app/views/refinery/race_registrations/admin/groups/_form.html.erb
<%= form_for [refinery, :race_registrations_admin, @group] do |f| -%>
<%= render '/refinery/admin/error_messages',
:object => @group,
:include_object_name => true %>
<div class='field'>
<%= f.label :title -%>
<%= f.text_field :title, :class => 'larger widest' -%>
</div>
<div class='field'>
<%= f.label :category_ids, t('refinery.plugins.categories.title') %>
<%= f.collection_select(:category_ids, Refinery::RaceRegistrations::Category.all.order("title ASC"), :id, :title,
{ },
{ :data => {:placeholder=> t('.choose_categories')}, :multiple=> true, :class=> "chzn-select"}) %>
</div>
<%= render '/refinery/admin/form_actions', :f => f,
:continue_editing => false,
:delete_title => t('delete', :scope => 'refinery.groups.admin.groups.group'),
:delete_confirmation => t('message', :scope => 'refinery.admin.delete', :title => @group.title) %>
<% end -%>