user.pref do |pref_fields| %>
<p><%= pref_fields.check_box :hide_mail %></p>
<p><%= pref_fields.time_zone_select :time_zone, nil, :include_blank => true %></p>
<p><%= pref_fields.select :comments_sorting, [[l(:label_chronological_order), 'asc'], [l(:label_reverse_chronological_order), 'desc']] %></p>
<p><%= pref_fields.check_box :warn_on_leaving_unsaved %></p>
<p><%= pref_fields.select :textarea_font, textarea_font_options %></p>
<p><%= pref_fields.text_field :recently_used_projects, :size => 2 %></p>
<p><%= pref_fields.select :history_default_tab, history_default_tab_options %></p>
<p><%= pref_fields.text_area :toolbar_language_options, :rows => 4 %></p>
<p><%= pref_fields.select :default_issue_query, default_issue_query_options(@user), include_blank: l(:label_none) %></p>
<p><%= pref_fields.select :default_project_query, default_project_query_options(@user), include_blank: l(:label_none) %></p>
<% end %>