%h1 Nested Models example = form_for @product do |form| %p = form.label :name = form.text_field :name %p = form.fields_for :features do |feature_form| = feature_form.label :name, "Feature Name" = feature_form.autocomplete_field :name, autocomplete_feature_name_nested_models_path, :"data-delimiter" => ',' = feature_form.text_field :name