redmine/app/views/projects/settings/_modules.html.erb

<%= form_for @project,
            :url => { :action => 'modules', :id => @project },
            :html => {:id => 'modules-form',
                      :method => :post} do |f| %>

<div class="box">
<fieldset>
<legend><%= l(:text_select_project_modules) %></legend>

<% Redmine::AccessControl.available_project_modules.each do |m| %>
<p><label><%= check_box_tag 'enabled_module_names[]', m, @project.module_enabled?(m) -%>
 <%= l_or_humanize(m, :prefix => "project_module_") %></label></p>
<% end %>
</fieldset>
</div>

<p><%= check_all_links 'modules-form' %></p>
<p><%= submit_tag l(:button_save) %></p>

<% end %>