- collection_name = "#{collection_name.singularize}_custom_fields"
- custom_fields = f.object.send(collection_name.to_sym)
- ordered_custom_fields = f.object.send(:"ordered_#{collection_name}")

= f.foldable_inputs :name => :custom_fields, :class => 'editable-list fields' do
  - ordered_custom_fields.each do |field|
    = f.fields_for collection_name.to_sym, field, :child_index => field._index do |g|  
      %li{ :class => "item added #{'error' unless field.errors.empty?}"}
        %span.handle
          = image_tag 'admin/form/icons/drag.png'
        
        = g.hidden_field :position, :class => 'position'
        
        = g.hidden_field :_alias, :class => 'alias'
        
        = g.hidden_field :hint, :class => 'hint'
      
        = g.text_field :label
      
        —
      
        %em= t("admin.custom_fields.kind.#{field.kind.downcase}")
      
        = g.select :kind, options_for_field_kind
      
         
      
        %span.actions
          = link_to image_tag('admin/form/pen.png'), '#edit-custom-field', :class => 'edit first'
          = link_to image_tag('admin/form/icons/trash.png'), '#', :class => 'remove', :confirm => t('admin.messages.confirm')
    
  = f.fields_for collection_name.to_sym, custom_fields.build(:label => 'field name', :_alias => ''), :child_index => '-1' do |g|   
    %li{ :class => 'item template' }
      %span.handle
        = image_tag 'admin/form/icons/drag.png'
    
      = g.hidden_field :position, :class => 'position'
      
      = g.hidden_field :_alias, :class => 'alias'
      
      = g.hidden_field :hint, :class => 'hint'
    
      = g.text_field :label, :class => 'string label void'
  
      —
  
      %em
  
      = g.select :kind, options_for_field_kind
  
       
  
      %span.actions
        = link_to image_tag('admin/form/pen.png'), '#edit-custom-field', :class => 'edit first'
        = link_to image_tag('admin/form/icons/trash.png'), '#', :class => 'remove', :confirm => t('admin.messages.confirm')
        %button{ :class => 'button light add', :type => 'button' }
          %span= t('admin.buttons.new_item')