app/views/web/admin/photo_albums/_photo_fields.html.haml
.control-group.nested-fields
.close.mr
= link_to_remove_association 'x', f, :class => 'btn btn-danger disabled'
= f.input :name
= f.input :description
= f.input :main
= f.input :image, :as => :image_preview, :preview_style => :thumb